/guava/android/guava/src/com/google/common/util/concurrent/CycleDetectingLockFactory.java
super.unlock( ) ;super.lock( ) ;
super.lock ( ) ;
return isHeldByCurrentThread(); } @Override public void lock() { aboutToAcquire(this); try { <extra_id_0> } finally { lockStateChanged(this); } } @Override public void lockInterruptibly() throws InterruptedException {