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diff --git a/javax/management/openmbean/OpenMBeanOperationInfo.java b/javax/management/openmbean/OpenMBeanOperationInfo.java
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+++ b/javax/management/openmbean/OpenMBeanOperationInfo.java
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+/* OpenMBeanOperationInfo.java -- Open typed info about a operation.
+   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.openmbean;
+
+import javax.management.MBeanParameterInfo;
+
+/**
+ * Describes a operation for an open management bean.
+ * This interface includes those methods specified by {@link
+ * javax.management.MBeanOperationInfo}, so implementations should
+ * extend this class.  The {@link #getSignature()} method should
+ * return an array containing instances of {@link OpenMBeanParameterInfo}.
+ *
+ * @author Andrew John Hughes (gnu_andrew@member.fsf.org)
+ * @since 1.5
+ */
+public interface OpenMBeanOperationInfo
+{
+
+  /**
+   * Compares this attribute with the supplied object.  This returns
+   * true iff the object is an instance of {@link OpenMBeanOperationInfo}
+   * with an equal name, signature, open return type and impact.
+   *
+   * @param obj the object to compare.
+   * @return true if the object is a {@link OpenMBeanParameterInfo}
+   *         instance, 
+   *         <code>name.equals(object.getName())</code>,
+   *         <code>signature.equals(object.getSignature())</code>,
+   *         <code>returnOpenType.equals(object.getReturnOpenType())</code>,
+   *         and <code>impact == object.getImpact()</code>.
+   */
+  boolean equals(Object obj);
+
+  /**
+   * Returns a description of this operation.
+   *
+   * @return a human-readable description.
+   */
+  String getDescription();
+
+  /**
+   * <p>
+   * Returns the impact of performing this operation.
+   * The value is equal to one of the following:
+   * </p>
+   * <ol>
+   * <li>{@link javax.management.MBeanOperationInfo#INFO}
+   * &mdash; the method just returns
+   * information (akin to an accessor).</li>
+   * <li>{@link javax.management.MBeanOperationInfo#ACTION}
+   * the method just alters the state of the bean, without
+   * returning a value (akin to a mutator).</li>
+   * <li>{@link javax.management.MBeanOperationInfo#ACTION_INFO}
+   * the method both makes state changes and returns a value.</li>
+   * <li>{@link javax.management.MBeanOperationInfo#UNKNOWN}
+   * the behaviour of the operation is unknown.</li>
+   * </ol>
+   *
+   * @return the impact of performing the operation.
+   */
+  int getImpact();
+
+  /**
+   * Returns the name of this operation.
+   *
+   * @return the name of the operation.
+   */
+  String getName();
+
+  /**
+   * Returns the open type instance which represents the type of the
+   * return value.
+   *
+   * @return the open type of the return value.
+   */
+  OpenType getReturnOpenType();
+
+  /**
+   * Returns the return type of the operation, as the class
+   * name.  This should be identical to
+   * <code>getReturnOpenType.getClassName()</code>.
+   *
+   * @return the return type.
+   */
+  String getReturnType();
+
+  /**
+   * Returns the operation's signature, in the form of
+   * information on each parameter.  Each parameter is
+   * described by an instance of {@link OpenMBeanParameterInfo}.
+   *
+   * @return an array of {@link OpenMBeanParameterInfo} objects,
+   *         describing the operation parameters.
+   */
+  MBeanParameterInfo[] getSignature();
+
+  /**
+   * Returns the hashcode of the operation information as the sum of
+   * the hashcodes of the name, open return type, impact and signature
+   * (calculated by
+   * <code>java.util.Arrays.asList(signature).hashCode()</code>).
+   *
+   * @return the hashcode of the operation information.
+   */
+  int hashCode();
+
+  /**
+   * Returns a textual representation of this instance.  This
+   * is constructed using the class name
+   * (<code>javax.management.openmbean.OpenMBeanOperationInfo</code>)
+   * along with the name, signature, open return type and impact.
+   *
+   * @return a @link{java.lang.String} instance representing
+   *         the instance in textual form.
+   */
+  String toString();
+
+}