jarTask.filesMatching(PLUGIN_DESCRIPTOR_PATTERN, pluginDescriptorCollector);
            jarTask.filesMatching(CLASSES_PATTERN, classManifestCollector);
            jarTask.appendParallelSafeAction(pluginValidationAction);
        });
    }

    private GradlePluginDevelopmentExtension createExtension(Project project) {

            throw new InvalidUserDataException("Action must not be null!");
        }
        getTaskActions().add(0, wrap(action));
    }

    @Override
    public void appendParallelSafeAction(final Action<? super Task> action) {
        if (action == null) {
            throw new InvalidUserDataException("Action must not be null!");
        }
        getTaskActions().add(wrap(action));
    }