// replace the existing helper with our parametrized version
RepositoryHelperPool helperPool = RepositoryHelperPoolImpl.getInstance();
// drain helpers
previous.addAll(Arrays.asList(helperPool.borrowHelpers()));
// replace with our own stub
helperPool.returnHelper(getRepositoryHelper());
}
private RepositoryHelper getRepositoryHelper() throws Exception {
RepositoryHelper helper = HELPERS.get(stubClass);
if (helper == null) {