Regular expression never matches

I have the following entries in my log files:

09-22-11 12:35:09 1ms   INFO         ...erChangeSetListener:91           11  processing changeSet for class:4328,at version:1316720109100
09-22-11 12:35:09 779ms INFO         ...erChangeSetListener:91           11  processing changeSet for class:4334,at version:1316720109882
09-22-11 12:35:09 1ms   INFO         ...erChangeSetListener:91           11  processing changeSet for class:4328,at version:1316720109882
09-22-11 12:35:11 1s    WARNING      QueryServiceImpl:100                -   no existing index for class:4328
09-22-11 12:35:11       SEVERE       QueryRequest:107                    7   Aod query resulted in error:No index available for class:4328
09-22-11 12:35:11       SEVERE       AuthenticationTask:48               -   EndUserException: an error occurred when p开发者_如何学Crocessing the query                                  Dump: /data1/amir/dev/devots/logs/dumps/22i123511.dump

that I'm applying this regexp to :

 final String pattern = "^(\\d{2}-\\d{2}-\\d{2} \\d{2}:\\d{2}:\\d{2})"  //date
                        + "[.]*" //ignore for now
                        + "(SEVERE|WARNING|INFO|CONFIG|FINE|FINER|FINEST)" //severity
                        + "[.]*"; //ignore the rest for now

 final Pattern regex = Pattern.compile(pattern);
 final Matcher m = regex.matcher(currentLine);
 if (m.matches()) {
     for (int i = 1; i <= m.groupCount(); i++) {
         System.out.format("[%d] \"%s\"%n", i, m.group(i));
     }
 }

But my matches never returns true. I don't understand why. I'd like to resiliently handle these different types of entries. Notice the last log entry has a dump file associated with it.

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The problem is here:

                    + "[.]*" //ignore for now

The dot in "[.]*" only matches a literal dot, it does not have its usual meaning of "any non-line-separator character." You need ".*"

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You can't do [.]*. .* will suffice. You want any character, not a dot.

Test your regex here: http://regexpal.com/

Start with a very simple match and start adding complexity bit by bit.

Also, for clarity, consider naming your groups like:

^(?<date>\d{2}-\d{2}-\d{2} \d{2}:\d{2}:\d{2}).*(?<type>SEVERE|WARNING|INFO|CONFIG|FINE|FINER|FINEST).*