001 /* 002 * Copyright (C) 2006-2007 the original author or authors. 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * http://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 */ 016 017 package org.codehaus.gmaven.runtime.support.util; 018 019 import java.security.Permission; 020 021 /** 022 * Custom security manager to {@link System#exit} (and related) from being used. 023 * 024 * @version $Id: NoExitSecurityManager.java 18 2009-07-16 09:39:40Z user57 $ 025 * @author <a href="mailto:jason@planet57.com">Jason Dillon</a> 026 */ 027 public class NoExitSecurityManager 028 extends SecurityManager 029 { 030 private final SecurityManager parent; 031 032 public NoExitSecurityManager(final SecurityManager parent) { 033 assert parent != null; 034 035 this.parent = parent; 036 } 037 038 public NoExitSecurityManager() { 039 this(System.getSecurityManager()); 040 } 041 042 public void checkPermission(final Permission perm) { 043 if (parent != null) { 044 parent.checkPermission(perm); 045 } 046 } 047 048 /** 049 * Always throws {@link SecurityException}. 050 */ 051 public void checkExit(final int code) { 052 throw new SecurityException("Use of System.exit() if forbidden!"); 053 } 054 055 /* 056 public void checkPermission(final Permission perm) { 057 assert perm != null; 058 059 if (perm.getName().equals("exitVM")) { 060 System.out.println("exitVM"); 061 } 062 } 063 */ 064 }