freshmeat.net: Project details for Extensible Java Profiler

freshmeat.net: Project details for Extensible Java Profiler: "Extensible Java Profiler (EJP) is a profiling tool for Java with a scalable and extensible architecture. It is compatible with any language that uses the Java backend, and is based on the Java Virtual Machine Profiler Interface (JVMPI). Unlike Sun's hprof tool, which generates statistical information, it logs every single method invocation and can be used to trace the execution of small parts of Java programs and display it in hierarchical trees with some elements hidden or highlighted."