Hi Theodore, Thanks a lot for reporting this. It is true that many people have encountered it also during the training sessions.
Cheers, Kostas > On Nov 16, 2016, at 2:49 PM, Theodore Vasiloudis > <theodoros.vasilou...@gmail.com> wrote: > > Hello all, > > I was preparing an exercise for some Master students and I went through > running the Java > quickstart setup [1] again to verify everything works as expected. > > I ran into a problem when running from within IDEA, we've encountered this in > the past during trainings. > > While the quickstart guide indicates that you should be able to just run the > examples > from the Maven archetype that was not the case for me, what I got instead was > ClassNotFound exceptions because the default run configuration does not pull > in > the dependencies as it should. > > What I needed to do to get the examples to run from within the IDE was: > > 1) In project structure, add a new module say "mainRunner" > 2) In mainRunner's dependencies add the main module (say "quickstart") as a > module depency. > 3) In mainRunner's dependencies add the rest of the project library > dependencies. > 4) In the run configuration for the example change the "Use claspath of > module" to mainRunner from quickstart. > > If this is a problem other people have ran into (as evidenced by [2] [3]) I > think we should either include the instructions in the docs, or if possible > change the Java quickstart archetype to include the extra module. > The Scala quickstart has the mainRunner module already, and the appropriate > instructions > on how to run from within IDEA are in the docs. > > I saw there's a PR [4] for the quickstart already, we could include this > there. > > > [1] > https://ci.apache.org/projects/flink/flink-docs-release-1.1/quickstart/java_api_quickstart.html > > <https://ci.apache.org/projects/flink/flink-docs-release-1.1/quickstart/java_api_quickstart.html> > [2] > https://stackoverflow.com/questions/40073413/apache-flink-wordcount-example-exception-in-thread-main-java-lang-noclassdef > > <https://stackoverflow.com/questions/40073413/apache-flink-wordcount-example-exception-in-thread-main-java-lang-noclassdef> > [3] > https://stackoverflow.com/questions/30571618/executing-sample-flink-program-in-local > > <https://stackoverflow.com/questions/30571618/executing-sample-flink-program-in-local> > [4] https://github.com/apache/flink/pull/2764 > <https://github.com/apache/flink/pull/2764>
