question: private int messageConvertReturnValue ( String messageText , int defaultReturnCode ) { int i = 0 ; for ( String workText : messageTextException ) { if ( workText == null ) { return defaultReturnCode ; } final int workTextLength = workText . length ( ) ; if ( messageText . regionMatches ( 0 , workText , 0 , workTextLength ) ) { return returnValueException [ i ] ; } i ++ ; } return defaultReturnCode ; }
target:  Find the message in the list of known messages. convert message text to return value when message text matches string then return cause of error