RFR: 8097: Fix project setup of uitests/org.openjdk.jmc.test.jemmy [v2]

[Christoph Langer]

> The project uitests/org.openjdk.jmc.test.jemmy is a plugin project which is a helper library for other uitests.
> 
> Currently, the sources reside in the src/test/java folder and the eclipse configuration would also place the compiled classes in target/test-classes.
> When one does a plain maven build, without Eclipse involvement or using the clean target, everything works fine since then the compiled classes are generated into target/classes despite their source location.
> However, building the project in Eclipse generates the classes in target/test-classes and this will cause the surefire plugin to pick up some classes as potential tests when running mvn verify thereafter. Since the test.jemmy project is not configured for launching a test runtime, we see bundle resolver failures.
> 
> I fix this by moving the source files from src/test to src/main and fixing the Eclipse configuration files. I also removed the target-platform-configuration section from the pom.xml since it is redundant (already inherited by a parent pom).

Christoph Langer has updated the pull request incrementally with one additional commit since the last revision:

  Update copyright year

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Changes:
  - all: https://git.openjdk.org/jmc/pull/503/files
  - new: https://git.openjdk.org/jmc/pull/503/files/9268a4d1..d87a7e5a

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jmc&pr=503&range=01
 - incr: https://webrevs.openjdk.org/?repo=jmc&pr=503&range=00-01

  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jmc/pull/503.diff
  Fetch: git fetch https://git.openjdk.org/jmc.git pull/503/head:pull/503

PR: https://git.openjdk.org/jmc/pull/503