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HotSpot GC Thread CPU footprint on Linux
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 ...
OpenJPA: Memory Leak Case Study
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 ...
Java concurrency: the hidden thread deadlocks
Most Java programmers are familiar with the Java thread deadlock concept. It essentially involves 2 threads waiting forever for each other. This condition is often the result of flat ...
Java 8: From PermGen to Metaspace
As you may be aware, the JDK 8 Early Access is now available for download. This allows Java developers to experiment with some of the new language and runtime features of Java 8. One ...
QOTD: Java Thread vs. Java Heap Space
The following question is quite common and is related to OutOfMemoryError: unable to create new native thread problems during the JVM thread creation process and the JVM thread capacity. ...
Java Thread: retained memory analysis
This article will provide you with a tutorial allowing you to determine how much and where Java heap space is retained from your active application Java threads. A true case study from ...
Java Heap Dump: Are you up to the task?
If you are as much enthusiasm as I am on Java performance, heap dump analysis should not be a mystery to you. If it is then the good news is that you have an opportunity to increase ...
IBM AIX: Java process size monitoring
This article will provide you with a quick reference guide on how to calculate the Java process size memory footprint for Java VM processes running on IBM AIX 5.3+ OS. This is a complementary ...
java.lang.ClassNotFoundException: How to resolve
This article is intended for Java beginners currently facing java.lang.ClassNotFoundException challenges. It will provide you with an overview of this common Java exception, a sample ...
Java deadlock troubleshooting and resolution
One of the great things about JavaOne annual conferences is the presentation of several technical and troubleshooting labs presented by subject matter experts. One of these labs did ...
