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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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 ...
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 ...
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. ...
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) ...
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 ...
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 ...
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 ...
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 ...
