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8194989: 2 Null pointer dereference defect groups caused by Dependencies::DepValue::as_klass()

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Reviewed-by: kvn
This commit is contained in:
Dean Long 2018-01-18 10:05:32 -08:00
parent 4f496a5786
commit 0e3410b141
1 changed files with 13 additions and 3 deletions

16
src/hotspot/share/code/dependencies.hpp

@ -1,5 +1,5 @@
/*
* Copyright (c) 2005, 2017, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2005, 2018, Oracle and/or its affiliates. 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
@ -241,8 +241,18 @@ class Dependencies: public ResourceObj {
bool is_object() const { assert(is_valid(), "oops"); return _id < 0; }
Metadata* as_metadata(OopRecorder* rec) const { assert(is_metadata(), "oops"); return rec->metadata_at(index()); }
Klass* as_klass(OopRecorder* rec) const { assert(as_metadata(rec)->is_klass(), "oops"); return (Klass*) as_metadata(rec); }
Method* as_method(OopRecorder* rec) const { assert(as_metadata(rec)->is_method(), "oops"); return (Method*) as_metadata(rec); }
Klass* as_klass(OopRecorder* rec) const {
Metadata* m = as_metadata(rec);
assert(m != NULL, "as_metadata returned NULL");
assert(m->is_klass(), "oops");
return (Klass*) m;
}
Method* as_method(OopRecorder* rec) const {
Metadata* m = as_metadata(rec);
assert(m != NULL, "as_metadata returned NULL");
assert(m->is_method(), "oops");
return (Method*) m;
}
jobject as_object(OopRecorder* rec) const { assert(is_object(), "oops"); return rec->oop_at(index()); }
};
#endif // INCLUDE_JVMCI