Java Memory Leak Analysis

Contrary to popular belief, Java Memory Leaks are possible, and are actually harder to isolate and rectify. I was tech lead for developing a data collection agent and leak analyzer based on Leakbot technology. Released in Rational Application Developer (RAD) 6.0 in June 2005.

With: , , Nick Mitchell, ,

Product/Tool Info:

Name: Rational Application Developer
Feature: Java Memory Leaks
OS: Windows, Linux
Official Web Site: http://www.ibm.com/developerworks/rational/products/rad/
Download Link: http://www.ibm.com/developerworks/downloads/r/rad/
Date: June 2005

UPDATE: It is no more available in RAD (release 7.0 onwards), but bundled as Memory Dump Diagnostic for Java (MDD4J) tool with IBM WebSphere, see resources below for more info.

Resources

• Runtime problem determination with IBM Rational Application Developer. Tanuj Vohra. IBM developerWorks. Dec 2004.http://www.ibm.com/developerworks/rational/library/dec04/vohra/
• Java memory leaks -- Catch me if you can. Satish Chandra Gupta, Rajeev Palanki. IBM developerWorks. August 2005.http://www.ibm.com/developerworks/rational/library/05/0816_GuptaPalanki/
• Need for speed -- Eliminating performance bottlenecks. Satish Chandra Gupta. IBM developerWorks. October 2005.http://www.ibm.com/developerworks/rational/library/05/1004_gupta/
• What lies beneath -- Discovering untested code. Satish Chandra Gupta. IBM developerWorks. January 2006.http://www.ibm.com/developerworks/rational/library/06/0124_gupta/
• Memory leak detection and analysis in WebSphere Application Server: Part 1, Part 2
• WebSphere Application Server Help: Diagnosing out-of-memory errors and Java heap memory leaks
• IBM WebSphere Real Time 1.0 Help: Diagnosing OutOfMemoryErrors
• There is a MDD4J discussion forum on IBM developerWorks where you can post your queries.