You're working with OSGi because it's flexible, you like components, and so on, and you also like Spring because you love writing ...

A quick way to find Tomcat 's server version from command line is to run: java -cp catalina.jar org.apache.catalina.util.ServerInfo ...

Now that we know how to zip in Java , let's see how to unzip using the same Apache Commons Compress library: import java.util.*; ...

Note: it is possible to perform zip operation with standard Java libraries, but more superfluous steps are required (ie: more streams have t...

Java versions before 7 amazingly lack a simple (one method) way of moving a file or directory to another directory. Luckily there's th...

As for the cryptography algorithms, Java offers native libraries for hashing too. In this example I'll describe how to use apply ...

To reach an application published inside Apache Tomcat using the host's IP ( localhost does not work for remote access), you need to m...

While working on a rather large JSP with Java and Tomcat , you may have Jasper sooner or later raise the " code too large for try sta...

In this post we will give a fair example of the workings of the OSGi DS Declarative Services remoted with ECF . For this example we will ...

In this post we will give a fair example of the workings of the OSGi DS Declarative Services remoted with DOSGi . We can use either one ...

In this post we will give a fair example of the workings of the OSGi Blueprint Services . We can use either one of the following framework...

There are two possible PageRank implementations: the power method and the iterative method. We will describe both. To check the result...

Note that this guide also applies to other distros, but the commands (I don’t think the package too) will be different. / Questa guida si ap...