Don't send reply for oneway calls.

Bug: 35044790
Test: hidl_test, hidl_test_java
Change-Id: Id2d9f97245338153d479f9efea921cdd2166eb5f
diff --git a/generateJava.cpp b/generateJava.cpp
index 1241dcd..317f88e 100644
--- a/generateJava.cpp
+++ b/generateJava.cpp
@@ -582,7 +582,7 @@
 
         out << ");\n";
 
-        if (!needsCallback) {
+        if (!needsCallback && !method->isOneway()) {
             out << "_hidl_reply.writeStatus(android.os.HwParcel.STATUS_SUCCESS);\n";
 
             if (returnsValue) {