java.util.concurrent.locks.Lock offers far more powerful and flexible locking operations than are available with
synchronized blocks. So synchronizing on a Lock throws away the power of the object, and is just silly. Instead, such
objects should be locked and unlocked using tryLock() and unlock().
Noncompliant Code Example
Lock lock = new MyLockImpl();
synchronized(lock) { // Noncompliant
//...
}
Compliant Solution
Lock lock = new MyLockImpl();
lock.tryLock();
//...
See
- CERT, LCK03-J. - Do not synchronize on the intrinsic locks of high-level concurrency
objects
