Shadowed classes are duplicated

[TobiX]

Looking at java-snapshot-testing-junit5-4.0.8.jar for example, it seems that all shadowJar classes (https://github.com/origin-energy/java-snapshot-testing/blob/master/build.gradle#L25-L26) are duplicated:

On the one hand this probably blows up the size of the JAR, on the other hand this confuses some tools (for example https://www.mojohaus.org/extra-enforcer-rules/banDuplicateClasses.html).

What is the reason of shadowing AssertJ and OpenTest4J instead of providing it as a "normal" dependency?

The duplication is probably due to the "duplicate" shadowing in both core and junit5... But I'm not very familiar with Gradle, so I'm only guessing...

[jackmatt2]

The reason for shadowing was to make the inclusion of this library simpler. It was also used to ensure version clashes don't occur between project and test libraries.

Agree though that there should not be duplicates - happy to accept a Pr fixing it. It's probably just gradle config.