HADOOP-12440. TestRPC#testRPCServerShutdown did not produce the desired thread states before shutting down. (Xiao Chen via mingma)

(cherry picked from commit 5c3b663bf95551d1cf36a2a39849e0676893fa1d)

hadoop-common-project/hadoop-common/CHANGES.txt

@@ -590,6 +590,9 @@ Release 2.8.0 - UNRELEASED
     HADOOP-11918. Listing an empty s3a root directory throws FileNotFound.
     (Lei (Eddy) Xu via cnauroth)
 
+    HADOOP-12440. TestRPC#testRPCServerShutdown did not produce the desired
+    thread states before shutting down. (Xiao Chen via mingma)
+
   OPTIMIZATIONS
 
     HADOOP-12051. ProtobufRpcEngine.invoke() should use Exception.toString()

hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/ipc/TestRPC.java

@@ -1056,8 +1056,8 @@ public class TestRPC {
             }));
       }
       while (server.getCallQueueLen() != 1
-          && countThreads(CallQueueManager.class.getName()) != 1
-          && countThreads(TestProtocol.class.getName()) != 1) {
+          || countThreads(CallQueueManager.class.getName()) != 1
+          || countThreads(TestImpl.class.getName()) != 1) {
         Thread.sleep(100);
       }
     } finally {