changeset 1337:3d531bbe5917

Merge
author acorn
date Thu, 28 Jan 2010 13:59:18 -0500
parents 0c3f888b7636 ae4032fb0a5b
children f5dd08ad65df
files
diffstat 2 files changed, 5 insertions(+), 1 deletions(-) [+]
line wrap: on
line diff
--- a/src/share/vm/opto/cfgnode.cpp	Tue Jan 19 16:03:09 2010 -0500
+++ b/src/share/vm/opto/cfgnode.cpp	Thu Jan 28 13:59:18 2010 -0500
@@ -956,6 +956,7 @@
     }
     if( jtkp && ttkp ) {
       if( jtkp->is_loaded() &&  jtkp->klass()->is_interface() &&
+          !jtkp->klass_is_exact() && // Keep exact interface klass (6894807)
           ttkp->is_loaded() && !ttkp->klass()->is_interface() ) {
         assert(ft == ttkp->cast_to_ptr_type(jtkp->ptr()) ||
                ft->isa_narrowoop() && ft->make_ptr() == ttkp->cast_to_ptr_type(jtkp->ptr()), "");
--- a/src/share/vm/opto/type.cpp	Tue Jan 19 16:03:09 2010 -0500
+++ b/src/share/vm/opto/type.cpp	Thu Jan 28 13:59:18 2010 -0500
@@ -2545,12 +2545,15 @@
       ftip->is_loaded() &&  ftip->klass()->is_interface() &&
       ktip->is_loaded() && !ktip->klass()->is_interface()) {
     // Happens in a CTW of rt.jar, 320-341, no extra flags
+    assert(!ftip->klass_is_exact(), "interface could not be exact");
     return ktip->cast_to_ptr_type(ftip->ptr());
   }
+  // Interface klass type could be exact in opposite to interface type,
+  // return it here instead of incorrect Constant ptr J/L/Object (6894807).
   if (ftkp != NULL && ktkp != NULL &&
       ftkp->is_loaded() &&  ftkp->klass()->is_interface() &&
+      !ftkp->klass_is_exact() && // Keep exact interface klass
       ktkp->is_loaded() && !ktkp->klass()->is_interface()) {
-    // Happens in a CTW of rt.jar, 320-341, no extra flags
     return ktkp->cast_to_ptr_type(ftkp->ptr());
   }