So something didn't work as you expected it to? You think that Maven is broken. What should you do?
Here's a list of actions that you can take:
Apart from the central Maven site, each of our plugins has a website. Go to the plugins page and follow the link to the plugin you are having problems with.
Before you start intensive investigations on your problem, you should try to update Maven and/or the plugins in question to the latest stable release. After all, the issue you encounter might have been fixed already. To find out what is the latest stable release version, consult Maven's download section and the plugin index.
Someone else might have experienced the same problem as you before. A list of mail-archives can be found on mailing list index page. Please search one of them before going any further.
Our community is very helpful, just ask it the right way. See the references section, at the end of this page, for info on how to do that. Subscribe to the users-list and describe your problem there. Don't expect to get an answer right away. Sometimes it takes a couple of days.
If it turns out that there is indeed something wrong with Maven or one of the plugins, you should report it to our issue management system JIRA.
First of all you need to create an account in JIRA. This is so that we can communicate with you while we work together on the issue. Go to the sign up form to create an account if you don't already have one.
If the problem is in one of the plugins, check the site of that plugin to get the correct link. Each plugin has its own section in JIRA, so using the correct link is important. Click on Project Information and then Issue Tracking. On that page you will find the correct link.
If the problem is in Maven itself you can find the appropriate link on the issue tracking page.
Just describing the problem is not enough. It takes a developer a lot of time to make a usable POM to even attempt to assess the problem. Issues that states problems without something usable to try out will be closed as incomplete.
Please attach a working POM, or a set of POMs, that we can download and run. We appreciate reports, but if you don't have something usable for us it's incredibly hard for us to manage the issues. A POM goes a long way to helping us resolve problems.
Create a POM that can be used to verify that it is a bug. If your pom uses plugins, make sure that you have specified the version for each and every plugin. If you don't, then we might not be using the same version as you are when we test it.
What we like best are patches that fixes the problem. If you want to create a patch for an issue please read the Maven Developer Guide first.