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diff --git a/src/java.corba/share/classes/com/sun/corba/se/spi/orbutil/fsm/FSMImpl.java b/src/java.corba/share/classes/com/sun/corba/se/spi/orbutil/fsm/FSMImpl.java
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+++ b/src/java.corba/share/classes/com/sun/corba/se/spi/orbutil/fsm/FSMImpl.java
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+/*
+ * Copyright (c) 2002, 2003, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code 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
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+package com.sun.corba.se.spi.orbutil.fsm ;
+
+import java.util.Set ;
+import java.util.HashSet ;
+
+import com.sun.corba.se.spi.orbutil.fsm.Input ;
+import com.sun.corba.se.spi.orbutil.fsm.StateEngine ;
+import com.sun.corba.se.impl.orbutil.fsm.StateEngineImpl ;
+import com.sun.corba.se.impl.orbutil.ORBUtility ;
+import com.sun.corba.se.spi.orbutil.fsm.FSM ;
+
+/**
+ * This is the main class that represents an instance of a state machine
+ * using a state engine.  It may be used as a base class, in which case
+ * the guards and actions have access to the derived class.
+ *
+ * @author Ken Cavanaugh
+ */
+public class FSMImpl implements FSM
+{
+    private boolean debug ;
+    private State state ;
+    private StateEngineImpl stateEngine ;
+
+    /** Create an instance of an FSM using the StateEngine
+    * in a particular start state.
+    */
+    public FSMImpl( StateEngine se, State startState )
+    {
+        this( se, startState, false ) ;
+    }
+
+    public FSMImpl( StateEngine se, State startState, boolean debug )
+    {
+        state = startState ;
+        stateEngine = (StateEngineImpl)se ;
+        this.debug = debug ;
+    }
+
+    /** Return the current state.
+    */
+    public State getState()
+    {
+        return state ;
+    }
+
+    /** Perform the transition for the given input in the current state.  This proceeds as follows:
+    * <p>Let S be the current state of the FSM.
+    * If there are guarded actions for S with input in, evaluate their guards successively until
+    * all have been evaluted, or one returns a non-DISABLED Result.
+    * <ol>
+    * <li>If a DEFERED result is returned, retry the input
+    * <li>If a ENABLED result is returned, the action for the guarded action
+    * is the current action
+    * <li>Otherwise there is no enabled action.  If S has a default action and next state, use them; otherwise
+    * use the state engine default action (the next state is always the current state).
+    * </ol>
+    * After the action is available, the transition proceeds as follows:
+    * <ol>
+    * <li>If the next state is not the current state, execute the current state postAction method.
+    * <li>Execute the action.
+    * <li>If the next state is not the current state, execute the next state preAction method.
+    * <li>Set the current state to the next state.
+    * </ol>
+    */
+    public void doIt( Input in )
+    {
+        stateEngine.doIt( this, in, debug ) ;
+    }
+
+    // Methods for use only by StateEngineImpl
+
+    public void internalSetState( State nextState )
+    {
+        if (debug) {
+            ORBUtility.dprint( this, "Calling internalSetState with nextState = " +
+                nextState ) ;
+        }
+
+        state = nextState ;
+
+        if (debug) {
+            ORBUtility.dprint( this, "Exiting internalSetState with state = " +
+                state ) ;
+        }
+    }
+}
+
+// end of FSMImpl.java