In an effort to help you get the most from our forums, we've compiled a list of tips for asking questions here. You can find the list in our FAQ section here. In particular, please see UseAMeaningfulSubjectLine
Since this is a "Servlets" forum, it is already assumed that your question will relate to servlets so 'servlet' is not a very meaningful subject line. Something like "Compiling Servlets" would give people a better idea what your question will be.
Again, welcome to JavaRanch and good luck with your question. -Ben