@Override public void acquireLock() { if (lockTarget == null) { return; } if (isLockedByCurrentUser()) { fireChangeTitleEvent(); return; } if (lockInfo.isLocked()) { handleLockFailure(lockInfo); } else if (!lockRequestPending) { lockRequestPending = true; final ParameterizedCommand<LockResult> command = new ParameterizedCommand<LockResult>() { @Override public void execute(final LockResult result) { if (result.isSuccess()) { updateLockInfo(result.getLockInfo()); releaseLockOnClose(); } else { handleLockFailure(result.getLockInfo()); } lockRequestPending = false; } }; lockService.acquireLock(lockTarget.getPath(), command); } }