Some weeks ago I evaluated some SSH libraries for Java. The main requirements to them are file transferring and file operations on a remote machine. Therefore, it exists a network protocol based on SSH, SSH File Transfer Protocol (or SFTP). So I needed a SSH library that supports SFTP. A research shows that it exits …

Since SonarQube 4.2. the test report isn't generated by the Sonar Maven Plugin during a Maven build (see SonarQube's blog post) . Therefore, the test report has to be generated by another plugin before Sonar Maven Plugin collects the information for the SonarQube server. Here, Jacoco Maven Plugin can help. It has the …

From a certain point on, an application has to be configurable. Spring Framework has a nice auxiliary tool for this issue since the first version 0.9 , the class PropertyPlaceholderConfigurer and since Spring Framework 3.1 the class PropertySourcesPlaceholderConfigurer. When you start a Google search for …

Guest Contribution by Markus Jenderek "Quality exists when the price is long forgotten", said Mr Royce to Mr Rolls with his petrol smeared face or Mr Rolls to Mr Royce - but anyway. The question is about which price is he talking about? Money, yes of course! But what about Pain, Features, Competition, Time, …

This post describes how to set up a Maven project for a Spring web application with Hessian Service. It also shows how to set up the deployment for exposing the Hessian service and how to set up a client to consume the Hessian service. The Spring Framework version is 3.1.1.RELEASE and the Hessian version is 4.0.7. …

To read resources from classpath, you can use the Spring class ClassPathResource. The constructor with one argument reads only resources from file system. But sometimes you want to read a resources from a jar file in the classpath. For this case, you must build an own URLClassLoader from the URL of the jar file and use …

This post describes how to prepare a release for Maven project with a set of Maven Plugins. Background The release preparation phase is built of following common steps: Build the artifact to verify that the build is successful. Run the unit tests of the artifact. Update the version of the artifact to the release …

Whensoever, you call, for example, java -cp ../lib/hsqldb.jar org.hsqldb.Server --props ../bin/config/server.properties following exception is thrown: 1[Server@e0e1c6]: [Thread[main,5,main]]: checkRunning(false) entered 2[Server@e0e1c6]: [Thread[main,5,main]]: checkRunning(false) exited 3[Server@e0e1c6]: …

In the last weeks I familiarised myself with OSGi. Two books were very helpful: Modular Java: Creating Flexible Applications with OSGi and Spring by Craig Walls OSGi für Praktiker - Prinzipien, Werkzeuge und praktische Anleitungen auf dem Weg zur kleinen SOA by Bernd Weber, Patrick Baumgartner, Oliver Braun (in …