com.atlassian.bamboo.specs.maven.sandbox.AccessControlContextHackcessor Maven / Gradle / Ivy
package com.atlassian.bamboo.specs.maven.sandbox;
import java.lang.reflect.Method;
import java.security.AccessControlContext;
import java.security.AccessController;
import java.security.ProtectionDomain;
import java.util.Arrays;
import java.util.Collection;
import java.util.LinkedHashSet;
/**
* This class exists to provide access to {@link AccessControlContext#getContext()} method, which is package protected.
*/
public final class AccessControlContextHackcessor {
private AccessControlContextHackcessor() {
}
private static ProtectionDomain[] getFullContext() {
final AccessControlContext acc = AccessController.getContext();
try {
final Method getContextMethod = AccessControlContext.class.getDeclaredMethod("getContext");
getContextMethod.setAccessible(true);
return (ProtectionDomain[]) getContextMethod.invoke(acc);
} catch (final Exception e) {
throw new RuntimeException(e);
}
}
/**
* Returns the list of protection domains of the code available on stack. It will exclude the protection domain of the supplied class.
* If the returned list is empty, the stack contained only system/privileged code.
*/
public static Collection getContext(final Class pdToExclude) {
final Collection protectionDomains = new LinkedHashSet<>(Arrays.asList(getFullContext()));
protectionDomains.remove(pdToExclude.getProtectionDomain());
return protectionDomains;
}
}