I am trying to extend JMeter with a sampler that can just execute a command line. I copied ExampleSampler and ExampleSamplerGui classes from http://svn.apache.org/viewvc/jakarta/jmeter/trunk/src/examples/org/apache/jmeter/examples/sampler/ and I added the classes directory to user.classpath in jmeter.properties, but the example sampler does not show up in Edit->Add->Sampler menu.
1. I am not sure what the problem is, so I wonder if I missed any steps. 2. Could anybody point me to the current documentation which explains in English how to extend JMeter. 3. Also, is there a repository of JMeter extensions available online? In particular, is there something that add command-line execution functionality to JMeter. Thanks.

