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.
FLABot is a fault-localization and debugging tool for Eclipse plug-ins, which is based on architectural information for aproximating those regions of code where faults are most likely originated.
Java Test Framework is another scripting environment, but with a Swing GUI (possible Swing Application Framework), version control on configuration files, profiling on the run, database storage and statistical processing on the results.
This project's aim is to create a Eclipse execution flow logger plugin. Thanks to Bil Lewis for his wonderful debugger "Omniscient debugger" http://www.lambdacs.com/debugger/ This is also based on the same idea using ASM library instead of BCEL librar
zCOBOL portable mainframe COBOL compiler, part of the z390 project
The zCOBOL portable mainframe COBOL compiler with support for compiling multiple dialects of COBOL into any one of several target language executable programs including HLASM compatible mainframe assembler, Java, C++, or Intel assembler. All downloads and other information are kept at the z390 project site; see the home page link for more information.
Swing Spy is java based Swing/AWT spy agent that prints the widget under the cursor (like Spy++ for Windows/MFC and SWT Spy for Java-SWT). Download from the homepage: http://www.nenoff.com/swingspy/
SimpleLogViewer is Java 2 based GUI application that display logging data. Can read a file or listen over a TCP socket. Use plugins/embedded scripts to Hide, Rewrite, Colorize lines of log.