This guide gives hints how to manage, monitor and analyse performance of Java applications.
If you are facing performance issues and want to do a punctual analysis we recommend you to use glowroot. It is ideal in cases where monitoring in your local development environment is suitable. However, it is also possible to use it in your test environment. It is entirely free and open-source. Still it is very powerful and helps to trace down bottlenecks. To get a first impression of the tool take a look at the demo.
In case you are forced to use an JEE application server and want to do a temporary analysis you can double click your server instance from the servers view in Eclipse and click on the link Open launch configuration in order to add the -javaagent JVM option.
In case you want to manage application performance regularly we recommend to use JavaMelody that can be integrated into your application. More information on javamelody is available on the JavaMelody Wiki