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6653858: dynamic languages need to be able to load anonymous classes

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Low-level privileged sun.misc.Unsafe.defineAnonymousClass

Reviewed-by: kvn
This commit is contained in:
John R Rose 2008-11-12 22:33:26 -08:00
parent 015a08b3e8
commit 849e0ffb04
19 changed files with 607 additions and 37 deletions
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28
hotspot/src/share/vm/classfile/systemDictionary.cpp
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@ -937,6 +937,8 @@ klassOop SystemDictionary::parse_stream(symbolHandle class_name,
Handle class_loader,
Handle protection_domain,
ClassFileStream* st,
KlassHandle host_klass,
GrowableArray<Handle>* cp_patches,
TRAPS) {
symbolHandle parsed_name;
@ -953,10 +955,10 @@ klassOop SystemDictionary::parse_stream(symbolHandle class_name,
instanceKlassHandle k = ClassFileParser(st).parseClassFile(class_name,
class_loader,
protection_domain,
cp_patches,
parsed_name,
THREAD);
// We don't redefine the class, so we just need to clean up whether there
// was an error or not (don't want to modify any system dictionary
// data structures).
@ -973,6 +975,30 @@ klassOop SystemDictionary::parse_stream(symbolHandle class_name,
}
}
if (host_klass.not_null() && k.not_null()) {
assert(AnonymousClasses, "");
// If it's anonymous, initialize it now, since nobody else will.
k->set_host_klass(host_klass());
{
MutexLocker mu_r(Compile_lock, THREAD);
// Add to class hierarchy, initialize vtables, and do possible
// deoptimizations.
add_to_hierarchy(k, CHECK_NULL); // No exception, but can block
// But, do not add to system dictionary.
}
k->eager_initialize(THREAD);
// notify jvmti
if (JvmtiExport::should_post_class_load()) {
assert(THREAD->is_Java_thread(), "thread->is_Java_thread()");
JvmtiExport::post_class_load((JavaThread *) THREAD, k());
}
}
return k();
}