}

        protected abstract List<ClassSource> getClassSources();

        @Override
        public WorkOutput execute(ExecutionRequest executionRequest) {
            File workspace = executionRequest.getWorkspace();
            File srcDir = new File(workspace, OUT_SOURCES);
            File dstDir = new File(workspace, OUT_CLASSES);
            List<ClassSource> sources = getClassSources();

        }

        private Optional<String> className(TestDescriptor descriptor) {
            return descriptor.getSource()
                .filter(ClassSource.class::isInstance)
                .map(ClassSource.class::cast)
                .map(ClassSource::getClassName);
        }
    }

    private static class BackwardsCompatibleLauncherSession implements AutoCloseable {

    private static String className(@Nullable TestIdentifier testClassIdentifier) {
        if (testClassIdentifier != null) {
            Optional<ClassSource> classSource = getClassSource(testClassIdentifier);
            if (classSource.isPresent()) {
                return classSource.get().getClassName();
            }
        }
        return JUnitSupport.UNKNOWN_CLASS;
    }

                }
            }
            return null
        }

    }

    @Canonical
    static class TestClassSource implements ClassSource {

        final String className
        final String classSource

        @Override
        String getPackageName() {
            'org.test'
        }

        @Override
        String getSimpleClassName() {

        boolean javadocContains(String text) {
            javadoc.any { it.contains(text) }
        }
    }

    @Canonical
    static class TestClassSource implements ClassSource {

        final String className
        final String classSource

        @Override
        String getPackageName() {
            'org.test'
        }

        @Override
        String getSimpleClassName() {