httpclient didn't release when http validateResponse false.

Author: guange2015

.gitignore

@@ -5,3 +5,4 @@ target
 .project
 .settings
 test-output
+.DS_Store

jenkins-client/src/main/java/com/offbytwo/jenkins/client/JenkinsHttpClient.java

@@ -339,8 +339,8 @@ public String post_xml(String path, String xml_data, boolean crumbFlag) throws I
         }
         HttpResponse response = client.execute(request, localContext);
         getJenkinsVersionFromHeader(response);
-        httpResponseValidator.validateResponse(response);
         try {
+            httpResponseValidator.validateResponse(response);
             return IOUtils.toString(response.getEntity().getContent());
         } finally {
             EntityUtils.consume(response.getEntity());
@@ -386,8 +386,8 @@ public String post_text(String path, String textData, ContentType contentType, b
         }
         HttpResponse response = client.execute(request, localContext);
         getJenkinsVersionFromHeader(response);
-        httpResponseValidator.validateResponse(response);
         try {
+            httpResponseValidator.validateResponse(response);
             return IOUtils.toString(response.getEntity().getContent());
         } finally {
             EntityUtils.consume(response.getEntity());