Developing NetBeans Sources APIs CVS Contributing Devel. This project is just getting started.
Docs are a little thin right now.
The library is in the logger.jar file. Details on the syntax needed for setting trace flags are in the two javadoc links below. JavaDoc for TraceLogger Template used by some TraceLogger users. NbTraceErrorManager - this explains how to use the TraceLogger library via the OpenIDE ErrorManager.