8001307: Modify ACC_SUPER behavior
Summary: Disallow non-virtual calls even when ACC_SUPER is absent.
Reviewed-by: kvn, acorn
--- a/hotspot/src/share/vm/interpreter/linkResolver.cpp Fri Oct 26 09:27:25 2012 -0700
+++ b/hotspot/src/share/vm/interpreter/linkResolver.cpp Mon Nov 05 17:03:33 2012 -0500
@@ -786,7 +786,7 @@
if (check_access &&
// a) check if ACC_SUPER flag is set for the current class
- current_klass->is_super() &&
+ (current_klass->is_super() || !AllowNonVirtualCalls) &&
// b) check if the method class is a superclass of the current class (superclass relation is not reflexive!)
current_klass->is_subtype_of(method_klass()) && current_klass() != method_klass() &&
// c) check if the method is not <init>
--- a/hotspot/src/share/vm/runtime/globals.hpp Fri Oct 26 09:27:25 2012 -0700
+++ b/hotspot/src/share/vm/runtime/globals.hpp Mon Nov 05 17:03:33 2012 -0500
@@ -3602,7 +3602,10 @@
"Enable internal testing APIs") \
\
product(bool, PrintGCCause, true, \
- "Include GC cause in GC logging")
+ "Include GC cause in GC logging") \
+ \
+ product(bool, AllowNonVirtualCalls, false, \
+ "Obey the ACC_SUPER flag and allow invokenonvirtual calls")
/*
* Macros for factoring of globals