Kieker is a framework for continuous monitoring and dynamic analysis of distributed software systems. Being designed for continuous operation, it induces only a low overhead. The TraceAnalysis tool allows to analyze and visualize trace information.
AOP based mock testing framework capable of testing arbitrary groups of classes in isolation, even if these are highly coupled to other system parts. Records and uses ("replays") mock objects automatically during run of a JUnit / TestNG test.
An aspect-oriented extension to JUnit (no affiliation with JUnit) that seeks to make mocking and stubbing in Java trivially easy. The goal is to bring to Java what Mocha brings to Ruby.
Glassbox is an automated troubleshooting and monitoring agent for Java apps that diagnoses common problems with one-click. Drop in a .war file from http://www.glassbox.com and find out what's wrong with your existing web apps, without any code chang
JRET (Java Reverse-Engineering Tool) is a program that is capable of reconstructing sequence diagrams from JUnit testsuites through dynamic analysis. It is written in Java/AspectJ and provides a GUI as well as command-line possibilities.
Surrogate is a complimentary unit testing framework, especially suitable for unit testing of large, complex Java systems. Surrogate integrates seamlessly with JUnit, MockEJB and various mock object implementations and is based on the AspectJ technology
JUnitMetrics is a tool that enables to measure basic JUnit and Cactus tests metrics (like number of tests, assertions, number of executed assertions). It is great, complementary solution to code coverage tools and mutation testers.