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8004823: Add VM support for type annotation reflection

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Reviewed-by: dholmes, coleenp
This commit is contained in:
Joel Borggren-Franck 2012-12-20 10:22:19 +01:00 • committed by Stefan Karlsson
parent 9c761152db
commit 6ed6cb5375
22 changed files with 302 additions and 11 deletions
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15
hotspot/src/share/vm/prims/jvmtiRedefineClasses.cpp
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@ -3338,7 +3338,20 @@ void VM_RedefineClasses::redefine_single_class(jclass the_jclass,
the_class->set_access_flags(flags);
}
// Replace annotation fields value
// Since there is currently no rewriting of type annotations indexes
// into the CP, we null out type annotations on scratch_class before
// we swap annotations with the_class rather than facing the
// possibility of shipping annotations with broken indexes to
// Java-land.
Annotations* new_annotations = scratch_class->annotations();
if (new_annotations != NULL) {
Annotations* new_type_annotations = new_annotations->type_annotations();
if (new_type_annotations != NULL) {
MetadataFactory::free_metadata(scratch_class->class_loader_data(), new_type_annotations);
new_annotations->set_type_annotations(NULL);
}
}
// Swap annotation fields values
Annotations* old_annotations = the_class->annotations();
the_class->set_annotations(scratch_class->annotations());
scratch_class->set_annotations(old_annotations);