Diagnostic Tool for Java Garbage Collector

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Platform requirements for Diagnostic Tool for Java Garbage Collector

Operating systems: Any platform with a Java Run-time Environment installed (JRE 1.3 or above)

Java tools:

• JRE 1.2.2 or above
• Two Java libraries in JFreeChart, Version 1.0.0-rc1; available in SourceForge.net (extract from jfreechart-1.0.0-rc1.zip) or on the JFreeChart project home page):
  • jfreeChart-1.0.0-rc1.jar
  • jcommon-1.0.0-rc1.jar

Installation instructions for Diagnostic Tool for Java Garbage Collector

1. Obtain two Java libraries in JFreeChart, Version 1.0.0-rc1 (jfreeChart-1.0.0-rc1.jar and jcommon-1.0.0-rc1.jar) in either of these two ways:
   • Go to SourceForge.net and download jfreechart-1.0.0-rc1.zip; then extract from it the two JAR files.
   • Go to the JFreeChart project home page).
2. Extract the contents of GCCollector.zip in a directory of your chioce.
3. Place jfreeChart-1.0.0-rc1.jar and jcommon-1.0.0-rc1.jar in the lib directory that was created when you unzipped GCCollector.zip.
4. In order to run Diagnostic Tool for Java Garbage Collector, execute GCCollector.bat, which is located in the directory where you unzipped GCCollector.zip.

Notes:

• The file GCCollector.bat is an example of how to execute Diagnostic Tool for Java Garbage Collector; you may need to adapt it to your environment. The javaw command in the file has the parameter "-Xmx300m", which sets the maximum Java heap size to 300 MB. This should be enough for working with more than ten thousand garbage collection cycles; please feel free to modify the Xmx parameter if you experience Out of memory errors.
• In the same directory, you will find two sample files: sample150_stderr.log and sample142_stderr.log; they should be useful if you want to try Diagnostic Tool for Java Garbage Collector but don't have your own verbose collection data file.