public InputStream getFile(URI path) throws IOException {
HttpGet getMethod = new HttpGet(path);
HttpResponse response = client.execute(getMethod, localContext);
jenkinsVersion = ResponseUtils.getJenkinsVersion(response);
httpResponseValidator.validateResponse(response);
return new RequestReleasingInputStream(response.getEntity().getContent(), getMethod);
}

when invoke getFile method and occur exception at validateResponse(),

connetions cannot be released