Error using frameworks compiled with Java 8 to test pure java projects

[jbrunton]

Hi,

I have an Android project with a pure java (i.e. not Android) project dependency. I'm using AssertJ, version 3 of which is compiled using Java 8, for unit tests. I have all the relevant JAVA*_HOME variables set, and gradle is running using Java 8.

What I observe:

• I can run the unit tests for the Android project just fine from both Android Studio and the command line.
• The unit tests for the library project run fine from Android Studio.
• The unit tests for the library project fail when I run them from the command line with java.lang.UnsupportedClassVersionError: org/assertj/core/api/Assertions : Unsupported major.minor version 52.0.

I have an example project here. For me, running ./gradlew lib:test will induce the failure.

Can you provide any advice? I've already taken all the steps suggested in other issues which mention this error (e.g. #133).

Great work on this project btw.

[Arnesen]

I have this same issue. Did you figure anything out?

[jbrunton]

@Arnesen Unfortunately not, although I haven't had a chance to look at this for a while.

[vanniktech]

Unsupported major.minor version 52.0 usually indicates that whatever you're trying to run there needs Java 8 and you're not running it with Java 8.

[hmvien]

I just ran into this exact issue.