You should set a break point and inspect the call stack that leads to
the ServiceLoader call. Maybe you have two different loaded versions of
ServiceLoader?
Am 22.04.2015 08:26, schrieb Johannes Hoffart:
Jan,
thanks for your response. This was also my first intuition, but I don't think
that I have conflicting versions here. I pasted the output of mvn
dependency:tree here: http://pastebin.com/jtaQejjR
I investigated further by putting a breakpoint in ServiceLoader.nextService():
The class org.eclipse.jetty.apache.jsp.JuliLog is tried for loading two times.
The first time it works fine, the second time the Error below is thrown. The
ClassLoader seems to be the same as well. I could not find any other maven
dependency that in the end boils down to org.eclipse.jetty.apache.jsp.JuliLog,
so I don't understand why it is loaded twice. Is there an easy way to figure
out which maven dependency actually causes the loading of this class?
Cheers
Johannes
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