--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jaxp/src/share/classes/com/sun/org/apache/bcel/internal/generic/ReturnInstruction.java	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,106 @@
+/*
+ * reserved comment block
+ * DO NOT REMOVE OR ALTER!
+ */
+package com.sun.org.apache.bcel.internal.generic;
+
+/* ====================================================================
+ * The Apache Software License, Version 1.1
+ *
+ * Copyright (c) 2001 The Apache Software Foundation.  All rights
+ * reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * 3. The end-user documentation included with the redistribution,
+ *    if any, must include the following acknowledgment:
+ *       "This product includes software developed by the
+ *        Apache Software Foundation (http://www.apache.org/)."
+ *    Alternately, this acknowledgment may appear in the software itself,
+ *    if and wherever such third-party acknowledgments normally appear.
+ *
+ * 4. The names "Apache" and "Apache Software Foundation" and
+ *    "Apache BCEL" must not be used to endorse or promote products
+ *    derived from this software without prior written permission. For
+ *    written permission, please contact apache@apache.org.
+ *
+ * 5. Products derived from this software may not be called "Apache",
+ *    "Apache BCEL", nor may "Apache" appear in their name, without
+ *    prior written permission of the Apache Software Foundation.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ * ====================================================================
+ *
+ * This software consists of voluntary contributions made by many
+ * individuals on behalf of the Apache Software Foundation.  For more
+ * information on the Apache Software Foundation, please see
+ * <http://www.apache.org/>.
+ */
+import com.sun.org.apache.bcel.internal.Constants;
+import com.sun.org.apache.bcel.internal.ExceptionConstants;
+
+/**
+ * Super class for the xRETURN family of instructions.
+ *
+ * @author  <A HREF="mailto:markus.dahm@berlin.de">M. Dahm</A>
+ */
+public abstract class ReturnInstruction extends Instruction
+  implements ExceptionThrower, TypedInstruction, StackConsumer {
+  /**
+   * Empty constructor needed for the Class.newInstance() statement in
+   * Instruction.readInstruction(). Not to be used otherwise.
+   */
+  ReturnInstruction() {}
+
+  /**
+   * @param opcode of instruction
+   */
+  protected ReturnInstruction(short opcode) {
+    super(opcode, (short)1);
+  }
+
+  public Type getType() {
+    switch(opcode) {
+      case Constants.IRETURN: return Type.INT;
+      case Constants.LRETURN: return Type.LONG;
+      case Constants.FRETURN: return Type.FLOAT;
+      case Constants.DRETURN: return Type.DOUBLE;
+      case Constants.ARETURN: return Type.OBJECT;
+      case Constants.RETURN:  return Type.VOID;
+
+    default: // Never reached
+      throw new ClassGenException("Unknown type " + opcode);
+    }
+  }
+
+  public Class[] getExceptions() {
+    return new Class[] { ExceptionConstants.ILLEGAL_MONITOR_STATE };
+  }
+
+  /** @return type associated with the instruction
+   */
+  public Type getType(ConstantPoolGen cp) {
+    return getType();
+  }
+}