com.sun.istack.tools.MaskingClassLoader Maven / Gradle / Ivy
/*
* Copyright (c) 1997, 2018 Oracle and/or its affiliates. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Distribution License v. 1.0, which is available at
* http://www.eclipse.org/org/documents/edl-v10.php.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
package com.sun.istack.tools;
import java.util.Collection;
/**
* {@link ClassLoader} that masks a specified set of classes
* from its parent class loader.
*
*
* This code is used to create an isolated environment.
*
* @author Kohsuke Kawaguchi
*/
public class MaskingClassLoader extends ClassLoader {
private final String[] masks;
public MaskingClassLoader(String... masks) {
this.masks = masks;
}
public MaskingClassLoader(Collection masks) {
this(masks.toArray(new String[masks.size()]));
}
public MaskingClassLoader(ClassLoader parent, String... masks) {
super(parent);
this.masks = masks;
}
public MaskingClassLoader(ClassLoader parent, Collection masks) {
this(parent, masks.toArray(new String[masks.size()]));
}
@Override
protected synchronized Class loadClass(String name, boolean resolve) throws ClassNotFoundException {
for (String mask : masks) {
if(name.startsWith(mask))
throw new ClassNotFoundException();
}
return super.loadClass(name, resolve);
}
}