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verified gcc-4.6.4.tar.bz2.sig;
imported gcc-4.6.4 source tree from verified upstream tarball.

downloading a git-generated archive based on the 'upstream' tag
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7 files changed, 2839 insertions, 0 deletions

diff --git a/libjava/classpath/gnu/javax/naming/giop/ContextContinuation.java b/libjava/classpath/gnu/javax/naming/giop/ContextContinuation.java
new file mode 100644
index 000000000..e952393cc
--- /dev/null
+++ b/libjava/classpath/gnu/javax/naming/giop/ContextContinuation.java
@@ -0,0 +1,956 @@
+/* ContextContinuation.java -- handles corbaname: urls
+   Copyright (C) 2006 Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+package gnu.javax.naming.giop;
+
+import gnu.CORBA.NamingService.Ext;
+import gnu.CORBA.NamingService.NameTransformer;
+
+import java.util.Hashtable;
+
+import javax.naming.Binding;
+import javax.naming.Context;
+import javax.naming.ContextNotEmptyException;
+import javax.naming.InvalidNameException;
+import javax.naming.Name;
+import javax.naming.NameAlreadyBoundException;
+import javax.naming.NameClassPair;
+import javax.naming.NameNotFoundException;
+import javax.naming.NameParser;
+import javax.naming.NamingEnumeration;
+import javax.naming.NamingException;
+import javax.naming.OperationNotSupportedException;
+import javax.naming.directory.InvalidAttributesException;
+
+import org.omg.CORBA.ORB;
+import org.omg.CORBA.portable.Delegate;
+import org.omg.CORBA.portable.ObjectImpl;
+import org.omg.CosNaming.BindingIteratorHolder;
+import org.omg.CosNaming.BindingListHolder;
+import org.omg.CosNaming.NameComponent;
+import org.omg.CosNaming.NamingContext;
+import org.omg.CosNaming.NamingContextExt;
+import org.omg.CosNaming.NamingContextExtHelper;
+import org.omg.CosNaming.NamingContextHelper;
+import org.omg.CosNaming._NamingContextExtStub;
+import org.omg.CosNaming._NamingContextStub;
+import org.omg.CosNaming.NamingContextPackage.AlreadyBound;
+import org.omg.CosNaming.NamingContextPackage.CannotProceed;
+import org.omg.CosNaming.NamingContextPackage.InvalidName;
+import org.omg.CosNaming.NamingContextPackage.NotFound;
+
+/**
+ * The context to represent the corba naming service. Being the naming service,
+ * the returned context supports creating the subcontexts, forwarding this task
+ * to the existing naming service. When listing bindings, it uses the
+ * {@link Context#BATCHSIZE} property to determine, how many bindings should
+ * be returned at once (the process is transparend)
+ *
+ * @author Audrius Meskauskas (audriusa@Bioinformatics.org)
+ */
+public class ContextContinuation implements Context
+{
+  /**
+   * This number of bindings will be requested from the naming server at once,
+   * while the subsequent bindings will be requested via binding iterator one by
+   * one. Use {@link Context#BATCHSIZE} to override the value of this constant.
+   */
+  public int DEFAULT_BATCH_SIZE = 20;
+
+  /**
+   * The actual CORBA naming service.
+   */
+  NamingContextExt service;
+
+  /**
+   * The object request broker, used to access the naming service. This field
+   * is only initialised when the context is constructed from the URL.
+   */
+  ORB orb;
+
+  /**
+   * The properties.
+   */
+  Hashtable properties;
+
+  /**
+   * The parent factory.
+   */
+  GiopNamingServiceFactory factory;
+
+  /**
+   * The name transformer to obtain the name from its string representation. The
+   * to_name method of the naming service is avoided as it may be remote and
+   * hence expensive. The conversion rules are standard and cannot be service
+   * specific.
+   */
+  static NameTransformer transformer = new NameTransformer();
+
+  /**
+   * The batch size for list operations - how many to return at once.
+   */
+  public final int howMany;
+
+  /**
+   * Creates a new naming context that uses naming service, represented by the
+   * given CORBA object.
+   *
+   * @param nsObject
+   *          the naming service object. It must be possible to narrow it into
+   *          the NamingContextExt.
+   * @param props
+   *          the environment table.
+   * @param anOrb
+   *          the associated ORB. This reference is used during cleanup.
+   * @param aFactory
+   *          parent factory. This reference is used during cleanup.
+   */
+  public ContextContinuation(org.omg.CORBA.Object nsObject,
+                                     Hashtable props, ORB anOrb,
+                                     GiopNamingServiceFactory aFactory)
+  {
+    factory = aFactory;
+    orb = anOrb;
+
+    Delegate delegate = ((ObjectImpl) nsObject)._get_delegate();
+
+    // If the IOR provides the IDL ID, we can check if our name
+    // service is old NamingContext or new NamingContextExt.
+    // Not all forms of the URL always provide the IDL id.
+    if (!nsObject._is_a(NamingContextExtHelper.id())
+        && nsObject._is_a(NamingContextHelper.id()))
+      {
+        // We are surely working with the old version.
+        _NamingContextStub stub = new _NamingContextStub();
+        stub._set_delegate(delegate);
+        // The Ext object will add the necessary extensions.
+        service = new Ext(stub);
+      }
+    else
+      {
+        // We expecte the service to be the NamingContextExt (this is true
+        // for both Sun's and our implementations). There is no easy way
+        // to check the version.
+        _NamingContextExtStub stub = new _NamingContextExtStub();
+        stub._set_delegate(delegate);
+        service = stub;
+      }
+    properties = props;
+    howMany = getBatchSize();
+  }
+
+  /**
+   * Give the specified name for the specified object. The passed name must not
+   * be already bound to some other object. The components of the name are
+   * mapped into the components of the CORBA name.
+   *
+   * @param name
+   *          the name that will be given to the object (in the scope of this
+   *          context).
+   * @param obj
+   *          the object being named.
+   * @throws NameAlreadyBoundException
+   *           if this name is already used to name some object.
+   * @throws InvalidAttributesException
+   *           if the object does not supply all required attributes.
+   * @throws NamingException
+   *           if the naming operation has failed due other reasons.
+   */
+  public void bind(Name name, Object obj) throws NamingException
+  {
+    try
+      {
+        org.omg.CORBA.Object object = (org.omg.CORBA.Object) obj;
+        service.bind(toGiop(name), object);
+      }
+    catch (ClassCastException e)
+      {
+        throw new NamingException(org.omg.CORBA.Object.class + " required ");
+      }
+    catch (InvalidName e)
+      {
+        throw new InvalidNameException();
+      }
+    catch (AlreadyBound e)
+      {
+        throw new NameAlreadyBoundException();
+      }
+    catch (Exception e)
+      {
+        throw new NamingException(e.toString());
+      }
+  }
+
+  /**
+   * Give the specified name for the specified object. The passed name must not
+   * be already bound to some other object.
+   *
+   * @param name
+   *          the name that will be given to the object (in the scope of this
+   *          context).
+   * @param obj
+   *          the object being named.
+   * @throws NameAlreadyBoundException
+   *           if this name is already used to name some object.
+   * @throws InvalidAttributesException
+   *           if the object does not supply all required attributes.
+   * @throws NamingException
+   *           if the naming operation has failed due other reasons.
+   */
+  public void bind(String name, Object obj) throws NamingException
+  {
+    try
+      {
+        org.omg.CORBA.Object object = (org.omg.CORBA.Object) obj;
+        service.bind(transformer.toName(name), object);
+      }
+    catch (ClassCastException e)
+      {
+        throw new NamingException(org.omg.CORBA.Object.class + " required ");
+      }
+    catch (InvalidName e)
+      {
+        throw new InvalidNameException();
+      }
+    catch (AlreadyBound e)
+      {
+        throw new NameAlreadyBoundException();
+      }
+    catch (Exception e)
+      {
+        throw new NamingException(e.toString());
+      }
+  }
+
+  /**
+   * Releases all resources, associated with this context. The close() method
+   * can be called several times, but after it has been once invoked, it is not
+   * allowed to call any other method of this context. This method destroys
+   * the ORB, if we have one.
+   *
+   * @throws NamingException
+   */
+  public void close() throws NamingException
+  {
+    if (orb != null && factory !=null)
+      {
+        factory.checkIfReferenced(orb);
+      }
+  }
+
+  /**
+   * Not supported.
+   */
+  public Name composeName(Name name, Name prefix) throws NamingException
+  {
+    throw new OperationNotSupportedException();
+  }
+
+  /**
+   * Not supported
+   */
+  public String composeName(String name1, String name2) throws NamingException
+  {
+    throw new OperationNotSupportedException();
+  }
+
+  /**
+   * Creates the new naming subcontext and binds it to the current (this)
+   * context. The returned object will wrap around the newly created CORBA
+   * subcontext
+   *
+   * @param subContext
+   *          the name of the new context being created
+   * @return the newly created context, bound to the instance of the context on
+   *         that the method has been called
+   * @throws NameAlreadyBoundException
+   *           if this name is already bound
+   * @throws InvalidAttributesException
+   *           if the creation of the new context requires the missing mandatory
+   *           attributes
+   * @throws NamingException
+   */
+  public Context createSubcontext(Name subContext) throws NamingException
+  {
+    try
+      {
+        org.omg.CORBA.Object subcontext = service.bind_new_context(
+          toGiop(subContext));
+        Hashtable clonedProps = new Hashtable();
+        clonedProps.putAll(properties);
+
+        // Nulls are passed both for orb and factory, as the child contexts
+        // need not to do any cleanup.
+        return new ContextContinuation(subcontext, clonedProps, null, null);
+      }
+    catch (AlreadyBound e)
+      {
+        throw new NameAlreadyBoundException();
+      }
+    catch (InvalidName e)
+      {
+        throw new InvalidNameException();
+      }
+    catch (Exception ex)
+      {
+        throw new NamingException(ex.toString());
+      }
+  }
+
+  /**
+   * Creates the new naming subcontext and binds it to the current (this)
+   * context. The returned object will wrap around the newly created CORBA
+   * subcontext
+   *
+   * @param subContext
+   *          the name of the new context being created
+   * @return the newly created context, bound to the instance of the context on
+   *         that the method has been called
+   * @throws NameAlreadyBoundException
+   *           if this name is already bound
+   * @throws InvalidAttributesException
+   *           if the creation of the new context requires the missing mandatory
+   *           attributes
+   * @throws NamingException
+   */
+  public Context createSubcontext(String subContext) throws NamingException
+  {
+    try
+      {
+        org.omg.CORBA.Object subcontext =
+          service.bind_new_context(transformer.toName(subContext));
+        Hashtable clonedProps = new Hashtable();
+        clonedProps.putAll(properties);
+
+        // Nulls are passed both for orb and factory, as the child contexts
+        // need not to do any cleanup.
+        return new ContextContinuation(subcontext, clonedProps, null,
+                                               null);
+      }
+    catch (AlreadyBound e)
+      {
+        throw new NameAlreadyBoundException(subContext);
+      }
+    catch (InvalidName e)
+      {
+        throw new InvalidNameException(subContext);
+      }
+    catch (Exception ex)
+      {
+        throw new NamingException(ex.toString());
+      }
+  }
+
+  /**
+   * Removes the naming subcontext from this naming context. Returns without
+   * action if such subcontext does not exist. The context being destroyed must
+   * be empty.
+   *
+   * @param subContext
+   *          the name of the subcontext beig removed.
+   * @throws ContextNotEmptyException
+   *           if the named context is not empty.
+   * @throws NamingException
+   */
+  public void destroySubcontext(Name subContext) throws NamingException
+  {
+    unbind(subContext);
+  }
+
+  /**
+   * Removes the naming subcontext from this naming context. Returns without
+   * action if such subcontext does not exist. The context being destroyed must
+   * be empty.
+   *
+   * @param subContext
+   *          the name of the subcontext beig removed.
+   * @throws ContextNotEmptyException
+   *           if the named context is not empty.
+   * @throws NamingException
+   */
+  public void destroySubcontext(String subContext) throws NamingException
+  {
+    unbind(subContext);
+  }
+
+  /**
+   * Returs the full name of this naming context. The returned string is not a
+   * JNDI composite name and should not be passed directly to the methods of the
+   * naming context. This implementation returns the IOR.
+   *
+   * @return the full name of this naming context, in its own namespace.
+   * @throws OperationNotSupportedException
+   *           if the naming system, represented by this context, does not
+   *           support the notation of the full name.
+   * @throws NamingException
+   */
+  public String getNameInNamespace() throws NamingException
+  {
+    if (orb != null)
+      return orb.object_to_string(service);
+    else
+      {
+        try
+          {
+            ObjectImpl impl = (ObjectImpl) service;
+            return impl._orb().object_to_string(impl);
+          }
+        catch (ClassCastException e)
+          {
+            throw new UnsupportedOperationException();
+          }
+      }
+  }
+
+  /**
+   * Not supported.
+   */
+  public NameParser getNameParser(Name name) throws NamingException
+  {
+    throw new UnsupportedOperationException();
+  }
+
+  /**
+   * Not supported.
+   */
+  public NameParser getNameParser(String name) throws NamingException
+  {
+    throw new UnsupportedOperationException();
+  }
+
+  /**
+   * Creates and returns the enumeration over the name bindings that are present
+   * the given subcontext. The enumeration elements have the type of
+   * {@link NameClassPair}, providing also information about the class of the
+   * bound object. The behaviour in the case if the bindings are added or
+   * removed later is not defined. The contents of the subcontexts are not
+   * included.
+   *
+   * @param name
+   *          the name of the subcontext
+   * @return the enumeration over the names, known for the given subcontext.
+   * @throws NamingException
+   */
+  public NamingEnumeration list(Name name) throws NamingException
+  {
+    BindingIteratorHolder bi = new BindingIteratorHolder();
+    BindingListHolder bl = new BindingListHolder();
+
+    NamingContext subcontext;
+
+    if (name.size() == 0)
+      subcontext = service;
+    else
+      {
+        try
+          {
+            subcontext = (NamingContextHelper.narrow(service.resolve(toGiop(name))));
+          }
+        catch (Exception e)
+          {
+            throw new NamingException(e.toString());
+          }
+
+      }
+
+    subcontext.list(howMany, bl, bi);
+
+    return new ListEnumeration(bl, bi, howMany);
+  }
+
+  /**
+   * Creates and returns the enumeration over the name bindings that are present
+   * the given subcontext. The enumeration elements have the type of
+   * {@link NameClassPair}, providing also information about the class of the
+   * bound object. The behaviour in the case if the bindings are added or
+   * removed later is not defined. The contents of the subcontexts are not
+   * included.
+   *
+   * @param name
+   *          the name of the subcontext
+   * @return the enumeration over the names, known for the given subcontext.
+   * @throws NamingException
+   */
+  public NamingEnumeration list(String name) throws NamingException
+  {
+    BindingIteratorHolder bi = new BindingIteratorHolder();
+    BindingListHolder bl = new BindingListHolder();
+
+    NamingContext subcontext;
+
+    if (name.length() == 0)
+      subcontext = service;
+    else
+      {
+        try
+          {
+            subcontext = (NamingContextHelper.narrow(service.resolve_str(name)));
+          }
+        catch (Exception e)
+          {
+            throw new NamingException(e.toString());
+          }
+
+      }
+
+    subcontext.list(howMany, bl, bi);
+
+    return new ListEnumeration(bl, bi, howMany);
+  }
+
+  /**
+   * Creates and returns the enumeration over the name - object bindings that
+   * are present the given subcontext. The enumeration elements have the type of
+   * {@link Binding}, providing also information about the class of the bound
+   * object. The behaviour in the case if the bindings are added or removed
+   * later is not defined. The contents of the subcontexts are not included.
+   *
+   * @param name
+   *          the name of the subcontext
+   * @return the enumeration over the names, known for the given subcontext.
+   * @throws NamingException
+   */
+  public NamingEnumeration listBindings(Name name) throws NamingException
+  {
+    BindingIteratorHolder bi = new BindingIteratorHolder();
+    BindingListHolder bl = new BindingListHolder();
+
+    NamingContext subcontext;
+
+    if (name.size() == 0)
+      subcontext = service;
+    else
+      {
+        try
+          {
+            subcontext = (NamingContextHelper.narrow(service.resolve(toGiop(name))));
+          }
+        catch (Exception e)
+          {
+            throw new NamingException(e.toString());
+          }
+      }
+
+    subcontext.list(howMany, bl, bi);
+
+    return new ListBindingsEnumeration(bl, bi, howMany, subcontext);
+  }
+
+  /**
+   * Creates and returns the enumeration over the name - object bindings that
+   * are present the given subcontext. The enumeration elements have the type of
+   * {@link Binding}, providing also information about the class of the bound
+   * object. The behaviour in the case if the bindings are added or removed
+   * later is not defined. The contents of the subcontexts are not included.
+   *
+   * @param name
+   *          the name of the subcontext
+   * @return the enumeration over the names, known for the given subcontext.
+   * @throws NamingException
+   */
+  public NamingEnumeration listBindings(String name) throws NamingException
+  {
+    BindingIteratorHolder bi = new BindingIteratorHolder();
+    BindingListHolder bl = new BindingListHolder();
+
+    NamingContext subcontext;
+
+    if (name.length() == 0)
+      subcontext = service;
+    else
+      {
+        try
+          {
+            subcontext = (NamingContextHelper.narrow(service.resolve_str(name)));
+          }
+        catch (Exception e)
+          {
+            throw new NamingException(e.toString());
+          }
+
+      }
+
+    subcontext.list(howMany, bl, bi);
+
+    return new ListBindingsEnumeration(bl, bi, howMany, subcontext);
+  }
+
+  /**
+   * Gets the previously named object by name. If the passed name is empty, the
+   * method should return a cloned instance of this naming context.
+   *
+   * @param name
+   *          the name of the object being searched in this context
+   * @return the named object
+   * @throws NameNotFountException
+   *           if the name is not found
+   */
+  public Object lookup(Name name) throws NamingException
+  {
+    try
+      {
+        return service.resolve(toGiop(name));
+      }
+    catch (NotFound e)
+      {
+        throw new NameNotFoundException();
+      }
+    catch (InvalidName e)
+      {
+        throw new InvalidNameException();
+      }
+    catch (Exception e)
+      {
+        throw new NamingException(e.toString());
+      }
+  }
+
+  /**
+   * Gets the previously named object by name. If the passed name is empty, the
+   * method should return a cloned instance of this naming context.
+   *
+   * @param name
+   *          the name of the object being searched in this context
+   * @return the named object
+   * @throws NamingException
+   *           if the naming fails.
+   */
+  public Object lookup(String name) throws NamingException
+  {
+    try
+      {
+        return service.resolve_str(name);
+      }
+    catch (NotFound e)
+      {
+        throw new NameNotFoundException();
+      }
+    catch (InvalidName e)
+      {
+        throw new InvalidNameException();
+      }
+    catch (Exception e)
+      {
+        throw new NamingException(e.toString());
+      }
+  }
+
+  /**
+   * Not supported.
+   */
+  public Object lookupLink(Name name) throws NamingException
+  {
+    throw new OperationNotSupportedException();
+  }
+
+  /**
+   * Not supported.
+   */
+  public Object lookupLink(String name) throws NamingException
+  {
+    throw new OperationNotSupportedException();
+  }
+
+  /**
+   * Give the specified name for the specified object. Unlike bind, this method
+   * silently replaces the existing binding for this name, if one exists.
+   *
+   * @param name
+   *          the name that will be given to the object (in the scope of this
+   *          context).
+   * @param obj
+   *          the object being named.
+   * @throws InvalidAttributesException
+   *           if the object does not supply all required attributes.
+   * @throws NamingException
+   *           if the naming operation has failed due other reasons.
+   */
+  public void rebind(Name name, Object obj) throws NamingException
+  {
+    try
+      {
+        org.omg.CORBA.Object object = (org.omg.CORBA.Object) obj;
+        service.rebind(toGiop(name), object);
+      }
+    catch (ClassCastException e)
+      {
+        throw new NamingException(org.omg.CORBA.Object.class + " required ");
+      }
+    catch (InvalidName e)
+      {
+        throw new InvalidNameException();
+      }
+    catch (Exception e)
+      {
+        throw new NamingException(e.toString());
+      }
+  }
+
+  /**
+   * Give the specified name for the specified object. Unlike bind, this method
+   * silently replaces the existing binding for this name, if one exists.
+   *
+   * @param name
+   *          the name that will be given to the object (in the scope of this
+   *          context).
+   * @param obj
+   *          the object being named.
+   * @throws InvalidAttributesException
+   *           if the object does not supply all required attributes.
+   * @throws NamingException
+   *           if the naming operation has failed due other reasons.
+   */
+  public void rebind(String name, Object obj) throws NamingException
+  {
+    try
+      {
+        org.omg.CORBA.Object object = (org.omg.CORBA.Object) obj;
+        service.rebind(transformer.toName(name), object);
+      }
+    catch (ClassCastException e)
+      {
+        throw new NamingException(org.omg.CORBA.Object.class + " required ");
+      }
+    catch (InvalidName e)
+      {
+        throw new InvalidNameException();
+      }
+    catch (Exception e)
+      {
+        throw new NamingException(e.toString());
+      }
+  }
+
+  /**
+   * Renames the existing binding, removing the existing and giving the new name
+   * for the same object.
+   *
+   * @param oldName
+   *          the existing name of the known object
+   * @param newName
+   *          the new name of the same object
+   * @throws NameNotFoundException
+   *           if the oldName is unknown for this context
+   * @throws NamingException
+   *           if the naming operation has failed due other reasons.
+   */
+  public void rename(Name oldName, Name newName) throws NamingException
+  {
+    Object object = lookup(oldName);
+    unbind(oldName);
+    bind(newName, object);
+  }
+
+  /**
+   * Renames the existing binding, removing the existing and giving the new name
+   * for the same object.
+   *
+   * @param oldName
+   *          the existing name of the known object
+   * @param newName
+   *          the new name of the same object
+   * @throws NameNotFoundException
+   *           if the oldName is unknown for this context
+   * @throws NamingException
+   *           if the naming operation has failed due other reasons.
+   */
+  public void rename(String oldName, String newName) throws NamingException
+  {
+    Object object = lookup(oldName);
+    unbind(oldName);
+    bind(newName, object);
+  }
+
+  /**
+   * Removes the name - object mapping from the current context. This method
+   * returns without action if the name is not bound to an object in the
+   * terminal context, but throws {@link NameNotFoundException} if one of the
+   * intermadiate contexts does not exist.
+   *
+   * @param name
+   *          the name to be removed
+   * @throws NameNotFoundException
+   *           if one of the intermediate naming contexts does not exist. Will
+   *           not be thrown if just the terminal binding is missing.
+   * @throws NamingException
+   *           if the naming operation has failed due other reasons.
+   */
+  public void unbind(Name name) throws NamingException
+  {
+    try
+      {
+        service.unbind(toGiop(name));
+      }
+    catch (NotFound e)
+      {
+        throw new NameNotFoundException();
+      }
+    catch (CannotProceed e)
+      {
+        throw new ContextNotEmptyException();
+      }
+    catch (InvalidName e)
+      {
+        throw new InvalidNameException();
+      }
+  }
+
+  /**
+   * Removes the name - object mapping from the current context. This method
+   * returns without action if the name is not bound to an object in the
+   * terminal context, but throws {@link NameNotFoundException} if one of the
+   * intermadiate contexts does not exist.
+   *
+   * @param name
+   *          the name to be removed
+   * @throws NameNotFoundException
+   *           if one of the intermediate naming contexts does not exist. Will
+   *           not be thrown if just the terminal binding is missing.
+   * @throws NamingException
+   *           if the naming operation has failed due other reasons.
+   */
+  public void unbind(String name) throws NamingException
+  {
+    try
+      {
+        service.unbind(transformer.toName(name));
+      }
+    catch (NotFound e)
+      {
+        throw new NameNotFoundException(name);
+      }
+    catch (CannotProceed e)
+      {
+        throw new ContextNotEmptyException(name);
+      }
+    catch (InvalidName e)
+      {
+        throw new InvalidNameException(name);
+      }
+  }
+
+ /**
+   * Add new environment property to the environment of this context. Both name
+   * and value of the new property must not be null. If the property is already
+   * defined, is current value is replaced by the propVal.
+   *
+   * @param key
+   *          the name of the new property
+   * @param value
+   *          the value of the new property
+   * @return the previous value of this property or null if the property has not
+   *         been previously defined
+   * @throws NamingException
+   */
+  public Object addToEnvironment(String key, Object value)
+      throws NamingException
+  {
+    if (key == null || value == null)
+      throw new NullPointerException();
+    return properties.put(key, value);
+  }
+
+  /**
+   * Returns the environment, associated with this naming context. The returned
+   * table should never be modified by the caller. Use {@link #addToEnvironment}
+   * and {@link #removeFromEnvironment} to modify the environement, if needed.
+   *
+   * @return the table, representing the environment of this context
+   * @throws NamingException
+   */
+  public Hashtable getEnvironment() throws NamingException
+  {
+    return properties;
+  }
+
+  /**
+   * Removes the property with the given name from the environment. Returns
+   * without action if this property is not defined.
+   *
+   * @param propName
+   *          the name of the property being removed.
+   * @return the value of the property that has been removed or null if the
+   *         property was not defined.
+   * @throws NamingException
+   */
+  public Object removeFromEnvironment(String propName) throws NamingException
+  {
+    return properties.remove(propName);
+  }
+
+  /**
+   * Convert the {@link Name} into array of the name components, required to the
+   * CORBA naming service. First the string representation is obtained, then
+   * it is converted using parsing rules of the CORBA name.
+   *
+   * @param name
+   *          then name to convert
+   * @return the converted array of components.
+   */
+  public NameComponent[] toGiop(Name name) throws InvalidName
+  {
+    return transformer.toName(name.toString());
+  }
+
+  /**
+   * Get the batch size from the environment properties. The batch size is used
+   * for listing operations.
+   *
+   * @return the batch size, or some default value if not specified.
+   */
+  public int getBatchSize()
+  {
+    int batchSize = DEFAULT_BATCH_SIZE;
+    Object bs = properties.get(Context.BATCHSIZE);
+    if (bs != null)
+      {
+        try
+          {
+            int b = Integer.parseInt(bs.toString());
+            if (b >= 0)
+              batchSize = b;
+          }
+        catch (NumberFormatException e)
+          {
+            // OK, use default value.
+          }
+      }
+    return batchSize;
+  }
+
+
+}
diff --git a/libjava/classpath/gnu/javax/naming/giop/CorbalocParser.java b/libjava/classpath/gnu/javax/naming/giop/CorbalocParser.java
new file mode 100644
index 000000000..4b7883969
--- /dev/null
+++ b/libjava/classpath/gnu/javax/naming/giop/CorbalocParser.java
@@ -0,0 +1,441 @@
+/* CorbalocParser.java -- handles corbaname: urls
+   Copyright (C) 2006 Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+package gnu.javax.naming.giop;
+
+import gnu.CORBA.IOR;
+import gnu.CORBA.Minor;
+import gnu.CORBA.Unexpected;
+import gnu.CORBA.Version;
+import gnu.CORBA.NamingService.NameTransformer;
+
+import gnu.java.lang.CPStringBuilder;
+
+import java.io.File;
+import java.io.FileReader;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.io.UnsupportedEncodingException;
+import java.net.MalformedURLException;
+import java.net.URL;
+import java.net.URLDecoder;
+import java.util.StringTokenizer;
+
+import javax.naming.InvalidNameException;
+
+import org.omg.CORBA.BAD_PARAM;
+import org.omg.CORBA.DATA_CONVERSION;
+import org.omg.CORBA.ORB;
+import org.omg.CORBA.Object;
+import org.omg.CORBA.ORBPackage.InvalidName;
+
+/**
+ * Parses the alternative IOR representations into our IOR structure.
+ *
+ * TODO This parser currently supports only one address per target string. A
+ * string with the multiple addresses will be accepted, but only the last
+ * address will be taken into consideration. The fault tolerance is not yet
+ * implemented.
+ *
+ * The key string is filtered using {@link java.net.URLDecoder} that replaces
+ * the agreed escape sequences by the corresponding non alphanumeric characters.
+ *
+ * @author Audrius Meskauskas (AudriusA@Bioinformatics.org)
+ */
+public class CorbalocParser
+  extends NameTransformer
+{
+  /**
+   * The corbaloc prefix.
+   */
+  public static final String pxCORBALOC = "corbaloc";
+
+  /**
+   * The corbaname prefix.
+   */
+  public static final String pxCORBANAME = "corbaname";
+
+  /**
+   * The IOR prefix.
+   */
+  public static final String pxIOR = "ior";
+
+  /**
+   * The file:// prefix.
+   */
+  public static final String pxFILE = "file://";
+
+  /**
+   * The ftp:// prefix.
+   */
+  public static final String pxFTP = "ftp://";
+
+  /**
+   * The http:// prefix.
+   */
+  public static final String pxHTTP = "http://";
+
+  /**
+   * Marks iiop protocol.
+   */
+  public static final String IIOP = "iiop";
+
+  /**
+   * Marks rir protocol.
+   */
+  public static final String RIR = "rir";
+
+  /**
+   * The default port value, as specified in OMG documentation.
+   */
+  public static final int DEFAULT_PORT = 2809;
+
+  /**
+   * The default name.
+   */
+  public static final String DEFAULT_NAME = "NameService";
+
+  /**
+   * The string to name converter, initialized on demand.
+   */
+  static NameTransformer converter;
+
+  /**
+   * The current position.
+   */
+  int p;
+
+  /**
+   * The address being parsed, splitted into tokens.
+   */
+  String[] t;
+
+  /**
+   * Parse CORBALOC.
+   *
+   * The expected format is: <br>
+   * 1. corbaloc:[iiop][version.subversion@]:host[:port]/key <br>
+   * 2. corbaloc:rir:[/key] <br>
+   * 3. corbaname:[iiop][version.subversion@]:host[:port]/key <br>
+   * 4. corbaname:rir:[/key] <br>
+   * 5. file://[file name]<br>
+   * 6. http://[url]<br>
+   * 7. ftp://[url]<br>
+   *
+   * Protocol defaults to IOP, the object key defaults to the NameService.
+   *
+   * @param corbaloc the string to parse.
+   * @param orb the ORB, needed to create IORs and resolve rir references.
+   *
+   * @return the arrey of strings, first member being the IOR of the
+   * naming service, second member the name in the naming service.
+   */
+  public synchronized String[] corbaloc(String corbaloc,
+    ORB orb)
+    throws InvalidNameException
+  {
+    return corbaloc(corbaloc, orb, 0);
+  }
+
+  /**
+   * Parse controlling against the infinite recursion loop.
+   */
+  private String[] corbaloc(String corbaloc,
+    ORB orb, int recursion) throws InvalidNameException
+  {
+    // The used CORBA specification does not state how many times we should to
+    //redirect, but the infinite loop may be used to knock out the system.
+    // by malicious attempt.
+    if (recursion > 10)
+      throw new DATA_CONVERSION("More than 10 redirections");
+
+    if (corbaloc.startsWith(pxFILE))
+      return corbaloc(readFile(corbaloc.substring(pxFILE.length())), orb, recursion+1);
+    else if (corbaloc.startsWith(pxHTTP))
+      return corbaloc(readUrl(corbaloc), orb, recursion+1);
+    else if (corbaloc.startsWith(pxFTP))
+      return corbaloc(readUrl(corbaloc), orb, recursion+1);
+
+    // The version numbers with default values.
+    int major = 1;
+    int minor = 0;
+
+    // The host address.
+    String host;
+
+    // The port.
+    int port = DEFAULT_PORT;
+
+    // The object key as string.
+    String key;
+
+    StringTokenizer st = new StringTokenizer(corbaloc, ":@/.,#", true);
+
+    t = new String[st.countTokens()];
+
+    for (int i = 0; i < t.length; i++)
+      {
+        t[i] = st.nextToken();
+      }
+
+    p = 0;
+
+    if (!t[p].startsWith(pxCORBANAME))
+      throw new InvalidNameException(corbaloc+" must start with "+pxCORBANAME);
+
+    p++;
+
+    if (!t[p++].equals(":"))
+      throw new BAD_PARAM("Syntax (':' expected after name prefix)");
+
+    // Check for rir:
+    if (t[p].equals(RIR))
+      {
+        p++;
+        if (!t[p++].equals(":"))
+          throw new BAD_PARAM("':' expected after 'rir'");
+
+        key = readKey("/");
+
+        Object object;
+        try
+          {
+            object = orb.resolve_initial_references(key);
+            return resolve(orb.object_to_string(object));
+          }
+        catch (InvalidName e)
+          {
+            throw new BAD_PARAM("Unknown initial reference '" + key + "'");
+          }
+      }
+    else
+    // Check for iiop.
+    if (t[p].equals(IIOP) || t[p].equals(":"))
+      {
+        IOR ior = new IOR();
+
+        Addresses: do
+          { // Read addresses.
+            if (t[p].equals(":"))
+              {
+                p++;
+              }
+            else
+              {
+                p++;
+                if (!t[p++].equals(":"))
+                  throw new BAD_PARAM("':' expected after 'iiop'");
+                // Check if version is present.
+                if (t[p + 1].equals("."))
+                  if (t[p + 3].equals("@"))
+                    {
+                      // Version info present.
+                      try
+                        {
+                          major = Integer.parseInt(t[p++]);
+                        }
+                      catch (NumberFormatException e)
+                        {
+                          throw new BAD_PARAM("Major version number '"
+                            + t[p - 1] + "'");
+                        }
+                      p++; // '.' at this point.
+                      try
+                        {
+                          minor = Integer.parseInt(t[p++]);
+                        }
+                      catch (NumberFormatException e)
+                        {
+                          throw new BAD_PARAM("Major version number '"
+                            + t[p - 1] + "'");
+                        }
+                      p++; // '@' at this point.
+                    }
+              }
+
+            ior.Internet.version = new Version(major, minor);
+
+            // Then host data goes till '/' or ':'.
+            CPStringBuilder bhost = new CPStringBuilder(corbaloc.length());
+            while (!t[p].equals(":") && !t[p].equals("/") && !t[p].equals(","))
+              bhost.append(t[p++]);
+
+            host = bhost.toString();
+
+            ior.Internet.host = host;
+
+            if (t[p].equals(":"))
+              {
+                // Port specified.
+                p++;
+                try
+                  {
+                    port = Integer.parseInt(t[p++]);
+                  }
+                catch (NumberFormatException e)
+                  {
+                    throw new BAD_PARAM("Invalid port '" + t[p - 1] + "'");
+                  }
+              }
+
+            ior.Internet.port = port;
+
+            // Id is not listed.
+            ior.Id = "";
+
+            if (t[p].equals(","))
+              p++;
+            else
+              break Addresses;
+          }
+        while (true);
+
+        key = readKey("/");
+        ior.key = key.getBytes();
+
+        return resolve(ior.toStringifiedReference());
+      }
+
+    else
+      throw new InvalidNameException("Unsupported protocol '" + t[p] +
+                                     "' (iiop expected)");
+  }
+
+  /**
+   * Read IOR from the file in the local file system.
+   */
+  String readFile(String file)
+  {
+    File f = new File(file);
+    if (!f.exists())
+      {
+        DATA_CONVERSION err = new DATA_CONVERSION(f.getAbsolutePath()
+          + " does not exist.");
+        err.minor = Minor.Missing_IOR;
+      }
+    try
+      {
+        char[] c = new char[(int) f.length()];
+        FileReader fr = new FileReader(f);
+        fr.read(c);
+        fr.close();
+        return new String(c).trim();
+      }
+    catch (IOException ex)
+      {
+        DATA_CONVERSION d = new DATA_CONVERSION();
+        d.initCause(ex);
+        d.minor = Minor.Missing_IOR;
+        throw (d);
+      }
+  }
+
+  /**
+   * Read IOR from the remote URL.
+   */
+  String readUrl(String url)
+  {
+    URL u;
+    try
+      {
+        u = new URL(url);
+      }
+    catch (MalformedURLException mex)
+      {
+        throw new BAD_PARAM("Malformed URL: '" + url + "'");
+      }
+
+    try
+      {
+        InputStreamReader r = new InputStreamReader(u.openStream());
+
+        CPStringBuilder b = new CPStringBuilder();
+        int c;
+
+        while ((c = r.read()) > 0)
+          b.append((char) c);
+
+        return b.toString().trim();
+      }
+    catch (Exception exc)
+      {
+        DATA_CONVERSION d = new DATA_CONVERSION("Reading " + url + " failed.");
+        d.minor = Minor.Missing_IOR;
+        throw d;
+      }
+  }
+
+  private String[] resolve(String nsIor)
+  {
+    String [] n = new String[2];
+    n[0] = nsIor;
+    n[1] = readKey("#");
+    return n;
+  }
+
+  private String readKey(String delimiter)
+    throws BAD_PARAM
+  {
+    if (p < t.length)
+      if (!t[p].equals(delimiter))
+        {
+          if (t[p].equals("#"))
+            return DEFAULT_NAME;
+          else
+            throw new BAD_PARAM("'" + delimiter + "String' expected '" + t[p]
+              + "' found");
+        }
+
+    CPStringBuilder bKey = new CPStringBuilder();
+    p++;
+
+    while (p < t.length && !t[p].equals("#"))
+      bKey.append(t[p++]);
+
+    if (bKey.length() == 0)
+      return DEFAULT_NAME;
+
+    try
+      {
+        return URLDecoder.decode(bKey.toString(), "UTF-8");
+      }
+    catch (UnsupportedEncodingException e)
+      {
+        throw new Unexpected("URLDecoder does not support UTF-8", e);
+      }
+  }
+}
diff --git a/libjava/classpath/gnu/javax/naming/giop/GiopNamingEnumeration.java b/libjava/classpath/gnu/javax/naming/giop/GiopNamingEnumeration.java
new file mode 100644
index 000000000..c2de75b38
--- /dev/null
+++ b/libjava/classpath/gnu/javax/naming/giop/GiopNamingEnumeration.java
@@ -0,0 +1,187 @@
+/* GiopNamingEnumeration.java -- handles corbaname: urls
+   Copyright (C) 2006 Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+
+package gnu.javax.naming.giop;
+
+import java.util.NoSuchElementException;
+
+import javax.naming.NamingEnumeration;
+import javax.naming.NamingException;
+
+import org.omg.CosNaming.Binding;
+import org.omg.CosNaming.BindingIterator;
+import org.omg.CosNaming.BindingIteratorHolder;
+import org.omg.CosNaming.BindingListHolder;
+
+/**
+ * Iterates over name class pairs, obtaining values first from the binding list
+ * and then from the binding iterator.
+ *
+ * @author Audrius Meskauskas
+ */
+public abstract class GiopNamingEnumeration implements NamingEnumeration
+{
+  /**
+   * The array of bindings, returned at once.
+   */
+  Binding[] list;
+
+  /**
+   * The binding iterator to obtain the subsequent bindings. May be null,
+   * if all values are stored in the <code>list</code>.
+   */
+  BindingIterator iterator;
+
+  /**
+   * The batch size.
+   */
+  int batch;
+
+  /**
+   * The position of the element in the binding list, that must be returned
+   * during the subsequent call of the next(). If this field is grater or equal
+   * to the lenght of the list, the subsequent values must be requested from the
+   * iterator.
+   */
+  int p;
+
+  GiopNamingEnumeration(BindingListHolder bh, BindingIteratorHolder bih, int batchSize)
+  {
+    list = bh.value;
+    iterator = bih.value;
+    batch = batchSize;
+  }
+
+  /**
+   * Convert from the CORBA binding into that this enumeration should return.
+   *
+   * @param binding
+   *          the binding to convert
+   * @return the value, that must be returned by the {@link #next()}.
+   */
+  public abstract Object convert(Binding binding);
+
+  public void close() throws NamingException
+  {
+    if (iterator != null)
+      {
+        iterator.destroy();
+        iterator = null;
+      }
+  }
+
+  /**
+   * Checks if there are more elements to return.
+   *
+   * @throws NamingException
+   *           never
+   */
+  public boolean hasMore() throws NamingException
+  {
+    return hasMoreElements();
+  }
+
+  /**
+   * Returns the next element.
+   *
+   * @throws NamingException
+   *           never
+   */
+  public Object next() throws NamingException
+  {
+    return nextElement();
+  }
+
+  /**
+   * Checks if there are more elements to return.
+   */
+  public boolean hasMoreElements()
+  {
+    if (p < 0)
+      return false;
+    else if (p < list.length)
+      return true;
+    else
+      return getMore();
+  }
+
+  /**
+   * Returns the next element.
+   */
+  public Object nextElement()
+  {
+    if (p < 0)
+      throw new NoSuchElementException();
+    else if (p < list.length)
+      return convert(list[p++]);
+    else if (getMore())
+      // getMore updates p
+      return convert(list[p++]);
+    else
+      throw new NoSuchElementException();
+  }
+
+  /**
+   * Tries to obtain more elements, return true on success. Updates the fields
+   * accordingly.
+   */
+  boolean getMore()
+  {
+    if (iterator != null)
+      {
+        BindingListHolder holder = new BindingListHolder();
+        boolean rt = iterator.next_n(batch, holder);
+        if (rt)
+          {
+            // The new pack of the bindings arrived.
+            p = 0;
+            list = holder.value;
+            return true;
+          }
+        else
+          {
+            iterator.destroy();
+            iterator = null;
+            p = -1;
+            return false;
+          }
+      }
+    else
+      return false;
+  }
+}
diff --git a/libjava/classpath/gnu/javax/naming/giop/GiopNamingServiceFactory.java b/libjava/classpath/gnu/javax/naming/giop/GiopNamingServiceFactory.java
new file mode 100644
index 000000000..e8aac3b65
--- /dev/null
+++ b/libjava/classpath/gnu/javax/naming/giop/GiopNamingServiceFactory.java
@@ -0,0 +1,179 @@
+/* GiopNamingServiceFactory.java -- handles corbaname: urls
+   Copyright (C) 2006 Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+
+package gnu.javax.naming.giop;
+
+import gnu.CORBA.OrbFunctional;
+
+import gnu.java.lang.CPStringBuilder;
+
+import java.util.Enumeration;
+import java.util.Hashtable;
+import java.util.Iterator;
+import java.util.Map;
+import java.util.Properties;
+import java.util.TreeMap;
+
+import javax.naming.Context;
+import javax.naming.Name;
+
+import org.omg.CORBA.ORB;
+
+/**
+ * The context factory to represent the corbaname: style urls. Such URL states
+ * that the CORBA naming service exists on the given host. This service can
+ * return the required object, finding it by the given name. The names are
+ * parsed using the specification of the corbaname urls. Being the naming
+ * service, the returned context supports creating the subcontexts, forwarding
+ * this task to the existing naming service.
+ *
+ * @author Audrius Meskauskas (audriusa@Bioinformatics.org)
+ */
+public class GiopNamingServiceFactory
+{
+  /**
+   * The default naming service provider. It is assumed, that the naming service
+   * is running on the port 900 of the local host, using the GIOP version 1.2
+   */
+  public static final String DEFAULT_PROVIDER =
+    "corbaloc:iiop:1.2@127.0.0.1:900/NameService";
+
+  /**
+   * The table of all instantiated ORB's that are found by they ORB
+   * properties signatures. If all ORB related properties are the same,
+   * the ORB's are shared.
+   */
+  public static Hashtable orbs = new Hashtable();
+
+
+  /**
+   * Create a new instance of the corbaname URL context.
+   */
+  public Object getObjectInstance(Object refObj, Name name, Context nameCtx,
+                                  Hashtable environment)
+  {
+    String provider = (String) environment.get(Context.PROVIDER_URL);
+    if (provider == null)
+      provider = DEFAULT_PROVIDER;
+
+    String orbSignature = getOrbSignature(environment);
+
+    ORB orb;
+    synchronized (orbs)
+      {
+        orb = (ORB) orbs.get(orbSignature);
+        if (orb == null)
+          {
+            Properties props = new Properties();
+            props.putAll(environment);
+            orb = ORB.init(new String[0], props);
+            orbs.put(orbSignature, orb);
+            final ORB runIt = orb;
+            new Thread()
+            {
+              public void run()
+              {
+                runIt.run();
+              }
+            }.start();
+          }
+      }
+
+    return new GiopNamingServiceURLContext(environment, this, orb);
+  }
+
+  /**
+   * Check if this ORB is still in use (maybe it is time to shutdown it). This
+   * method only works when the Classpath CORBA implementation is used
+   * (otherwise it return without action). The method is called from the close()
+   * method of the created context.
+   *
+   * @param orb
+   *          the ORB that maybe is no longer referenced.
+   */
+  public void checkIfReferenced(ORB orb)
+  {
+    synchronized (orbs)
+      {
+        // We can only do this with the Classpath implementation.
+        if (orb instanceof OrbFunctional)
+          {
+            OrbFunctional cOrb = (OrbFunctional) orb;
+            // If there are no connected objects, we can destroy the orb.
+            if (cOrb.countConnectedObjects() == 0)
+              {
+                cOrb.shutdown(false);
+                cOrb.destroy();
+
+                Enumeration keys = orbs.keys();
+                Object key;
+                Remove: while (keys.hasMoreElements())
+                  {
+                    key = keys.nextElement();
+                    if (orbs.get(key) == orb)
+                      {
+                        orbs.remove(key);
+                        break Remove;
+                      }
+                  }
+              }
+          }
+      }
+  }
+
+  /**
+   * Get all properties.
+   */
+  public String getOrbSignature(Map props)
+  {
+     TreeMap map = new TreeMap();
+     map.putAll(props);
+     CPStringBuilder b = new CPStringBuilder(50*props.size());
+
+     Iterator iter = map.entrySet().iterator();
+     Map.Entry m;
+     while (iter.hasNext())
+       {
+         m = (Map.Entry) iter.next();
+         b.append(m.getKey());
+         b.append('=');
+         b.append(m.getValue());
+       }
+     return b.toString();
+  }
+}
diff --git a/libjava/classpath/gnu/javax/naming/giop/GiopNamingServiceURLContext.java b/libjava/classpath/gnu/javax/naming/giop/GiopNamingServiceURLContext.java
new file mode 100644
index 000000000..0d2e290b4
--- /dev/null
+++ b/libjava/classpath/gnu/javax/naming/giop/GiopNamingServiceURLContext.java
@@ -0,0 +1,840 @@
+/* GiopNamingServiceURLContext.java -- handles corbaname: urls
+   Copyright (C) 2006 Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+
+package gnu.javax.naming.giop;
+
+import gnu.CORBA.NamingService.Ext;
+import gnu.CORBA.NamingService.NameTransformer;
+
+import java.util.Hashtable;
+
+import javax.naming.Binding;
+import javax.naming.Context;
+import javax.naming.ContextNotEmptyException;
+import javax.naming.InvalidNameException;
+import javax.naming.Name;
+import javax.naming.NameAlreadyBoundException;
+import javax.naming.NameClassPair;
+import javax.naming.NameNotFoundException;
+import javax.naming.NameParser;
+import javax.naming.NamingEnumeration;
+import javax.naming.NamingException;
+import javax.naming.OperationNotSupportedException;
+import javax.naming.directory.InvalidAttributesException;
+
+import org.omg.CORBA.ORB;
+import org.omg.CORBA.portable.Delegate;
+import org.omg.CORBA.portable.ObjectImpl;
+import org.omg.CosNaming.BindingIteratorHolder;
+import org.omg.CosNaming.BindingListHolder;
+import org.omg.CosNaming.NameComponent;
+import org.omg.CosNaming.NamingContext;
+import org.omg.CosNaming.NamingContextExt;
+import org.omg.CosNaming.NamingContextExtHelper;
+import org.omg.CosNaming.NamingContextHelper;
+import org.omg.CosNaming._NamingContextExtStub;
+import org.omg.CosNaming._NamingContextStub;
+import org.omg.CosNaming.NamingContextPackage.AlreadyBound;
+import org.omg.CosNaming.NamingContextPackage.CannotProceed;
+import org.omg.CosNaming.NamingContextPackage.InvalidName;
+import org.omg.CosNaming.NamingContextPackage.NotFound;
+
+/**
+ * The context to represent the corba naming service. Being the naming service,
+ * the returned context supports creating the subcontexts, forwarding this task
+ * to the existing naming service. When listing bindings, it uses the
+ * {@link Context#BATCHSIZE} property to determine, how many bindings should
+ * be returned at once (the process is transparend)
+ *
+ * @author Audrius Meskauskas (audriusa@Bioinformatics.org)
+ */
+public class GiopNamingServiceURLContext extends CorbalocParser implements
+    Context
+{
+  /**
+   * This number of bindings will be requested from the naming server at once,
+   * while the subsequent bindings will be requested via binding iterator one by
+   * one. Use {@link Context#BATCHSIZE} to override the value of this constant.
+   */
+  public int DEFAULT_BATCH_SIZE = 20;
+
+  /**
+   * The object request broker, used to access the naming service. This field
+   * is only initialised when the context is constructed from the URL.
+   */
+  ORB orb;
+
+  /**
+   * The properties.
+   */
+  Hashtable properties;
+
+  /**
+   * The parent factory.
+   */
+  GiopNamingServiceFactory factory;
+
+  /**
+   * The name transformer to obtain the name from its string representation. The
+   * to_name method of the naming service is avoided as it may be remote and
+   * hence expensive. The conversion rules are standard and cannot be service
+   * specific.
+   */
+  static NameTransformer transformer = new NameTransformer();
+
+  /**
+   * The batch size for list operations - how many to return at once.
+   */
+  public final int howMany;
+
+  /**
+   * Creates a new naming context that uses naming service, represented by the
+   * given CORBA object.
+   *
+   * @param props
+   *          the environment table.
+   * @param aFactory
+   *          parent factory. This reference is used during cleanup.
+   * @param anOrb
+   *          the associated ORB. This reference is used during cleanup.
+   */
+  public GiopNamingServiceURLContext(Hashtable props,
+                                     GiopNamingServiceFactory aFactory,
+                                     ORB anOrb)
+  {
+    factory = aFactory;
+    orb = anOrb;
+
+    properties = props;
+    howMany = getBatchSize();
+  }
+
+  public NamingContextExt getService(String address)
+  {
+    org.omg.CORBA.Object nsObject = orb.string_to_object(address);
+    Delegate delegate = ((ObjectImpl) nsObject)._get_delegate();
+
+    // If the IOR provides the IDL ID, we can check if our name
+    // service is old NamingContext or new NamingContextExt.
+    // Not all forms of the URL always provide the IDL id.
+    if (!nsObject._is_a(NamingContextExtHelper.id())
+        && nsObject._is_a(NamingContextHelper.id()))
+      {
+        // We are surely working with the old version.
+        _NamingContextStub stub = new _NamingContextStub();
+        stub._set_delegate(delegate);
+        // The Ext object will add the necessary extensions.
+        return new Ext(stub);
+      }
+    else
+      {
+        // We expecte the service to be the NamingContextExt (this is true
+        // for both Sun's and our implementations). There is no easy way
+        // to check the version.
+        _NamingContextExtStub stub = new _NamingContextExtStub();
+        stub._set_delegate(delegate);
+        return stub;
+      }
+  }
+
+  /**
+   * Split the corbaname name into the address of the naming service (first
+   * part) and the name of the object in the naming service (second part)
+   */
+  public String[] split(String corbaloc) throws InvalidNameException
+  {
+    if (corbaloc.endsWith("#"))
+      corbaloc = corbaloc.substring(0, corbaloc.length() - 1);
+
+    // No name part - parse as corbaname.
+    if (corbaloc.indexOf('#') < 0)
+      {
+        if (!corbaloc.regionMatches(true, 0, pxCORBANAME, 0,
+                                    pxCORBANAME.length()))
+          throw new InvalidNameException(corbaloc + " must start with "
+                                         + pxCORBANAME);
+        corbaloc = pxCORBALOC + corbaloc.substring(pxCORBANAME.length());
+        return new String[] { corbaloc, "" };
+      }
+
+    return corbaloc(corbaloc, orb);
+  }
+
+  /**
+   * Give the specified name for the specified object. The passed name must not
+   * be already bound to some other object. The components of the name are
+   * mapped into the components of the CORBA name.
+   *
+   * @param name
+   *          the name that will be given to the object (in the scope of this
+   *          context).
+   * @param obj
+   *          the object being named.
+   * @throws NameAlreadyBoundException
+   *           if this name is already used to name some object.
+   * @throws InvalidAttributesException
+   *           if the object does not supply all required attributes.
+   * @throws NamingException
+   *           if the naming operation has failed due other reasons.
+   */
+  public void bind(Name name, Object obj) throws NamingException
+  {
+    bind(name.toString(), obj);
+  }
+
+  /**
+   * Give the specified name for the specified object. The passed name must not
+   * be already bound to some other object.
+   *
+   * @param name
+   *          the name that will be given to the object (in the scope of this
+   *          context).
+   * @param obj
+   *          the object being named.
+   * @throws NameAlreadyBoundException
+   *           if this name is already used to name some object.
+   * @throws InvalidAttributesException
+   *           if the object does not supply all required attributes.
+   * @throws NamingException
+   *           if the naming operation has failed due other reasons.
+   */
+  public void bind(String name, Object obj) throws NamingException
+  {
+    try
+      {
+        String[] n = split(name);
+        org.omg.CORBA.Object object = (org.omg.CORBA.Object) obj;
+        getService(n[0]).bind(transformer.toName(n[1]), object);
+      }
+    catch (ClassCastException e)
+      {
+        throw new NamingException(org.omg.CORBA.Object.class + " required ");
+      }
+    catch (InvalidName e)
+      {
+        throw new InvalidNameException();
+      }
+    catch (AlreadyBound e)
+      {
+        throw new NameAlreadyBoundException();
+      }
+    catch (Exception e)
+      {
+        throw new NamingException(e.toString());
+      }
+  }
+
+  /**
+   * Releases all resources, associated with this context. The close() method
+   * can be called several times, but after it has been once invoked, it is not
+   * allowed to call any other method of this context. This method destroys
+   * the ORB, if we have one.
+   *
+   * @throws NamingException
+   */
+  public void close() throws NamingException
+  {
+    if (orb != null && factory != null)
+      {
+        factory.checkIfReferenced(orb);
+      }
+  }
+
+  /**
+   * Not supported.
+   */
+  public Name composeName(Name name, Name prefix) throws NamingException
+  {
+    throw new OperationNotSupportedException();
+  }
+
+  /**
+   * Not supported
+   */
+  public String composeName(String name1, String name2) throws NamingException
+  {
+    throw new OperationNotSupportedException();
+  }
+
+  /**
+   * Creates the new naming subcontext and binds it to the current (this)
+   * context. The returned object will wrap around the newly created CORBA
+   * subcontext
+   *
+   * @param subContext
+   *          the name of the new context being created
+   * @return the newly created context, bound to the instance of the context on
+   *         that the method has been called
+   * @throws NameAlreadyBoundException
+   *           if this name is already bound
+   * @throws InvalidAttributesException
+   *           if the creation of the new context requires the missing mandatory
+   *           attributes
+   * @throws NamingException
+   */
+  public Context createSubcontext(Name subContext) throws NamingException
+  {
+    return createSubcontext(subContext.toString());
+  }
+
+  /**
+   * Creates the new naming subcontext and binds it to the current (this)
+   * context. The returned object will wrap around the newly created CORBA
+   * subcontext
+   *
+   * @param subContext
+   *          the name of the new context being created
+   * @return the newly created context, bound to the instance of the context on
+   *         that the method has been called
+   * @throws NameAlreadyBoundException
+   *           if this name is already bound
+   * @throws InvalidAttributesException
+   *           if the creation of the new context requires the missing mandatory
+   *           attributes
+   * @throws NamingException
+   */
+  public Context createSubcontext(String subContext) throws NamingException
+  {
+    try
+      {
+        String[] n = split(subContext);
+        org.omg.CORBA.Object subcontext = getService(n[0]).bind_new_context(
+                                            transformer.toName(n[1]));
+        Hashtable clonedProps = new Hashtable();
+        clonedProps.putAll(properties);
+
+        // Nulls are passed both for orb and factory, as the child contexts
+        // need not to do any cleanup.
+        return new ContextContinuation(subcontext, clonedProps, null, null);
+      }
+    catch (AlreadyBound e)
+      {
+        throw new NameAlreadyBoundException(subContext);
+      }
+    catch (InvalidName e)
+      {
+        throw new InvalidNameException(subContext);
+      }
+    catch (Exception ex)
+      {
+        throw new NamingException(ex.toString());
+      }
+  }
+
+  /**
+   * Removes the naming subcontext from this naming context. Returns without
+   * action if such subcontext does not exist. The context being destroyed must
+   * be empty.
+   *
+   * @param subContext
+   *          the name of the subcontext beig removed.
+   * @throws ContextNotEmptyException
+   *           if the named context is not empty.
+   * @throws NamingException
+   */
+  public void destroySubcontext(Name subContext) throws NamingException
+  {
+    unbind(subContext);
+  }
+
+  /**
+   * Removes the naming subcontext from this naming context. Returns without
+   * action if such subcontext does not exist. The context being destroyed must
+   * be empty.
+   *
+   * @param subContext
+   *          the name of the subcontext beig removed.
+   * @throws ContextNotEmptyException
+   *           if the named context is not empty.
+   * @throws NamingException
+   */
+  public void destroySubcontext(String subContext) throws NamingException
+  {
+    unbind(subContext);
+  }
+
+  /**
+   * Returs the empty string.
+   */
+  public String getNameInNamespace() throws NamingException
+  {
+    return "";
+  }
+
+  /**
+   * Not supported.
+   */
+  public NameParser getNameParser(Name name) throws NamingException
+  {
+    throw new UnsupportedOperationException();
+  }
+
+  /**
+   * Not supported.
+   */
+  public NameParser getNameParser(String name) throws NamingException
+  {
+    throw new UnsupportedOperationException();
+  }
+
+  /**
+   * Creates and returns the enumeration over the name bindings that are present
+   * the given subcontext. The enumeration elements have the type of
+   * {@link NameClassPair}, providing also information about the class of the
+   * bound object. The behaviour in the case if the bindings are added or
+   * removed later is not defined. The contents of the subcontexts are not
+   * included.
+   *
+   * @param name
+   *          the name of the subcontext
+   * @return the enumeration over the names, known for the given subcontext.
+   * @throws NamingException
+   */
+  public NamingEnumeration list(Name name) throws NamingException
+  {
+    return list(name.toString());
+  }
+
+  /**
+   * Creates and returns the enumeration over the name bindings that are present
+   * the given subcontext. The enumeration elements have the type of
+   * {@link NameClassPair}, providing also information about the class of the
+   * bound object. The behaviour in the case if the bindings are added or
+   * removed later is not defined. The contents of the subcontexts are not
+   * included.
+   *
+   * @param name
+   *          the name of the subcontext
+   * @return the enumeration over the names, known for the given subcontext.
+   * @throws NamingException
+   */
+  public NamingEnumeration list(String name) throws NamingException
+  {
+    BindingIteratorHolder bi = new BindingIteratorHolder();
+    BindingListHolder bl = new BindingListHolder();
+
+    NamingContext subcontext;
+
+    String [] n = split(name);
+    NamingContextExt service = getService(n[0]);
+
+    if (n[1].length() == 0)
+      subcontext = service;
+    else
+      {
+        try
+          {
+            subcontext = (NamingContextHelper.narrow(service.resolve_str(n[1])));
+          }
+        catch (Exception e)
+          {
+            throw new NamingException(e.toString());
+          }
+
+      }
+
+    subcontext.list(howMany, bl, bi);
+
+    return new ListEnumeration(bl, bi, howMany);
+  }
+
+  /**
+   * Creates and returns the enumeration over the name - object bindings that
+   * are present the given subcontext. The enumeration elements have the type of
+   * {@link Binding}, providing also information about the class of the bound
+   * object. The behaviour in the case if the bindings are added or removed
+   * later is not defined. The contents of the subcontexts are not included.
+   *
+   * @param name
+   *          the name of the subcontext
+   * @return the enumeration over the names, known for the given subcontext.
+   * @throws NamingException
+   */
+  public NamingEnumeration listBindings(Name name) throws NamingException
+  {
+    return listBindings(name.toString());
+  }
+
+  /**
+   * Creates and returns the enumeration over the name - object bindings that
+   * are present the given subcontext. The enumeration elements have the type of
+   * {@link Binding}, providing also information about the class of the bound
+   * object. The behaviour in the case if the bindings are added or removed
+   * later is not defined. The contents of the subcontexts are not included.
+   *
+   * @param name
+   *          the name of the subcontext
+   * @return the enumeration over the names, known for the given subcontext.
+   * @throws NamingException
+   */
+  public NamingEnumeration listBindings(String name) throws NamingException
+  {
+    BindingIteratorHolder bi = new BindingIteratorHolder();
+    BindingListHolder bl = new BindingListHolder();
+
+    NamingContext subcontext;
+
+    String [] n = split(name);
+    NamingContextExt service = getService(n[0]);
+
+    if (n[1].length() == 0)
+      subcontext = service;
+    else
+      {
+        try
+          {
+            subcontext = (NamingContextHelper.narrow(service.resolve_str(n[1])));
+          }
+        catch (Exception e)
+          {
+            throw new NamingException(e.toString());
+          }
+
+      }
+
+    subcontext.list(howMany, bl, bi);
+
+    return new ListBindingsEnumeration(bl, bi, howMany, subcontext);
+  }
+
+  /**
+   * Gets the previously named object by name. If the passed name is empty, the
+   * method should return a cloned instance of this naming context.
+   *
+   * @param name
+   *          the name of the object being searched in this context
+   * @return the named object
+   * @throws NameNotFoundException
+   *           if the name is not found
+   */
+  public Object lookup(Name name) throws NamingException
+  {
+    return lookup(name.toString());
+  }
+
+  /**
+   * Gets the previously named object by name. If the passed name is empty, the
+   * method should return a cloned instance of this naming context.
+   *
+   * @param name
+   *          the name of the object being searched in this context
+   * @return the named object
+   * @throws NamingException
+   *           if the naming fails.
+   */
+  public Object lookup(String name) throws NamingException
+  {
+    try
+      {
+        String [] n = split(name);
+        NamingContextExt service = getService(n[0]);
+        return service.resolve_str(n[1]);
+      }
+    catch (NotFound e)
+      {
+        throw new NameNotFoundException();
+      }
+    catch (InvalidName e)
+      {
+        throw new InvalidNameException();
+      }
+    catch (Exception e)
+      {
+        throw new NamingException(e.toString());
+      }
+  }
+
+  /**
+   * Not supported.
+   */
+  public Object lookupLink(Name name) throws NamingException
+  {
+    throw new OperationNotSupportedException();
+  }
+
+  /**
+   * Not supported.
+   */
+  public Object lookupLink(String name) throws NamingException
+  {
+    throw new OperationNotSupportedException();
+  }
+
+  /**
+   * Give the specified name for the specified object. Unlike bind, this method
+   * silently replaces the existing binding for this name, if one exists.
+   *
+   * @param name
+   *          the name that will be given to the object (in the scope of this
+   *          context).
+   * @param obj
+   *          the object being named.
+   * @throws InvalidAttributesException
+   *           if the object does not supply all required attributes.
+   * @throws NamingException
+   *           if the naming operation has failed due other reasons.
+   */
+  public void rebind(Name name, Object obj) throws NamingException
+  {
+    rebind(name.toString(), obj);
+  }
+
+  /**
+   * Give the specified name for the specified object. Unlike bind, this method
+   * silently replaces the existing binding for this name, if one exists.
+   *
+   * @param name
+   *          the name that will be given to the object (in the scope of this
+   *          context).
+   * @param obj
+   *          the object being named.
+   * @throws InvalidAttributesException
+   *           if the object does not supply all required attributes.
+   * @throws NamingException
+   *           if the naming operation has failed due other reasons.
+   */
+  public void rebind(String name, Object obj) throws NamingException
+  {
+    try
+      {
+        String[] n = split(name);
+        NamingContextExt service = getService(n[0]);
+
+        org.omg.CORBA.Object object = (org.omg.CORBA.Object) obj;
+        service.rebind(transformer.toName(n[1]), object);
+      }
+    catch (ClassCastException e)
+      {
+        throw new NamingException(org.omg.CORBA.Object.class + " required ");
+      }
+    catch (InvalidName e)
+      {
+        throw new InvalidNameException();
+      }
+    catch (Exception e)
+      {
+        throw new NamingException(e.toString());
+      }
+  }
+
+  /**
+   * Renames the existing binding, removing the existing and giving the new name
+   * for the same object.
+   *
+   * @param oldName
+   *          the existing name of the known object
+   * @param newName
+   *          the new name of the same object
+   * @throws NameNotFoundException
+   *           if the oldName is unknown for this context
+   * @throws NamingException
+   *           if the naming operation has failed due other reasons.
+   */
+  public void rename(Name oldName, Name newName) throws NamingException
+  {
+    Object object = lookup(oldName);
+    unbind(oldName);
+    bind(newName, object);
+  }
+
+  /**
+   * Renames the existing binding, removing the existing and giving the new name
+   * for the same object.
+   *
+   * @param oldName
+   *          the existing name of the known object
+   * @param newName
+   *          the new name of the same object
+   * @throws NameNotFoundException
+   *           if the oldName is unknown for this context
+   * @throws NamingException
+   *           if the naming operation has failed due other reasons.
+   */
+  public void rename(String oldName, String newName) throws NamingException
+  {
+    Object object = lookup(oldName);
+    unbind(oldName);
+    bind(newName, object);
+  }
+
+  /**
+   * Removes the name - object mapping from the current context. This method
+   * returns without action if the name is not bound to an object in the
+   * terminal context, but throws {@link NameNotFoundException} if one of the
+   * intermadiate contexts does not exist.
+   *
+   * @param name
+   *          the name to be removed
+   * @throws NameNotFoundException
+   *           if one of the intermediate naming contexts does not exist. Will
+   *           not be thrown if just the terminal binding is missing.
+   * @throws NamingException
+   *           if the naming operation has failed due other reasons.
+   */
+  public void unbind(Name name) throws NamingException
+  {
+    unbind(name.toString());
+  }
+
+  /**
+   * Removes the name - object mapping from the current context. This method
+   * returns without action if the name is not bound to an object in the
+   * terminal context, but throws {@link NameNotFoundException} if one of the
+   * intermadiate contexts does not exist.
+   *
+   * @param name
+   *          the name to be removed
+   * @throws NameNotFoundException
+   *           if one of the intermediate naming contexts does not exist. Will
+   *           not be thrown if just the terminal binding is missing.
+   * @throws NamingException
+   *           if the naming operation has failed due other reasons.
+   */
+  public void unbind(String name) throws NamingException
+  {
+    try
+      {
+        String[] n = split(name);
+        NamingContextExt service = getService(n[0]);
+
+        service.unbind(transformer.toName(n[1]));
+      }
+    catch (NotFound e)
+      {
+        throw new NameNotFoundException(name);
+      }
+    catch (CannotProceed e)
+      {
+        throw new ContextNotEmptyException(name);
+      }
+    catch (InvalidName e)
+      {
+        throw new InvalidNameException(name);
+      }
+  }
+
+  /**
+   * Add new environment property to the environment of this context. Both name
+   * and value of the new property must not be null. If the property is already
+   * defined, is current value is replaced by the propVal.
+   *
+   * @param key
+   *          the name of the new property
+   * @param value
+   *          the value of the new property
+   * @return the previous value of this property or null if the property has not
+   *         been previously defined
+   * @throws NamingException
+   */
+  public Object addToEnvironment(String key, Object value)
+      throws NamingException
+  {
+    if (key == null || value == null)
+      throw new NullPointerException();
+    return properties.put(key, value);
+  }
+
+  /**
+   * Returns the environment, associated with this naming context. The returned
+   * table should never be modified by the caller. Use {@link #addToEnvironment}
+   * and {@link #removeFromEnvironment} to modify the environement, if needed.
+   *
+   * @return the table, representing the environment of this context
+   * @throws NamingException
+   */
+  public Hashtable getEnvironment() throws NamingException
+  {
+    return properties;
+  }
+
+  /**
+   * Removes the property with the given name from the environment. Returns
+   * without action if this property is not defined.
+   *
+   * @param propName
+   *          the name of the property being removed.
+   * @return the value of the property that has been removed or null if the
+   *         property was not defined.
+   * @throws NamingException
+   */
+  public Object removeFromEnvironment(String propName) throws NamingException
+  {
+    return properties.remove(propName);
+  }
+
+  /**
+   * Convert the {@link Name} into array of the name components, required to the
+   * CORBA naming service. First the string representation is obtained, then
+   * it is converted using parsing rules of the CORBA name.
+   *
+   * @param name
+   *          then name to convert
+   * @return the converted array of components.
+   */
+  public NameComponent[] toGiop(Name name) throws InvalidName
+  {
+    return transformer.toName(name.toString());
+  }
+
+  /**
+   * Get the batch size from the environment properties. The batch size is used
+   * for listing operations.
+   *
+   * @return the batch size, or some default value if not specified.
+   */
+  public int getBatchSize()
+  {
+    int batchSize = DEFAULT_BATCH_SIZE;
+    Object bs = properties.get(Context.BATCHSIZE);
+    if (bs != null)
+      {
+        try
+          {
+            int b = Integer.parseInt(bs.toString());
+            if (b >= 0)
+              batchSize = b;
+          }
+        catch (NumberFormatException e)
+          {
+            // OK, use default value.
+          }
+      }
+    return batchSize;
+  }
+
+}
diff --git a/libjava/classpath/gnu/javax/naming/giop/ListBindingsEnumeration.java b/libjava/classpath/gnu/javax/naming/giop/ListBindingsEnumeration.java
new file mode 100644
index 000000000..dd9ed0265
--- /dev/null
+++ b/libjava/classpath/gnu/javax/naming/giop/ListBindingsEnumeration.java
@@ -0,0 +1,118 @@
+/* ListBindingsEnumeration.java -- handles corbaname: urls
+   Copyright (C) 2006 Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+
+package gnu.javax.naming.giop;
+
+import gnu.java.lang.CPStringBuilder;
+
+import javax.naming.NamingEnumeration;
+
+import org.omg.CosNaming.Binding;
+import org.omg.CosNaming.BindingIteratorHolder;
+import org.omg.CosNaming.BindingListHolder;
+import org.omg.CosNaming.NamingContext;
+
+/**
+ * Iterates over bindings, obtaining values first from the binding list and then
+ * from the binding iterator.
+ *
+ * @author Audrius Meskauskas
+ */
+public class ListBindingsEnumeration extends GiopNamingEnumeration implements
+    NamingEnumeration
+{
+  /**
+   * The naming service, to resolve the objects.
+   */
+  NamingContext service;
+
+  /**
+   * Create the new enumeration
+   *
+   * @param bh
+   *          holder, containing the first portion of the bindings
+   * @param bih
+   *          the iterator, containing the remaining bindings
+   * @param batchSize
+   *          the number of bindings the the iterator will be requested to
+   *          return as a single pack
+   * @param aService
+   *          the naming service, used to obtain the objects, bound to the
+   *          names.
+   */
+  public ListBindingsEnumeration(BindingListHolder bh,
+                                 BindingIteratorHolder bih, int batchSize,
+                                 NamingContext aService)
+  {
+    super(bh, bih, batchSize);
+    service = aService;
+  }
+
+  /**
+   * Convert from the CORBA binding into the javax.naming binding. As the CORBA
+   * naming service binding does not contain the object itself, this method
+   * makes the additional calls to the naming service.
+   *
+   * @param binding
+   *          the binding to convert
+   * @return the value, that must be returned by the {@link #next()}.
+   */
+  public Object convert(Binding binding)
+  {
+    CPStringBuilder name = new CPStringBuilder();
+
+    for (int i = 0; i < binding.binding_name.length; i++)
+      {
+        name.append(binding.binding_name[i]);
+        if (i < binding.binding_name.length - 1)
+          name.append('/');
+      }
+
+    try
+      {
+        Object object = service.resolve(binding.binding_name);
+        return new javax.naming.Binding(name.toString(), object);
+      }
+    catch (Exception e)
+      {
+        // Probably was removed by the concurent thread.
+        return null;
+      }
+  }
+
+}
diff --git a/libjava/classpath/gnu/javax/naming/giop/ListEnumeration.java b/libjava/classpath/gnu/javax/naming/giop/ListEnumeration.java
new file mode 100644
index 000000000..68a40fcf0
--- /dev/null
+++ b/libjava/classpath/gnu/javax/naming/giop/ListEnumeration.java
@@ -0,0 +1,118 @@
+/* ListEnumeration.java -- handles corbaname: urls
+   Copyright (C) 2006 Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+odule.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+
+package gnu.javax.naming.giop;
+
+import gnu.java.lang.CPStringBuilder;
+
+import javax.naming.NameClassPair;
+import javax.naming.NamingEnumeration;
+
+import org.omg.CosNaming.Binding;
+import org.omg.CosNaming.BindingIteratorHolder;
+import org.omg.CosNaming.BindingListHolder;
+import org.omg.CosNaming.BindingType;
+import org.omg.CosNaming.NamingContext;
+
+/**
+ * Iterates over name class pairs, obtaining values first from the binding list
+ * and then from the binding iterator.
+ *
+ * @author Audrius Meskauskas
+ */
+public class ListEnumeration extends GiopNamingEnumeration implements
+    NamingEnumeration
+{
+  /**
+   * Create the new enumeration
+   *
+   * @param bh
+   *          holder, containing the first portion of the bindings
+   * @param bih
+   *          the iterator, containing the remaining bindings
+   * @param batchSize
+   *          the number of bindings the the iterator will be requested to
+   *          return as a single pack
+   */
+  public ListEnumeration(BindingListHolder bh,
+                                 BindingIteratorHolder bih, int batchSize)
+  {
+    super(bh, bih, batchSize);
+  }
+
+  /**
+   * Convert from the CORBA binding into the {@link NameClassPair} that this
+   * enumeration should return. This method converts into NameClassPair,
+   * connecting the name components with slashes and setting the class name
+   * to either NamingContext or GIOP Object.
+   *
+   * @param binding
+   *          the binding to convert
+   * @return the value, that must be returned by the {@link #next()}.
+   */
+  public Object convert(Binding binding)
+  {
+    CPStringBuilder name = new CPStringBuilder();
+
+    for (int i = 0; i < binding.binding_name.length; i++)
+      {
+        name.append(binding.binding_name[i]);
+        if (i < binding.binding_name.length - 1)
+          name.append('/');
+      }
+
+    String className;
+
+    switch (binding.binding_type.value())
+      {
+      case BindingType._ncontext:
+        className = NamingContext.class.getName();
+        break;
+      case BindingType._nobject:
+        className = org.omg.CORBA.Object.class.getName();
+        break;
+      default:
+        className = Object.class.getName();
+        break;
+      }
+
+    NameClassPair pair = new NameClassPair(name.toString(), className);
+    return pair;
+  }
+
+}