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Introspect on running programme, view and alter object fields and methods. Edit the code of any method at runtime; apply the changes to any combination of objects, such as an array, or a complete class. Complete rewrite underway available Jan 2007.
Yet another logger. Take a close look at it: It is very easy to use, very unified and extendable. You may attach your favourite set of loggers to this logger, and you still use only one API! This Java logger is used throughout the COMJAT.NET systems.
Our generous forever free tier includes the full platform, including the AI Assistant, for 3 users with 10k metrics, 50GB logs, and 50GB traces.
Built on open standards like Prometheus and OpenTelemetry, Grafana Cloud includes Kubernetes Monitoring, Application Observability, Incident Response, plus the AI-powered Grafana Assistant. Get started with our generous free tier today.
Fitster is a graphical front end to the open source Fit testing framework developed by Ward Cunningham. (fit.c2.org)
Our goal is to create a platform independent interactive application aimed at testers to assist with the assembly and execution of Fit
A bug profiling and -reporting program/lib written in java. It enables implementing (java-)programs to generate meaningful reports in case of an error. They can be submitted (automaticly/dialog) by mail (text, html, bugzilla ..) without external programs
Logmine is a tool to facilitate logging to an RDBMS. Logging to a true database can make logs far more useful. While this is written in Java/JDBC, it uses a standard HTTP request, thus can be useful for any language/database.
The beSee-2-x architecture brings JVM wide instrumentation for AOP systems, independant from bytecode kit (BCEL, Javassist).
A plugin is provided to instrument BEA WebLogic (v7) for tracing purpose (servlet->EJB->CMP->DB), with full JMX capabilities.
Binah is a tool that allows both real-time and off-line visualization of multi-threaded Java program execution to provide an additional perspective for understanding and debugging.
Deploy in 115+ regions with the modern database for every enterprise.
MongoDB Atlas gives you the freedom to build and run modern applications anywhere—across AWS, Azure, and Google Cloud. With global availability in over 115 regions, Atlas lets you deploy close to your users, meet compliance needs, and scale with confidence across any geography.
A facility to keep a history of context information during runtime and then dumping it in a separate file when a problem occurs (similar to core dump).
JCola is a file tailing application written in Java Swing. This multithreaded application can tail an unlimited amount of logfiles concurrently and simulates "tail -f" with much more functionality.
araSpect is a server side object inspector for web applications. Through a web interface you can drill down in your server side java beans. It is very easy to install and can be added to a deployed application. There is special support for Struts.
Cricket Cage automatically creates JUnit TestCases for repeatable bugs and test scenarios. Include Cricket Cage's AspectJ code to install a code generator, then run the program to generate the TestCase. Finally, add the test case to your build.xml.
ALF, The Automated Logging Framework, is a native logging framework for Java with the unique advantage of supporting automated method tracing. This platform-independent library allows developers to debug their applications quickly without adding code
Orome is a tool for automating System or Acceptance tests (also Unit test though this is not the focus) for web-based systems. Orome takes a set of static HTML pages defining a walkthrough of (part of) the systems and tests it against the running system.
Java Console is a Java Command promt tool intended for Software Developers, System Administrators and as a plug in to other applications. It is a very powerful console client just run it and have fun
Allows JDBC resources to be monitored. You can see when java.sql objects are being opened and closed and can see the line of code where a resource that is still open was originally opened.
Bean Bowl is the a fun and useful Java lab, allowing you to play around with Java classes and objects using direct manipulation techniques instead of writing long main() methods. Use it either as an application or as a GUI component framework for you own
xdProf is a tool that captures and analyzes stack traces sent at a fixed interval from Java Virtual Machines in a distributed system. The xdProf client uses a C/C++ Java Virtual Machine Profiling Interface (JVMPI) library and works on many platforms.
httptrace - TCP/HTTP trace utility (for Java or Win32/jview.exe)
Listens on a TCP/IP port, redirects data to another port and writes traces.
Several options (search for patterns, ...).
OpenTNF is a system-level tracing facility for capturing and presenting diagnostic information and performance metrics. Linux/Intel (kernel 2.2.x) is the initial target platform. The OpenTNF project is seeking developers for ports to other platforms.