/** Calls {@link #destroyImplInLock()} while claiming the lock. */
protected final void defaultDestroy() {
final RecursiveLock lock = getLock();
lock.lock();
try {
destroyImplInLock();
} finally {
lock.unlock();
}
}
@Override
protected void destroyImplInLock() {
super.destroyImplInLock();
}