    001/*
    002 * Licensed to the Apache Software Foundation (ASF) under one or more
    003 * contributor license agreements.  See the NOTICE file distributed with
    004 * this work for additional information regarding copyright ownership.
    005 * The ASF licenses this file to You under the Apache License, Version 2.0
    006 * (the "License"); you may not use this file except in compliance with
    007 * the License.  You may obtain a copy of the License at
    008 *
    009 *      http://www.apache.org/licenses/LICENSE-2.0
    010 *
    011 *  Unless required by applicable law or agreed to in writing, software
    012 *  distributed under the License is distributed on an "AS IS" BASIS,
    013 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    014 *  See the License for the specific language governing permissions and
    015 *  limitations under the License.
    016 *
    017 */
    018package org.apache.bcel.generic;
    019
    020import org.apache.bcel.ExceptionConst;
    021
    022/**
    023 * MONITORENTER - Enter monitor for object
    024 *
    025 * <PRE>
    026 * Stack: ..., objectref -&gt; ...
    027 * </PRE>
    028 *
    029 */
    030public class MONITORENTER extends Instruction implements ExceptionThrower, StackConsumer {
    031
    032    public MONITORENTER() {
    033        super(org.apache.bcel.Const.MONITORENTER, (short) 1);
    034    }
    035
    036    /**
    037     * Call corresponding visitor method(s). The order is: Call visitor methods of implemented interfaces first, then call
    038     * methods according to the class hierarchy in descending order, i.e., the most specific visitXXX() call comes last.
    039     *
    040     * @param v Visitor object
    041     */
    042    @Override
    043    public void accept(final Visitor v) {
    044        v.visitExceptionThrower(this);
    045        v.visitStackConsumer(this);
    046        v.visitMONITORENTER(this);
    047    }
    048
    049    @Override
    050    public Class<?>[] getExceptions() {
    051        return new Class[] {ExceptionConst.NULL_POINTER_EXCEPTION};
    052    }
    053}