1 /* 2 * Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved. 3 */ 4 /* 5 * Licensed to the Apache Software Foundation (ASF) under one or more 6 * contributor license agreements. See the NOTICE file distributed with 7 * this work for additional information regarding copyright ownership. 8 * The ASF licenses this file to You under the Apache License, Version 2.0 9 * (the "License"); you may not use this file except in compliance with 10 * the License. You may obtain a copy of the License at 11 * 12 * http://www.apache.org/licenses/LICENSE-2.0 13 * 14 * Unless required by applicable law or agreed to in writing, software 15 * distributed under the License is distributed on an "AS IS" BASIS, 16 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 17 * See the License for the specific language governing permissions and 18 * limitations under the License. 19 */ 20 21 package com.sun.org.apache.bcel.internal.generic; 22 23 import com.sun.org.apache.bcel.internal.ExceptionConst; 24 25 /** 26 * MONITORENTER - Enter monitor for object 27 * <PRE>Stack: ..., objectref -> ...</PRE> 28 * 29 * @version $Id: MONITORENTER.java 1747278 2016-06-07 17:28:43Z britter $ 30 * @LastModified: Oct 2017 31 */ 32 public class MONITORENTER extends Instruction implements ExceptionThrower, StackConsumer { 33 34 public MONITORENTER() { 35 super(com.sun.org.apache.bcel.internal.Const.MONITORENTER, (short) 1); 36 } 37 38 39 @Override 40 public Class<?>[] getExceptions() { 41 return new Class<?>[] { 42 ExceptionConst.NULL_POINTER_EXCEPTION 43 }; 44 } 45 46 47 /** 48 * Call corresponding visitor method(s). The order is: 49 * Call visitor methods of implemented interfaces first, then 50 * call methods according to the class hierarchy in descending order, 51 * i.e., the most specific visitXXX() call comes last. 52 * 53 * @param v Visitor object 54 */ 55 @Override 56 public void accept( final Visitor v ) { 57 v.visitExceptionThrower(this); 58 v.visitStackConsumer(this); 59 v.visitMONITORENTER(this); 60 } 61 }