This is Weaver, a framework for writing multi-threaded Unit Tests in Java. Documentation is available in the docs directory, including a Users' Guide and a Tutorial. Post questions to thread-weaver@googlegroups.com REQUIREMENTS: Weaver was built with Java 6. (http://java.sun.com/javase/6) It requires the following components: Javassist. (http://www.csg.is.titech.ac.jp/~chiba/javassist). Version 3.8.1 or greater. Objenesis. (http://code.google.com/p/objenesis). Version 1.0 or greater. Cglib. (http://cglib.sourceforge.net). Version 2.2 or greater. To build the extensions: Easymock/Easymock Class Extension. (http://easymock.org). Version 2.4 or greater. To run the tests: Easymock/Easymock Class Extension. JUnit (http://www.junit.org). Version 4.5 or greater. To run the extensions tests: ASM (http://asm.ow2.org). Version 3.0 or greater. BUILDING: To build Weaver, edit the build.properties file and fill in the location of the required jars. The ant target "all" will build the main jar plus the extensions, and run all the tests. MAVEN: The MapDB group have been using Thread Weaver, and have produced a Mavenised version. For details of this, and for a discussion of the issues that they have had with the framework, see http://www.mapdb.org/blog/thread_weaver.html