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diff --git a/libjava/classpath/org/omg/PortableServer/portable/Delegate.java b/libjava/classpath/org/omg/PortableServer/portable/Delegate.java
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+/* DelegateOperations.java --
+   Copyright (C) 2005, 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 org.omg.PortableServer.portable;
+
+import org.omg.CORBA.ORB;
+import org.omg.PortableServer.POA;
+import org.omg.PortableServer.Servant;
+
+/**
+ * Each {@link Servant} has an associated delegate, where the most of the calls
+ * are forwarded. The delegate is responsible for providing the actual
+ * functionality. This class is required to supports a conceptions of
+ * the CORBA 2.3.1 Servant.
+ *
+ * @author Audrius Meskauskas, Lithuania (AudriusA@Bioinformatics.org)
+ */
+public interface Delegate
+{
+  /**
+  * Returns the root POA of the ORB instance, associated with this servant.
+  * It is the same POA that would be returned by resolving the initial
+  * reference "RootPOA" for that orb. The default {@link Servant#_default_POA()}
+  * method forwards call to the delegate can be overridden to
+  * obtain the alternative default POA.
+  *
+  * @see ORB#resolve_initial_references
+  */
+  POA default_POA(Servant a_servant);
+
+  /**
+  * Get the interface repository defintion
+  * <code>InterfaceDef</code> for this Object.
+  */
+  org.omg.CORBA.Object get_interface_def(Servant a_servant);
+
+  /**
+  * Checks if the passed servant is an instance of the given CORBA IDL type.
+  *
+  * @param a_servant a servant to check.
+  * @param an_id a repository ID, representing an IDL type for that the
+  * servant must be checked.
+  *
+  * @return true if the servant is an instance of the given type, false
+  * otherwise.
+  */
+  boolean is_a(Servant a_servant, String an_id);
+
+  /**
+   * Determines if the server object for this reference has already
+   * been destroyed.
+   *
+   * @return true if the object has been destroyed, false otherwise.
+   */
+  boolean non_existent(Servant a_servant);
+
+  /**
+  * Return the invocation target object identifier as a byte array.
+  */
+  byte[] object_id(Servant a_servant);
+
+  /**
+  * Returns the ORB that is directly associated with the given servant.
+  */
+  ORB orb(Servant a_servant);
+
+  /**
+  * Get POA that is directly associated with the given servant.
+  */
+  POA poa(Servant a_servant);
+
+  /**
+  * Obtains the CORBA object reference that is an invocation target for the
+  * given servant.
+  */
+  org.omg.CORBA.Object this_object(Servant a_servant);
+}