Java EE Support Patterns

HotSpot 32-bit to 64-bit upgrade: what to look for

noreply@blogger.com (Pierre-Hugues Charbonneau) — Thu, 02 May 2013 16:38:00 +0000

This short post will test your knowledge on JVM and project delivery skills; especially regarding JVM upgrades. I’m looking forward for your comments and answers on how to approach this type of projects in order to say away from...

Minecraft Java NullPointerException

noreply@blogger.com (Pierre-Hugues Charbonneau) — Tue, 16 Apr 2013 13:52:00 +0000

I have been receiving recently an increased number of comments and emails regarding Minecraft Java related errors. While this Blog is dedicated to general Java and Java EE troubleshooting, I’m still willing to help non Java programmers...

HotSpot GC Thread CPU footprint on Linux

noreply@blogger.com (Pierre-Hugues Charbonneau) — Mon, 15 Apr 2013 21:22:00 +0000

The following question will test your knowledge on garbage collection and high CPU troubleshooting for Java applications running on Linux OS. This troubleshooting technique is especially crucial when investigating excessive GC and / or...

OpenJPA: Memory Leak Case Study

noreply@blogger.com (Pierre-Hugues Charbonneau) — Wed, 13 Mar 2013 15:05:00 +0000

This article will provide the complete root cause analysis details and resolution of a Java heap memory leak (Apache OpenJPA leak) affecting an Oracle Weblogic server 10.0 production environment. This post will also demonstrate the importance to...

Web and Java learning application

noreply@blogger.com (Pierre-Hugues Charbonneau) — Wed, 06 Mar 2013 12:16:00 +0000

You may have noticed that we started to release training and tutorial videos in 2013. In order to further improve and simplify your learning process, we will be releasing a free Java and Java EE troubleshooting learning platform (application) in...