Allow @Parameters(source = SomeClass.class) to have non-static provide* methods

[kuporific]

My use-case is to have an interface that defines methods that provide test parameters so that I can better enforce parameter sets that need to run against multiple tests.

Example:

public class MyClassTest {
  public interface MyParameters {
    Object[] provideParamSet1();
    Object[] provideParamSet2();
  }

  @Test
  @Parameters(source = MyTest1Params.class)
  public test1(String given, String expected) {
    ...
  }

  public static class MyTest1Params implements MyParameters {
    @Override public Object[] provideParamSet1() { ... }
    @Override public Object[] provideParamSet2() { ... }
  }


  @Test
  @Parameters(source = MyTest2Params.class)
  public test2(String given, String expected) {
    ...
  }

  public static class MyTest2Params implements MyParameters {
    @Override public Object[] provideParamSet1() { ... }
    @Override public Object[] provideParamSet2() { ... }
  }
}

(This would technically break backwards compatibility as I imagine the implementation of this feature would require a default constructor for the Parameters.source classes.)