Category Archives: java

JacORB Configuaration

Add the following JacORB  properties to java command line or update in jacorb.properties file To enable general debug logs add the below line -Djacorb.log.default.verbosity=4 To enable notification debug logs add the below line -Dorg.jacorb.notification.log.verbosity=4 To increase POA Queue. Increase this … Continue reading

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Hibernate : Adding an enum as a property

Using Hibernate Annotations: @Entity public class TestEntity {   @Enumerated(EnumType.STRING)    @Column(name=”ENUM_TYPE”)    private TestEnum testEnum;  } Using XML Based Mapping :   Add  hibernate-annotations.jar in your classpath during deployment but there’s no compile-time dependency: <property name=”testEnum” length=”30″ column=”testEnum” lazy=”false”> <type … Continue reading

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YourKit

I found YourKit Java profiler is good for CPU and memory profiling of java applications. It gave better , useful & smarter details compared to other profilers.

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Design Techniques

Some usefull java design techniques articles by Bill Venners http://www.artima.com/designtechniques/

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Java in Telecommunications – Telemangement Forum and OSS/J

By Gero Vermaas Source:http://blog.xebia.com/2007/04/19/java-in-telecommunications-–-telemangement-forum-and-ossj/comment-page-1/#comment-8950 As promised in the first post in this series, we’ll now zoom in on the Telemanagement Forum (TMF) and OSS/J. This post will be a bit theoretical, but I promise that the next one will be … Continue reading

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Java in Telecommunications – Introduction

By Gero Vermaas Source:http://blog.xebia.com/2007/03/30/java-in-telecommunications-introduction/ Why a blog on Java and telecommunications? There is no other industry for which the Java Community Process hosts so many specifications and I wonder if people are aware of this. Additionally, in May I’ll be … Continue reading

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Java Virtual Machine (JVM) Heap Sizing

Report on JVM Heap sizing ( based on various web resources): 32-bit JREThe maximum theoretical heap limit for the 32-bit JVM is 4G. Due to various additional constraints such as available swap, kernel address space usage, memory fragmentation, and VM … Continue reading

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