RFR (XS) 8222111: exeCallerAccessTest.c fails to build: control reaches end of non-void function

[Aleksey Shipilev]

Bug:
  https://bugs.openjdk.java.net/browse/JDK-8222111

Fix:

diff -r 0d7fb7f07134 
test/jdk/java/lang/reflect/exeCallerAccessTest/exeCallerAccessTest.c
--- a/test/jdk/java/lang/reflect/exeCallerAccessTest/exeCallerAccessTest.c      
Mon Apr 08 06:56:37
2019 +0100
+++ b/test/jdk/java/lang/reflect/exeCallerAccessTest/exeCallerAccessTest.c      
Mon Apr 08 13:53:51
2019 +0200
@@ -94,4 +94,5 @@

     (*jvm)->DestroyJavaVM(jvm);
+    return 0;
 }

Testing: local Linux x86_64 builds (gcc 4.8.5, 6.3.0, 7.3.0), jdk-submit 
(running)

--
Thanks,
-Aleksey