question: private void validateCreateInformation ( Date startTime , String taskName ) { Assert . notNull ( startTime , "TaskExecution start time cannot be null." ) ; if ( taskName != null && taskName . length ( ) > this . maxTaskNameSize ) { throw new IllegalArgumentException ( "TaskName length exceeds " + this . maxTaskNameSize + " characters" ) ; } }
target:  Validate startTime and taskName are valid.