Hello, Incompatible changes explains your issue: - jmeter.apache.org/changes.html
The *commons-lang-2.6.jar *has been removed from embedded libraries in jmeter/lib folder as it is not needed by JMeter at run-time (it is only used by Apache Velocity for generating documentation). If you use any plugin or third-party code that depends on it, you need to add it in jmeter/lib folder @ubikloadpack On Tuesday, October 22, 2013, Glenn Caccia wrote: > I just downloaded JMeter > 2.10 and also added the JMeter plugins from jmeter-plugins.org. They > have a Rest Sampler that is failing to load in 2.10. Getting an error > message about failing to load a class: "Cannot find class: > org/apache/commons/lang/NotImplementedException". I found that 2.10 does > not > include commons-lang-2.6.jar in the LIB folder. Copying this in from > the 2.9 install fixes the problem. Was commons-lang-2.6.jar > intentionally dropped from 2.10 or is this just an issue with the binary > package for Windows? Just wondering if this is something that will require > an update from jmeter-plugins or if this is something that needs to be > updated on the JMeter side. > -- Cordialement. Philippe Mouawad.
