text: /*
   * reserved comment block
   * DO NOT REMOVE OR ALTER!
   */
  /*
   * Licensed to the Apache Software Foundation (ASF) under one or more
   * contributor license agreements.  See the NOTICE file distributed with
   * this work for additional information regarding copyright ownership.
   * The ASF licenses this file to You under the Apache License, Version 2.0
   * (the "License"); you may not use this file except in compliance with
   * the License.  You may obtain a copy of the License at
   *
   *      http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  package com.sun.org.apache.bcel.internal.generic;
  
  import java.io.DataOutputStream;
  import java.io.IOException;
  
  /**
   * JSR - Jump to subroutine
   *
   * @version $Id: JSR.java 1749603 2016-06-21 20:50:19Z ggregory $
   */
  public class JSR extends JsrInstruction implements VariableLengthInstruction {
  
      /**
       * Empty constructor needed for the Class.newInstance() statement in
       * Instruction.readInstruction(). Not to be used otherwise.
       */
      JSR() {
      }
  
  
      public JSR(final InstructionHandle target) {
          super(com.sun.org.apache.bcel.internal.Const.JSR, target);
      }
  
  
      /**
       * Dump instruction as byte code to stream out.
       * @param out Output stream
       */
      @Override
      public void dump( final DataOutputStream out ) throws IOException {
          super.setIndex(getTargetOffset());
          if (super.getOpcode() == com.sun.org.apache.bcel.internal.Const.JSR) {
              super.dump(out);
          } else { // JSR_W
              super.setIndex(getTargetOffset());
              out.writeByte(super.getOpcode());
              out.writeInt(super.getIndex());
          }
      }
  
  
      @Override
      protected int updatePosition( final int offset, final int max_offset ) {
          final int i = getTargetOffset(); // Depending on old position value
          setPosition(getPosition() + offset); // Position may be shifted by preceding expansions
          if (Math.abs(i) >= (Short.MAX_VALUE - max_offset)) { // to large for short (estimate)
              super.setOpcode(com.sun.org.apache.bcel.internal.Const.JSR_W);
              final short old_length = (short) super.getLength();
              super.setLength(5);
              return super.getLength() - old_length;
          }
          return 0;
      }
  
  
      /**
       * Call corresponding visitor method(s). The order is:
       * Call visitor methods of implemented interfaces first, then
       * call methods according to the class hierarchy in descending order,
       * i.e., the most specific visitXXX() call comes last.
       *
       * @param v Visitor object
       */
      @Override
      public void accept( final Visitor v ) {
          v.visitStackProducer(this);
          v.visitVariableLengthInstruction(this);
          v.visitBranchInstruction(this);
          v.visitJsrInstruction(this);
          v.visitJSR(this);
      }
  }
  