+ return withClassLoaderAndLock(cls, Optional.<Lock>absent(), function);
+ }
+
+ public static <V> V withClassLoaderAndLock(ClassLoader cls,Lock lock,Callable<V> function) throws Exception {
+ checkNotNull(lock,"Lock should not be null");
+ return withClassLoaderAndLock(cls, Optional.of(lock), function);
+ }
+
+ public static <V> V withClassLoaderAndLock(ClassLoader cls,Optional<Lock> lock,Callable<V> function) throws Exception {
+ checkNotNull(cls, "Classloader should not be null");
+ checkNotNull(function,"Function should not be null");
+ if(lock.isPresent()) {
+ lock.get().lock();
+ }