private ErrorProneTestCompiler compiler;
private DiagnosticTestHelper diagnosticHelper;
@Before
public void setUp() {
diagnosticHelper = new DiagnosticTestHelper();
compiler = new ErrorProneTestCompiler.Builder()
.listenToDiagnostics(diagnosticHelper.collector)
.report(new ErrorProneScanner(new MyChecker(), new MyChecker2()))
.build();
}