Jetrace is a Java Enterprise trace tool that J2EE developers and architects can use to discover erroneous execution flows in JSPs, Servlets, EJBs, JNDI calls, JDBC calls and sockets. It can be used to validate both code and design and to troubleshoot.
This project provides runtime performance monitoring and reporting for Java applications. It includes a simple API with timers and counters, data persistence, support classes and aspects (AspectJ & Spring AOP), and a reporting web application.
This profiler (JRE 1.5.0 only) uses JVMTI and native bytecode instrumentation for the analysis of the heap, reachable objects, execution time, garbage collection efficiency, code coverage and thread contention. No preparation steps required in build.
COMPAS J2EE is a non-intrusive performance instrumentation and monitoring toolkit for J2EE.
It uses adaptive monitoring to automatically adjust the target coverage. COMPAS is completely portable across J2EE application servers and OSs.
jCello is a Java instrumentation framework which can be utilized to understand application behavior and performance. This package includes an agent (client) and collection/reporting server.
Free Java monitoring library to easily instrument apps to measure performance detail over time with minimal overhead. Has dashboard, SVG graphs. Extends Jamon and its statistical data, same usage. http://www.e-peas.com/opensla/. JMX, SNMP planned.
JBoss Profiler Tomcat Portion is a tool to port JBoss Profiler from JBoss to Tomcat. It can control the start, pause and stop operations on logging Tomcat runtime data into file system by web interface or third-party tool as JConsole.