Add step in Wildfly tests to copy junit report xml to host machine for jenkins reporting

[Mesbah-Alam]

Currently failures in Wildfly tests do not show up in the list of failures in the external test build https://ci.adoptopenjdk.net/view/Test_external/job/openjdk8_hs_externaltest_x86-64_linux/179/testReport/

We need to add a step in Wildfly tests to copy junit report xml to host machine for jenkins reporting.

Details:

We should make the same change for Wildfly tests as was made in the Jenkins test -- which is adding a docker cp step in the command line to copy the junit xml reports out of the docker container & into the host machine's workspace. This allows the Jenkins reporting plugin to generate test reports at the end of the test build.

Here's the PR for the Jenkins test change that can be taken as example: https://github.com/AdoptOpenJDK/openjdk-tests/pull/537/files.

So, we need to run Wildfly tests in a local machine, find out where it generates the xml junit reports and use that path in the docker cp command in playlist.xml.

[Mesbah-Alam]

@suman-mitra - since you added the Kafka tests originally, I'm assigning this issue to you. Please let me know if you have any question.

[suman-mitra]

The results seems to be available under the below directories. All the .xml files under the below dir's have the junit results

./kafka/clients/build/test-results/test/
./kafka/core/build/test-results/test/
./kafka/streams/streams-scala/build/test-results/test

We can also find them by using find *.xml

[smlambert]

Closing this in favour of #976