Andrej Koelewijn

I’m running ServiceMix on a machine which doesn’t have internet access, so installing and upgrading features is a bit hard. You can, however, install features from an internal maven repository like Nexus. This post explains how you can configure which maven repositories should be used by ServiceMix.
The OSGI implementation of ServiceMix (Apache Felix/Karaf) has a [...]

Apache ServiceMix 4.2 includes Apache Camel 2.2.0. The following steps outline how you can add Apache Camel 2.3.0 in the same ServiceMix instance. This example uses the versions as released by Progress Fuse.
Go to the ServiceMix console, either by starting servicemix, or by ssh-ing into ServiceMix. To install Camel 2.3 we need to add a [...]

The following example illustrates how you can implement a composite service using Apache Camel. The service is exposed as a REST resource, and it uses two other resources to collect the data required.
The composite service will enable a client to get info on a customer and it’s orders. To get this data the composite service [...]

Nexus is a maven repository manager. You can use Nexus to host your own maven repository for artifact created in your company, or for caching external artifacts.
Getting started with Nexus is pretty easy. Download the application. The package contains a webserver, so you don’t have to have a java container running. Simply unpack the [...]

I ran into the following problem yesterday while building a rest service using resteasy: the code would compile ok, but the unit tests wouldn’t run. I got the following exception in the output of the unit tests:

java.lang.ClassFormatError: Absent Code attribute in method that is not native or abstract in class file javax/ws/rs/ext/RuntimeDelegate
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:621)
at [...]

Use the following to configure git to use diffmerge for diffing and merging files:

git config –global diff.tool diffmerge
git config –global difftool.diffmerge.cmd "diffmerge \"\$LOCAL\" \"\$REMOTE\""

git config –global merge.tool diffmerge
git config –global mergetool.diffmerge.cmd diffmerge –merge –result=\"\$MERGED\"
\"\$LOCAL\" \"\$BASE\" \"\$REMOTE\"
git config –global mergetool.diffmerge.trustexitcode false

The following will show diffmerge with the two versions of myfile.java side by side:

git [...]

Google used to be a search company making profit on adds. Today’s release of the Nexus One ’superphone’ illustrates that Google is turning into the next Microsoft: a supplier of software platforms and applications. The Nexus One isn’t a phone, it’s a device to access the web. It’s just another Operating System to use [...]

Lots of news on Chrome OS today, but nothing to suprising as far as i can tell. Chrome OS is basically just an operating system than boots straight into a (full screen) browser. All your apps will be web apps.
Seems logical. Most of the time i just boot my computer to get online: read news, [...]

I did a small proof of concept yesterday: a wicket web application using embedded Mule to connect to some services. Problem is that it had to run on OC4J 10.1.3.4.0 with Java 5. Got it running pretty fast, some tips:

Oracle’s xml parser didn’t like some of Mule’s xsd files. You can solve this by [...]

Here’s a simple file monitoring tool which uses cometd to push file changes to a webpage.
The server part consists of a groovy script which uses Apache Camel to monitor some files. It then uses Apache Camel to push the lines added to the files to the browser with Cometd. In the webpage a bit [...]