Mercurial > hg > openjdk > hsx17
changeset 1305:3d044c97c298
6894807: No ClassCastException for HashAttributeSet constructors if run with -Xcomp
Summary: Return interface klass type if it is exact.
Reviewed-by: never
author | kvn |
---|---|
date | Tue, 06 Apr 2010 12:38:12 -0700 |
parents | 9ce102c4501a |
children | 2ade0664189b |
files | src/share/vm/opto/cfgnode.cpp src/share/vm/opto/type.cpp |
diffstat | 2 files changed, 7 insertions(+), 2 deletions(-) [+] |
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--- a/src/share/vm/opto/cfgnode.cpp Tue Apr 06 13:58:19 2010 -0700 +++ b/src/share/vm/opto/cfgnode.cpp Tue Apr 06 12:38:12 2010 -0700 @@ -1,5 +1,5 @@ /* - * Copyright 1997-2009 Sun Microsystems, Inc. All Rights Reserved. + * Copyright 1997-2010 Sun Microsystems, Inc. All Rights Reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it @@ -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 Apr 06 13:58:19 2010 -0700 +++ b/src/share/vm/opto/type.cpp Tue Apr 06 12:38:12 2010 -0700 @@ -1,5 +1,5 @@ /* - * Copyright 1997-2009 Sun Microsystems, Inc. All Rights Reserved. + * Copyright 1997-2010 Sun Microsystems, Inc. All Rights Reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it @@ -2545,10 +2545,14 @@ 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());