List/Grid Core Java Subscribe to the RSS feed of category Core Java

java-logo

Threading stories: ThreadLocal in web applications

This week I spend reasonable time to eliminate all our ThreadLocal variables in our web applications. The reason was that they created classloader leaks and we coudn’t undeploy ...
java-logo

Runtime vs Compile-Time Classpath

This should really be a simple distinction, but I’ve been answering a slew of similar questions on Stackoverflow, and often people misunderstand the matter. So, what is a classpath? ...
java-logo

HPROF – Memory leak analysis tutorial

This article will provide you with a tutorial on how you can analyze a JVM memory leak problem by generating and analyzing a Sun HotSpot JVM HPROF Heap Dump file. A real life case ...
java-logo

Java Thread CPU analysis on Windows

This article will provide you with a tutorial on how you can quickly pinpoint the Java Thread contributors to a high CPU problem on the Windows OS. Windows, like other OS such as Linux, ...
java-logo

Using the final keyword on method parameters

After some own confusion which specific meaning final declared method parameters have this blog entry will try to clarify this. At least the final keyword on method parameters can ...
java-logo

Java Concurrency with ReadWriteLock

Writing multithreaded java applications is not a piece of cake. Extra care must be taken because bad synchronization can bring your application to its knees. The JVM heap is shared ...
java-logo

Java Enum puzzler

Let’s suppose we have the following code:enum Case { CASE_ONE, CASE_TWO, CASE_THREE; private static final int counter; private int valueDependsOnCounter; ...
apache-lucene-logo

Lucene Overview Part One: Creating the Index

Introduction I’ve recently been working with the open source search engine Lucene. I’m no expert, but since I have just pored through some rather sparse documentation ...
java-logo

Fork and join in Java 7 – JSR 166 concurrency utilities

One of the most interesting improvements of Java 7 is the better support of concurrency. With JSR 166 Concurrency Utilities we get some very helpful improvements of concurrency. From ...
java-logo

IBM JVM tuning – gencon GC policy

This article will provide you detail on an important Java Heap space tuning consideration when migrating from a Java VM such as HotSpot or JRockit to the IBM JVM. This tuning recommendation ...
Java Code Geeks and all content copyright © 2010-2014, Exelixis Media Ltd | Terms of Use | Privacy Policy | Contact
All trademarks and registered trademarks appearing on Java Code Geeks are the property of their respective owners.
Java is a trademark or registered trademark of Oracle Corporation in the United States and other countries.
Java Code Geeks is not connected to Oracle Corporation and is not sponsored by Oracle Corporation.
Do you want to know how to develop your skillset and become a ...
Java Rockstar?

Subscribe to our newsletter to start Rocking right now!

To get you started we give you two of our best selling eBooks for FREE!

Get ready to Rock!
You can download the complementary eBooks using the links below:
Close