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8160399: is_oop_or_null involves undefined behavior

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8164984: Improper use of is_oop in production code

Replace oop->is_oop*() with oopDesc::is_oop*(oop) so this pointer can be verified

Reviewed-by: iklam, kvn, dholmes
This commit is contained in:
Coleen Phillimore 2017-08-23 14:52:55 -04:00
parent 61a9f88ca7
commit 3d6d1ec64b
61 changed files with 195 additions and 209 deletions
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hotspot/src/share/vm/code/debugInfo.cpp
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@ -48,7 +48,7 @@ void DebugInfoWriteStream::write_metadata(Metadata* h) {
oop DebugInfoReadStream::read_oop() {
oop o = code()->oop_at(read_int());
assert(o->is_oop_or_null(), "oop only");
assert(oopDesc::is_oop_or_null(o), "oop only");
return o;
}