Peter Wippermann

Refactoring Suite, Parameterized and class runners to allow reuse in custom Runners

16

As discussed in #1338 I refactored some of runners to be able to reuse their functionality. This mainly included the conversion of private instance methods to public (static) class methods....

Code base doesn't comply with JUnit's own coding style

7

I'd like to suggest to reformat all code under `org.junit.*` once to meet the defined [formatting guidelines](https://github.com/junit-team/junit4/blob/master/CODING_STYLE.txt). At the moment not all the files are formatted accordingly to that standard....

Allow functionality of Suite, Parameterized and BlockJUnit4ClassRunnerWithParameters to be reused in custom Runners

12

As of version 4.12 there is much encapsulated functionality in `Suite`, `Parameterized` and `BlockJUnit4ClassRunnerWithParameters`, which is hidden in private methods and not available for custom implementations of `Runner` for reuse....