[CBAS] Async Result Delivery : NPE when not passing any parameter to the Status endpoint

Analytics Build : 509

NPE when not passing any parameter to the Status endpoint.

Mihirs-MBP-2:testrunner mihirkamdar$ curl -v http://10.111.151.102:8095/analytics/status

• Trying 10.111.151.102...
• Connected to 10.111.151.102 (10.111.151.102) port 8095 (#0)
  > GET /analytics/status HTTP/1.1
  > Host: 10.111.151.102:8095
  > User-Agent: curl/7.43.0
  > Accept: /
  >
  < HTTP/1.1 200 OK
  < transfer-encoding: chunked
  < connection: keep-alive
  < content-type: text/html; charset=utf-8
  < content-length: 828
  <
  null
  java.lang.NullPointerException
  at com.fasterxml.jackson.core.JsonFactory.createParser(JsonFactory.java:879)
  at com.fasterxml.jackson.databind.ObjectMapper.readTree(ObjectMapper.java:2381)
  at org.apache.asterix.api.http.server.QueryStatusApiServlet.handle(QueryStatusApiServlet.java:85)
  at org.apache.hyracks.http.server.HttpRequestHandler.handle(HttpRequestHandler.java:70)
  at org.apache.hyracks.http.server.HttpRequestHandler.call(HttpRequestHandler.java:55)
  at org.apache.hyracks.http.server.HttpRequestHandler.call(HttpRequestHandler.java:36)
  at java.util.concurrent.FutureTask.run(FutureTask.java:266)
  at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
  at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
  at java.lang.Thread.run(Thread.java:745)
• Connection #0 to host 10.111.151.102 left intact

This case is handled for the /analytics/result endpoint