static ClassLoader setThreadContextClassLoader(Class cl) {
if (getSecurityManager() == null) {
final Thread thread = currentThread();
try {
return thread.getContextClassLoader();
} finally {
thread.setContextClassLoader(cl.getClassLoader());
}
} else {
return doPrivileged(
new SetContextClassLoaderAction(doPrivileged(new GetClassLoaderAction(cl))));
}
}
