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diff --git a/javax/management/ObjectInstance.java b/javax/management/ObjectInstance.java
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+/* ObjectInstance.java -- Represent the bean instance used by a server.
+   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 java.io.Serializable;
+
+/**
+ * A simple class used to link a bean instance to its class name.
+ * If the bean is a {@link DynamicMBean}, the class name may be
+ * obtained using {@link MBeanInfo#getClassName()}.
+ *
+ * @author Andrew John Hughes (gnu_andrew@member.fsf.org)
+ * @since 1.5
+ */
+public class ObjectInstance
+  implements Serializable
+{
+
+  /**
+   * Compatible with JDK 1.5
+   */
+  private static final long serialVersionUID = -4099952623687795850L;
+
+  /**
+   * The name of the bean.
+   */
+  private ObjectName name;
+
+  /**
+   * The class name of the bean.
+   */
+  private String className;
+
+  /**
+   * Constructs a new {@link ObjectInstance} for the specified bean
+   * with the supplied class name.  The class name should include
+   * the full package name.
+   *
+   * @param name the name of the bean.
+   * @param className the class name of the bean.
+   */
+  public ObjectInstance(ObjectName name, String className)
+  {
+    this.name = name;
+    this.className = className;
+  }
+
+  /**
+   * Constructs a new {@link ObjectInstance} for the specified bean
+   * with the supplied class name.  The class name should include
+   * the full package name.
+   *
+   * @param name the name of the bean.
+   * @param className the class name of the bean.
+   * @throws MalformedObjectNameException if the name of the bean
+   *                                      does not match the syntax
+   *                                      of an {@link ObjectName}.
+   */
+  public ObjectInstance(String name, String className)
+    throws MalformedObjectNameException
+  {
+    this(new ObjectName(name), className);
+  }
+
+  /**
+   * Returns true if the supplied object is also an {@link ObjectInstance}
+   * with the same bean and class name.
+   *
+   * @param obj the object to compare.
+   * @return true if the the supplied object is equal to <code>this</code>.
+   */
+  public boolean equals(Object obj)
+  {
+    if (!(obj instanceof ObjectInstance))
+      return false;
+    ObjectInstance i = (ObjectInstance) obj;
+    return (i.getClassName().equals(className) &&
+	    i.getObjectName().equals(name));
+  }
+
+  /**
+   * Returns the class name of the bean.
+   *
+   * @return the class name.
+   */
+  public String getClassName()
+  {
+    return className;
+  }
+
+  /**
+   * Returns the name of the bean.
+   *
+   * @return the name of the bean.
+   */
+  public ObjectName getObjectName()
+  {
+    return name;
+  }
+
+  /**
+   * Returns a hash code for this instance.  This is calculated as
+   * the sum of the hashcodes for the bean's name and the class name.
+   *
+   * @return the hash code of this instance.
+   */
+  public int hashCode()
+  {
+    return name.hashCode() + className.hashCode();
+  }
+
+}