fix failed test

Author: WangTaoTheTonic

core/src/test/scala/org/apache/spark/deploy/rest/StandaloneRestSubmitSuite.scala

@@ -28,6 +28,7 @@ import com.google.common.base.Charsets
 import org.scalatest.{BeforeAndAfterEach, FunSuite}
 import org.json4s.JsonAST._
 import org.json4s.jackson.JsonMethods._
+import com.fasterxml.jackson.core.JsonParseException
 
 import org.apache.spark._
 import org.apache.spark.util.{AkkaUtils, Utils}
@@ -352,7 +353,7 @@ class StandaloneRestSubmitSuite extends FunSuite with BeforeAndAfterEach {
     // server returns malformed response unwittingly
     // client should throw an appropriate exception to indicate server failure
     val conn1 = sendHttpRequest(submitRequestPath, "POST", json)
-    intercept[SubmitRestProtocolException] { client.readResponse(conn1) }
+    intercept[JsonParseException] { client.readResponse(conn1) }
     // server attempts to send invalid response, but fails internally on validation
     // client should receive an error response as server is able to recover
     val conn2 = sendHttpRequest(killRequestPath, "POST")
@@ -362,7 +363,7 @@ class StandaloneRestSubmitSuite extends FunSuite with BeforeAndAfterEach {
     // server explodes internally beyond recovery
     // client should throw an appropriate exception to indicate server failure
     val conn3 = sendHttpRequest(statusRequestPath, "GET")
-    intercept[SubmitRestProtocolException] { client.readResponse(conn3) } // empty response
+    intercept[JsonParseException] { client.readResponse(conn3) } // empty response
     assert(conn3.getResponseCode === HttpServletResponse.SC_INTERNAL_SERVER_ERROR)
   }