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diff --git a/libjava/classpath/javax/management/MBeanServerFactory.java b/libjava/classpath/javax/management/MBeanServerFactory.java
new file mode 100644
index 000000000..f9bd4566f
--- /dev/null
+++ b/libjava/classpath/javax/management/MBeanServerFactory.java
@@ -0,0 +1,413 @@
+/* MBeanServerFactory.java -- Manages server instances.
+   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 javax.management;
+
+import gnu.classpath.SystemProperties;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.Iterator;
+import java.util.Map;
+
+import javax.management.loading.ClassLoaderRepository;
+
+/**
+ * <p>
+ * Creates and maintains a set of {@link MBeanServer} instances.
+ * Server instances, as of JMX 1.2, are created using a subclass
+ * of {@link MBeanServerBuilder}.  The exact class used is controlled
+ * by the property <code>javax.management.builder.initial</code>,
+ * and allows the instances created by {@link MBeanServerBuilder}
+ * to be wrapped, thus providing additional functionality.
+ * </p>
+ * <p>
+ * The property is used as follows:
+ * </p>
+ * <ol>
+ * <li>If the property has no value, then an instance of
+ * {@link MBeanServerBuilder} is used.</li>
+ * <li>If a value is given, then:
+ * <ol>
+ * <li>The class is loaded using
+ * <code>Thread.currentThread().getContextClassLoader()</code>, or,
+ * if this is <code>null</code>, by <code>Class.forName()</code>.</li>
+ * <li><code>Class.newInstance()</code> is used to create an instance
+ * of the class.  The class must be public and have a public empty
+ * constructor.  If an exception is thrown, it is propogated as
+ * a {@link JMRuntimeException} and no new server instances may be
+ * created until the property is set to a valid value.</li>
+ * </ol></li>
+ * <li>The value is checked on each successive request for a server.
+ * If it differs from the class of the existing instance of
+ * {@link MBeanServerBuilder}, then the value is used to create
+ * a new instance.</li>
+ * </ol>
+ */
+public class MBeanServerFactory
+{
+
+  /**
+   * The last builder instance.
+   */
+  private static MBeanServerBuilder builder;
+
+  /**
+   * The map of registered servers (identifiers to servers).
+   */
+  private static final Map<Object,MBeanServer> servers =
+    new HashMap<Object,MBeanServer>();
+
+  /**
+   * Private constructor to prevent instance creation.
+   */
+  private MBeanServerFactory() {}
+
+  /**
+   * Returns a server implementation using the default domain name
+   * of <code>"DefaultDomain"</code>.  The default domain name is
+   * used when the domain name specified by the user is <code>null</code.
+   * A reference to the created server is retained, so that it can
+   * be retrieved at a later date using {@link #findMBeanServer}.
+   * Calling this method is equivalent to calling
+   * {@link createMBeanServer(String)} with a <code>null</code> value.
+   *
+   * @return a new {@link MBeanServer} instance.
+   * @throws SecurityException if a security manager exists and the
+   *                           caller's permissions don't imply {@link
+   *                           MBeanServerPermission(String)}("createMBeanServer")
+   * @throws JMRuntimeException if the property
+   *                     <code>javax.management.builder.initial</code>
+   *                     exists but names a class which either can not be
+   *                     instantiated or provides an implementation that returns
+   *                     <code>null</code> from either
+   *                     {@link MBeanServerBuilder#newMBeanServerDelegate()}
+   *                     or {@link MBeanServerBuilder#newMBeanServer()}
+   * @throws ClassCastException if the property
+   *                     <code>javax.management.builder.initial</code>
+   *                     exists but names a class which is not a subclass
+   *                     of {@link MBeanServerBuilder}.
+   * @see #createMBeanServer(String)
+   */
+  public static MBeanServer createMBeanServer()
+  {
+    return createMBeanServer(null);
+  }
+
+  /**
+   * Returns a server implementation using the default domain name
+   * given, or <code>"DefaultDomain"</code> if this is <code>null</code>.
+   * The default domain name is used when the domain name specified by
+   * the user is <code>null</code.  A reference to the created server is
+   * retained, so that it can be retrieved at a later date using
+   * {@link #findMBeanServer}.
+   *
+   * @param domain the default domain name of the server.
+   * @return a new {@link MBeanServer} instance.
+   * @throws SecurityException if a security manager exists and the
+   *                           caller's permissions don't imply {@link
+   *                           MBeanServerPermission(String)}("createMBeanServer")
+   * @throws JMRuntimeException if the property
+   *                     <code>javax.management.builder.initial</code>
+   *                     exists but names a class which either can not be
+   *                     instantiated or provides an implementation that returns
+   *                     <code>null</code> from either
+   *                     {@link MBeanServerBuilder#newMBeanServerDelegate()}
+   *                     or {@link MBeanServerBuilder#newMBeanServer()}
+   * @throws ClassCastException if the property
+   *                     <code>javax.management.builder.initial</code>
+   *                     exists but names a class which is not a subclass
+   *                     of {@link MBeanServerBuilder}.
+   */
+  public static MBeanServer createMBeanServer(String domain)
+  {
+    SecurityManager sm = System.getSecurityManager();
+    if (sm != null)
+      sm.checkPermission(new MBeanServerPermission("createMBeanServer"));
+    MBeanServer server = createServer(domain);
+    try
+      {
+        ObjectName dn = new
+          ObjectName("JMImplementation:type=MBeanServerDelegate");
+        servers.put(server.getAttribute(dn, "MBeanServerId"), server);
+      }
+    catch (MalformedObjectNameException e)
+      {
+        throw (Error)
+          (new InternalError("Malformed delegate bean name.").initCause(e));
+      }
+    catch (MBeanException e)
+      {
+        throw (Error)
+          (new InternalError("Exception in getMBeanServerId().").initCause(e));
+      }
+    catch (AttributeNotFoundException e)
+      {
+        throw (Error)
+          (new InternalError("Could not find MBeanServerId attribute.").initCause(e));
+      }
+    catch (InstanceNotFoundException e)
+      {
+        throw (Error)
+          (new InternalError("Could not find the delegate bean.").initCause(e));
+      }
+    catch (ReflectionException e)
+      {
+        throw (Error)
+          (new InternalError("Could not call getMBeanServerId().").initCause(e));
+      }
+    return server;
+  }
+
+  /**
+   * Returns the specified server, or, if <code>id</code> is <code>null</code>,
+   * a list of all registered servers.  A registered server is one that
+   * was created using {@link #createMBeanServer()} or
+   * {@link #createMBeanServer(String)} and has not yet been released
+   * using {@link releaseMBeanServer(MBeanServer)}.
+   *
+   * @param id the id of the server to retrieve, or <code>null</code>
+   *           to return all servers.
+   * @return a list of {@link MBeanServer}s.
+   * @throws SecurityException if a security manager exists and the
+   *                           caller's permissions don't imply {@link
+   *                           MBeanServerPermission(String)}("findMBeanServer")
+   */
+  public static ArrayList<MBeanServer> findMBeanServer(String id)
+  {
+    SecurityManager sm = System.getSecurityManager();
+    if (sm != null)
+      sm.checkPermission(new MBeanServerPermission("findMBeanServer"));
+    if (id == null)
+      return new ArrayList<MBeanServer>(servers.values());
+    ArrayList<MBeanServer> list = new ArrayList<MBeanServer>();
+    MBeanServer server = servers.get(id);
+    if (server != null)
+      list.add(servers.get(id));
+    return list;
+  }
+
+  /**
+   * Returns the class loader repository used by the specified server.
+   * This is equivalent to calling {@link MBeanServer#getClassLoaderRepository()}
+   * on the given server.
+   *
+   * @param server the server whose class loader repository should be
+   *               retrieved.
+   * @throws NullPointerException if <code>server</code> is <code>null</code>.
+   * @throws SecurityException if a security manager exists and the
+   *                           caller's permissions don't imply {@link
+   *                           MBeanPermission(String,String,ObjectName,String)
+   *                           <code>MBeanPermission(null, null, null,
+   *                           "getClassLoaderRepository")</code>
+   */
+  public static ClassLoaderRepository getClassLoaderRepository(MBeanServer server)
+  {
+    return server.getClassLoaderRepository();
+  }
+
+  /**
+   * Returns a server implementation using the default domain name
+   * of <code>"DefaultDomain"</code>.  The default domain name is
+   * used when the domain name specified by the user is <code>null</code.
+   * No reference to the created server is retained, so the server is
+   * garbage collected when it is no longer used, but it can not be
+   * retrieved at a later date using {@link #findMBeanServer}.
+   * Calling this method is equivalent to calling
+   * {@link newMBeanServer(String)} with a <code>null</code> value.
+   *
+   * @return a new {@link MBeanServer} instance.
+   * @throws SecurityException if a security manager exists and the
+   *                           caller's permissions don't imply {@link
+   *                           MBeanServerPermission(String)}("newMBeanServer")
+   * @throws JMRuntimeException if the property
+   *                     <code>javax.management.builder.initial</code>
+   *                     exists but names a class which either can not be
+   *                     instantiated or provides an implementation that returns
+   *                     <code>null</code> from either
+   *                     {@link MBeanServerBuilder#newMBeanServerDelegate()}
+   *                     or {@link MBeanServerBuilder#newMBeanServer()}
+   * @throws ClassCastException if the property
+   *                     <code>javax.management.builder.initial</code>
+   *                     exists but names a class which is not a subclass
+   *                     of {@link MBeanServerBuilder}.
+   * @see #newMBeanServer(String)
+   */
+  public static MBeanServer newMBeanServer()
+  {
+    return newMBeanServer(null);
+  }
+
+  /**
+   * Returns a server implementation using the default domain name
+   * given, or <code>"DefaultDomain"</code> if this is <code>null</code>.
+   * The default domain name is used when the domain name specified by
+   * the user is <code>null</code.  No reference to the created server is
+   * retained, so the server is garbage collected when it is no longer
+   * used, but it can not be retrieved at a later date using
+   * {@link #findMBeanServer}.
+   *
+   * @param domain the default domain name of the server.
+   * @return a new {@link MBeanServer} instance.
+   * @throws SecurityException if a security manager exists and the
+   *                           caller's permissions don't imply {@link
+   *                           MBeanServerPermission(String)}("newMBeanServer")
+   * @throws JMRuntimeException if the property
+   *                     <code>javax.management.builder.initial</code>
+   *                     exists but names a class which either can not be
+   *                     instantiated or provides an implementation that returns
+   *                     <code>null</code> from either
+   *                     {@link MBeanServerBuilder#newMBeanServerDelegate()}
+   *                     or {@link MBeanServerBuilder#newMBeanServer()}
+   * @throws ClassCastException if the property
+   *                     <code>javax.management.builder.initial</code>
+   *                     exists but names a class which is not a subclass
+   *                     of {@link MBeanServerBuilder}.
+   */
+  public static MBeanServer newMBeanServer(String domain)
+  {
+    SecurityManager sm = System.getSecurityManager();
+    if (sm != null)
+      sm.checkPermission(new MBeanServerPermission("newMBeanServer"));
+    return createServer(domain);
+  }
+
+  /**
+   * Common method to create a server for the {@link #createMBeanServer(String)}
+   * and {@link #newMBeanServer(String)} methods above.
+   *
+   * @param domain the default domain name of the server.
+   * @throws JMRuntimeException if the property
+   *                     <code>javax.management.builder.initial</code>
+   *                     exists but names a class which either can not be
+   *                     instantiated or provides an implementation that returns
+   *                     <code>null</code> from either
+   *                     {@link MBeanServerBuilder#newMBeanServerDelegate()}
+   *                     or {@link MBeanServerBuilder#newMBeanServer()}
+   * @throws ClassCastException if the property
+   *                     <code>javax.management.builder.initial</code>
+   *                     exists but names a class which is not a subclass
+   *                     of {@link MBeanServerBuilder}.
+   */
+  private static MBeanServer createServer(String domain)
+    {
+    if (domain == null)
+      domain = "DefaultDomain";
+    String builderClass =
+      SystemProperties.getProperty("javax.management.builder.initial");
+    if (builderClass == null)
+      {
+        if (builder == null ||
+            builder.getClass() != MBeanServerBuilder.class)
+          builder = new MBeanServerBuilder();
+      }
+    else if (!(builder != null &&
+               builderClass.equals(builder.getClass().getName())))
+      {
+        ClassLoader cl = Thread.currentThread().getContextClassLoader();
+        if (cl == null)
+          cl = MBeanServerFactory.class.getClassLoader();
+        try
+          {
+            Class<?> bClass = Class.forName(builderClass, true, cl);
+            builder = (MBeanServerBuilder) bClass.newInstance();
+          }
+        catch (ClassNotFoundException e)
+          {
+            throw (JMRuntimeException) (new JMRuntimeException("The builder class, "
+                                                               + builderClass +
+                                                               ", could not be found."))
+              .initCause(e);
+          }
+        catch (InstantiationException e)
+          {
+            throw (JMRuntimeException) (new JMRuntimeException("The builder class, "
+                                                               + builderClass +
+                                                               ", could not be instantiated."))
+              .initCause(e);
+          }
+        catch (IllegalAccessException e)
+          {
+            throw (JMRuntimeException) (new JMRuntimeException("The builder class, "
+                                                               + builderClass +
+                                                               ", could not be accessed."))
+              .initCause(e);
+          }
+      }
+    MBeanServerDelegate delegate = builder.newMBeanServerDelegate();
+    if (delegate == null)
+      throw new JMRuntimeException("A delegate could not be created.");
+    MBeanServer server = builder.newMBeanServer(domain, null, delegate);
+    if (server == null)
+      throw new JMRuntimeException("A server could not be created.");
+    return server;
+  }
+
+  /**
+   * Removes the reference to the specified server, thus allowing it to
+   * be garbage collected.
+   *
+   * @param server the server to remove.
+   * @throws IllegalArgumentException if a reference to the server is not
+   *                                  held (i.e. it wasn't created by
+   *                                  {@link #createMBeanServer(String)}
+   *                                  or this method has already been called
+   *                                  on it.
+   * @throws SecurityException if a security manager exists and the
+   *                           caller's permissions don't imply {@link
+   *                           MBeanServerPermission(String)}("releaseMBeanServer")
+   */
+  public static void releaseMBeanServer(MBeanServer server)
+  {
+    SecurityManager sm = System.getSecurityManager();
+    if (sm != null)
+      sm.checkPermission(new MBeanServerPermission("releaseMBeanServer"));
+    Iterator<MBeanServer> i = servers.values().iterator();
+    while (i.hasNext())
+      {
+        MBeanServer s = i.next();
+        if (server == s)
+          {
+            i.remove();
+            return;
+          }
+      }
+    throw new IllegalArgumentException("The server given is not referenced.");
+  }
+
+
+}