NoExitSecurityManager.java

package org.codehaus.mojo.antlr;

/*
 * 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.
 */

import java.security.Permission;

/**
 * @author <a href="mailto:vincent.siveton@gmail.com">Vincent Siveton</a>
 * @version $Id$
 */
public class NoExitSecurityManager
    extends SecurityManager
{
    static final NoExitSecurityManager INSTANCE = new NoExitSecurityManager();

    private NoExitSecurityManager()
    {
        // nop
    }

    /**
     * @see java.lang.SecurityManager#checkPermission(java.security.Permission)
     */
    public void checkPermission( Permission permission )
    {
        // nop
    }

    /**
     * @see java.lang.SecurityManager#checkExit(int)
     */
    public void checkExit( int status )
    {
        throw new SecurityException( "exitVM-" + status );
    }
}