An adaptable, platform-agnostic application incident reporting infrastructure ranging from logging libs and webservice-based reporting to a J2EE logging server to a pluggable connection to issuemanagers.
JRat is the Java Runtime Analysis Toolkit. Its purpose is to enable developers to better understand the runtime behavior of their Java programs. The term behavior includes, but is not limited to performance profiling.
JTombstone is a program for finding dead code in your Java programs. It reports on dead code at the method level, by processing Java class files. No source code is needed to use it. JTombstone is a Java program and requires JDK 1.4 or later.
Yet Another Java Profiler (YaJP) is a profiler tool that uses the JVMTI interface. It can be used to selectively trace a java program and store this information in a compressed logfile. This logfile can then later be analyzed using the same tool.