Like the well-known tee program on UNIX systems, HttpTea is sitting between the client and the server of a HTTP connection. It allows you to modify the requests and responses before submission. HTTPS traffic can be decrypted an displayed as well.
Elvyx is a tool designed to monitor and profile the jdbc activity on java projects. This jdbc profiler has a server with a built-in db and a client to improve the experience.
JHeap provides the toolset to help Java developers discover and fix the root cause of memory issues in their applications. JHeap integrates easily with your application server and has been designed to be used in production environments with low overhead.
NetworkTools has 2 components: A protocol analyzer which plays a TCP client or server or pipeline, which sits between a client and server and shows how they communicate. A port scanner can scan a range of IP addresses and ports. See screenshots.
How Good are your JUnit Tests? NoUnit measures your Junit tests in your project using Java, XML and XSLT.
NoUnit gives a picture of your code , like a graph gives you a picture of a set of figures, to allow you to see what is *really* going on.
An Eclipse 3.0 compatible plugin which allows BEA's WebLogic Server (6.1, 7.1 and 8.1) to be managed from within eclipse and thus easily debug deployed J2EE applications in BEA.
araSpect is a server side object inspector for web applications. Through a web interface you can drill down in your server side java beans. It is very easy to install and can be added to a deployed application. There is special support for Struts.
SimpleLogViewer is Java 2 based GUI application that display logging data. Can read a file or listen over a TCP socket. Use plugins/embedded scripts to Hide, Rewrite, Colorize lines of log.