Fix StackOverflowException in TableOperationSpanBuilder

Author: ndimiduk

hbase-client/src/main/java/org/apache/hadoop/hbase/client/trace/TableOperationSpanBuilder.java

@@ -132,7 +132,11 @@ private static Set<Operation> unpackRowOperations(final Row row) {
     }
     if (row instanceof RowMutations) {
       final RowMutations mutations = (RowMutations) row;
-      ops.addAll(unpackRowOperations(mutations));
+      final List<Operation> operations = mutations.getMutations()
+        .stream()
+        .map(TableOperationSpanBuilder::valueFrom)
+        .collect(Collectors.toList());
+      ops.addAll(operations);
     }
     return ops;
   }