Adrianos Dadis

About Adrianos Dadis

Adrianos is working as senior software engineer in telcos business domain. Particularly interested in enterprise integration, multi-tier architecture and middleware services. He mainly works with Weblogic, JBoss, Java EE, Spring, Drools, Oracle SOA Suite and various ESBs.

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Set WildFly binding address and shutdown using CLI

It’s very easy to bind WildFly on a hostname/IP just using command line parameters. I have a simple GNU/Linux box that I use it to play with various things, one of them is WildFly. I start WildFly listening on a specific IP usin ...
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Add Apache Camel and Spring as jboss modules in WildFly

These days I am playing with Wildfly and Apache Camel and Spring. A simple way to communicate between EARs / WARs is using direct-vm component of Camel. There are many ways to achieve this with or without Camel. Camel works like a ...
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Java heap space, native heap and memory problems

Recently, I was discussing with a friend, why the Java process uses more memory than the maximum heap that we set when starting the java process. All java objects that code creates are created inside Java heap space, which its siz ...
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Invaluable books for an enterprise software engineer

I am again in the design phase of a very large project. The project context is to provide a new solution for the core services and core integration infrastructure around the prepaid platform on the largest telecommunication organi ...
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Version control branching strategies

Almost two years ago we started a new project (related to SOA/BPM infrastructure) on a large telco organization. Project is going very well and run on production since last summer. We develop more and more modules and things going ...
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Java Thread at RUNNABLE state is not really running

Recently, I was doing an analysis/tuning on a Java application server installation in order to identify the bottlenecks and fix them. The most common action in such procedure (tuning) is to retrieve many Thread dumps, when system ...
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JRockit – JRCMD useful commands

I have been using JRockit since many years 2007. I find it slower than Hotspot, but it has been always better on diagnosis and analysis of problems. Since last summer, I have been working for an international telecommunication sys ...
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Setup Git server with read/write HTTPS on Debian

Three months ago we decided to move our projects to Git. I guess you already know the advantages of Git over Subversion, as there are too many discussions for this subject. I will describe here a fast and minimal configuration of ...
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Beneficial CountDownLatch and tricky java deadlock

Have you ever used java.util.concurrent.CountDownLatch? It’s a very convenience class to achieve synchronization between two or more threads, where allows one or more threads to wait until a set of operations being performed in ...
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Concurrency optimization – Reduce lock granularity

Performance is very important in high load multi-threaded applications. Developers must be aware of concurrency issues in order to achieve better performance. When we need concurrency we usually have a resource that must be shared ...
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