new Gson().toJson(acceptanceJson, AcceptedApiChange, writer)
        }
        return stringWriter.toString()
    }

    String getCurrentVersion() {
        return context.getUserData().get("currentVersion")
    }

    private String relativePathToMainApiChanges() {
        if (null != mainApiChangesJsonFile && null != projectRootDir) {
            return projectRootDir.relativePath(mainApiChangesJsonFile)

            @Override
            String getClassName() { TEST_INTERFACE_NAME }

            @Override
            Map<String, ?> getUserData() {
                [
                    currentVersion: '11.38',
                    (BinaryCompatibilityRepositorySetupRule.REPOSITORY_CONTEXT_KEY): repository
                ]
            }

            @Override
            <T> T getUserData(String key) {