THRIFT-1365. java: TupleProtocol#writeBitSet unintentionally writes a variable length byte array

git-svn-id: https://svn.apache.org/repos/asf/thrift/trunk@1176072 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/test/DebugProtoTest.thrift b/test/DebugProtoTest.thrift
index b8b89b7..e2bba40 100644
--- a/test/DebugProtoTest.thrift
+++ b/test/DebugProtoTest.thrift
@@ -351,3 +351,17 @@
   3: i32 field3;
 }
 
+struct TupleProtocolTestStruct {
+  optional i32 field1;
+  optional i32 field2;
+  optional i32 field3;
+  optional i32 field4;
+  optional i32 field5;
+  optional i32 field6;
+  optional i32 field7;
+  optional i32 field8;
+  optional i32 field9;
+  optional i32 field10;
+  optional i32 field11;
+  optional i32 field12;
+}
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