private static void checkPreconditions ( final String regex , final String replacement ) { if ( regex == null ) { throw new NullPointerException ( "regex should not be null" ) ; } else if ( regex . length ( ) == 0 ) { throw new IllegalArgumentException ( "regex should not be empty" ) ; } if ( replacement == null ) { throw new NullPointerException ( "replacement should not be null" ) ; } }
Checks the preconditions for creating a new StrRegExReplace processor .