Self-contained example of a classpath problem occuring in IDEs in a gradle multiprojects.
Here the project-tests project depends on modules:
project1(that depends onlog4j-1.2.14)project2(that depends onlog4j-1.2.17)
The ClasspathTest junit checks that only one of log4j jars is present in test classpath.
When ran in Intellij 15 with junit runner, ClasspathTest fails, because both log4j jars are present in the classpath.
When ran with gradle test, ClasspathTest succeeds, as gradle takes only the more recent jar.
The problem also occurs on Eclipse Mars (4.5.1) with Buildship 1.0.5.