HBASE-27097 SimpleRpcServer is broken (#4521)

Apply https://issues.apache.org/jira/secure/attachment/13044874/MultiByteBuff.patch
from Lijin Bin on JIRA.

Co-authored-by: Lijin Bin <binlijin@apache.org>
Signed-off-by: Lijin Bin <binlijin@apache.org>
Signed-off-by: Viraj Jasani <vjasani@apache.org>

hbase-common/src/main/java/org/apache/hadoop/hbase/nio/MultiByteBuff.java

@@ -1148,6 +1148,9 @@ public class MultiByteBuff extends ByteBuff {
         offset += len;
       }
       if (buffer.hasRemaining()) {
+        // reset
+        curItem = buffer;
+        curItemIndex = (curItemIndex - 1);
         break;
       }
     }