Lock lock = null;
            boolean lockTimedOut = false;
            try {
                // XXX: Should not hardcode the timeout.
                lock = adminLock.getLock(command, 30, "asadmin");
            ...

            } catch (AdminCommandLockTimeoutException ex) {
                lockTimedOut = true;
                ...
                logger.warning(logMsg);
                report.setMessage(msg);
                report.setActionExitCode(ActionReport.ExitCode.FAILURE);
            } finally {
                // command is done, release the lock
                if (lock != null && lockTimedOut == false)
                    lock.unlock();
            }

ouch: ./asadmin list-commands
remote failure: The command was blocked from executing. The domain is
either suspended or another command required exclusive access to the domain.


The domain was suspend or locked on Tue, 14 Sep 2010 11:05:33 PDT.


Command list-commands failed.