RegEx Error for Huge File .. Please help , Its Urgent

Question

Hi all,
I am getting following exception,
does anyone know about it
java.lang.IndexOutOfBoundsException: No group 1
at java.util.regex.Matcher.group(Matcher.java:355)
at java.util.regex.Matcher.appendReplacement(Matcher.java:585)
at java.util.regex.Matcher.replaceFirst(Matcher.java:701)
at XSLT_OnlyJava.<init>(XSLT_OnlyJava.java:84)
at XSLT_OnlyJava.main(XSLT_OnlyJava.java:93)
Exception in thread "main"
I am parsing huge file with regex and replacing some part
Thanks,
Vinayak

Answer 1

sorry for late
This is my code
text = contents.toString();
          String regex = "<tu.*?/tu>";
          Matcher matcher = Pattern.compile(regex,Pattern.CASE_INSENSITIVE|Pattern.DOTALL).matcher(text);
          while(matcher.find()){
               tuvSegment = matcher.group();
               String segRegex = "<seg>.*?</seg>";
               Matcher segMatcher = Pattern.compile(segRegex,Pattern.CASE_INSENSITIVE|Pattern.DOTALL).matcher(tuvSegment);
               if(segMatcher.find()){
                    SegVal = segMatcher.group();
               String ReplsegRegex = "<seg />";
               Matcher ReplsegMatcher = Pattern.compile(ReplsegRegex,Pattern.CASE_INSENSITIVE|Pattern.DOTALL).matcher(tuvSegment);
               text = ReplsegMatcher.replaceFirst(SegVal);
The text string contains teh .tmx file
Thanks,
Vinayak