check if the lock is locked . concode_field_sep Path lockFile concode_elem_sep String JOB_LOCK_DIR concode_elem_sep String LOCK_FILE_EXTENSION concode_elem_sep FileSystem fs concode_field_sep void unlock concode_elem_sep void lock concode_elem_sep void close concode_elem_sep boolean tryLock
boolean function ( ) { try { return this . fs . exists ( this . lockFile ) ; } catch ( IOException loc0 ) { throw new JobLockException ( loc0 ) ; } }