Tutorials

This page provides a consolidated and split view of all the tutorials available from this Blog. Tutorials include articles on Java, Java EE, monitoring and more.



Simply browse through the different sections and select the topic of your choice.
As usual, please feel free to post any question or comment on any topic.

Java tutorials

Common Java problems

·         java.lang.NullPointerException: How to resolve

·         java.lang.NoClassDefFoundError: How to resolve – Part 1

·         java.lang.NoClassDefFoundError: How to resolve – Part 2

·         java.lang.NoClassDefFoundError: How to resolve – Part 3

·         java.lang.NoClassDefFoundError: How to resolve – Part 4

·         java.lang.ClassNotFoundException: How to resolve

HashMap problems

·         Java 7: HashMap vs ConcurrentHashMap

java.lang.OutOfMemoryError problems

·         Weblogic HttpSession memory footprint analysis

·         OutOfMemoryError Help Guide – Part 1

JVM and Java Heap

·          Java Heap Space: What is it?

·          Java HotSpot VM PermGen space

·         JVM options – HotSpot VM Standard Options

·         Java Heap space - HotSpot VM

·         Java Heap Space – IBM VM

·         Java Heap Space – JRockit VM

·         IBM JVM tuning – gencon GC policy

·         Weblogic PermGen space

·         5 tips for proper Java Heap size

·         Java Thread: retained memory analysis

·         HotSpot GC Thread CPU footprint on Linux

JVM memory analysis

·         HPROF – Memory leak analysis tutorial

·         GC overhead limit exceeded - Java Heap analysis

·         IBM SDK Heap Dump HttpSession footprint analysis

·         Class loader memory leak debugging tutorial for IBM VM

·         Java Heap Dump: Are you up to the task?

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

Java Threads

·         Java deadlock troubleshooting and resolution

JDK core

·         verbosegc output tutorial - Java 7

·         Java DNS Cache Reference Guide

Java 7

·         Java 7 features – PermGen removal 

Java 8

·         Java 8: From PermGen to Metaspace 

Java EE  tutorials

JDBC

·         Enabling Oracle JDBC Driver Debug

Root cause analysis

·         Root cause analysis approach for complex Java EE problems

Production support

·         8 Ways to improve your Java EE Production Support skills

Monitoring & capacity planning

JVM

·         Capacity planning analysis of a 32-bit vs. 64-bit IBM Java VM

·         How to monitor native memory utilization of a 32 bit IBM Java 1.5 VM running on AIX 5.3

·         IBM AIX: Java process size monitoring

Middleware

·         Weblogic Thread Monitoring Tips

·         Oracle Weblogic stuck thread detection