From the docs;

 "A matcher is created from a pattern by invoking the pattern's matcher
method. Once created, a matcher can be used to perform three different
kinds of match operations:

    *

      The matches method attempts to match the entire input sequence
against the pattern.
    *

      The lookingAt method attempts to match the input sequence,
starting at the beginning, against the pattern.
    *

      The find method scans the input sequence looking for the next
subsequence that matches the pattern."

So your matches will always fail.  You can either modify your regex to
match the entire sequence or use the find() method which searches.

import java.util.regex.*;

public class test {
    public static void main(String[] args) {
        String stuff =
         "<c:import url=\"/common/lib\" context=\"common\" /> >";

        Pattern p = Pattern.compile("context=\"");
        Matcher m = p.matcher(stuff);

        if (m.find()) {
            System.out.println("found");
            System.out.println("start="+m.start());
            System.out.println("end="+m.end());
        }
    }
}

C:\Documents and Settings\Knute Johnson>java test
found
start=28
end=37

On Thu, 8 May 2008 13:41:11 -0700 (PDT), "phillip.s.powell@gmail.com"
<phillip.s.powell@gmail.com> wrote, quoted or indirectly quoted
someone who said :

you are apparently confused between matching, finding and looking.

See http://mindprod.com/jgloss/regex.html