--- old/src/share/vm/prims/jni.cpp	2019-04-11 21:28:18.871984668 +0000
+++ new/src/share/vm/prims/jni.cpp	2019-04-11 21:28:18.771984032 +0000
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1997, 2018, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2017, Oracle and/or its affiliates. All rights reserved.
  * Copyright (c) 2012 Red Hat, Inc.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
@@ -709,6 +709,7 @@
 
   THROW_OOP_(JNIHandles::resolve(obj), JNI_OK);
   ShouldNotReachHere();
+  return 0; // Mute compiler.
 JNI_END
 
 #ifndef USDT2
@@ -735,6 +736,7 @@
   Handle protection_domain (THREAD, k->protection_domain());
   THROW_MSG_LOADER_(name, (char *)message, class_loader, protection_domain, JNI_OK);
   ShouldNotReachHere();
+  return 0; // Mute compiler.
 JNI_END
 
 
@@ -1140,8 +1142,7 @@
   inline void get_long()   { _arguments->push_long(va_arg(_ap, jlong)); }
   inline void get_float()  { _arguments->push_float((jfloat)va_arg(_ap, jdouble)); } // float is coerced to double w/ va_arg
   inline void get_double() { _arguments->push_double(va_arg(_ap, jdouble)); }
-  inline void get_object() { jobject l = va_arg(_ap, jobject);
-                             _arguments->push_oop(Handle((oop *)l, false)); }
+  inline void get_object() { _arguments->push_jobject(va_arg(_ap, jobject)); }
 
   inline void set_ap(va_list rap) {
 #ifdef va_copy
@@ -1235,7 +1236,7 @@
   inline void get_long()   { _arguments->push_long((_ap++)->j);  }
   inline void get_float()  { _arguments->push_float((_ap++)->f); }
   inline void get_double() { _arguments->push_double((_ap++)->d);}
-  inline void get_object() { _arguments->push_oop(Handle((oop *)(_ap++)->l, false)); }
+  inline void get_object() { _arguments->push_jobject((_ap++)->l); }
 
   inline void set_ap(const jvalue *rap) { _ap = rap; }