org.codehaus.groovy.tools.shell.util.NoExitSecurityManager Maven / Gradle / Ivy
/*
* Copyright (C) 2006-2007 the original author or authors.
*
* Licensed 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 org.codehaus.groovy.tools.shell.util;
import java.security.Permission;
/**
* Custom security manager to {@link System#exit} (and related) from being used.
*
* @version $Rev$ $Date$
*/
public class NoExitSecurityManager
extends SecurityManager
{
private final SecurityManager parent;
public NoExitSecurityManager(final SecurityManager parent) {
assert parent != null;
this.parent = parent;
}
public NoExitSecurityManager() {
this(System.getSecurityManager());
}
public void checkPermission(final Permission perm) {
if (parent != null) {
parent.checkPermission(perm);
}
}
/**
* Always throws {@link SecurityException}.
*/
public void checkExit(final int code) {
throw new SecurityException("Use of System.exit() is forbidden!");
}
/*
public void checkPermission(final Permission perm) {
assert perm != null;
if (perm.getName().equals("exitVM")) {
System.out.println("exitVM");
}
}
*/
}