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8140485: Class load and creation cleanup

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Reviewed-by: hseigel, coleenp, sspitsyn
This commit is contained in:
Markus Grönlund 2015-12-08 20:04:03 +01:00
parent 24c8c40bb8
commit 2ad9d3192f
59 changed files with 4174 additions and 3258 deletions
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49
hotspot/src/share/vm/oops/klass.cpp
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@ -136,7 +136,7 @@ Klass* Klass::find_field(Symbol* name, Symbol* sig, fieldDescriptor* fd) const {
return NULL;
}
Method* Klass::uncached_lookup_method(Symbol* name, Symbol* signature, OverpassLookupMode overpass_mode) const {
Method* Klass::uncached_lookup_method(const Symbol* name, const Symbol* signature, OverpassLookupMode overpass_mode) const {
#ifdef ASSERT
tty->print_cr("Error: uncached_lookup_method called on a klass oop."
" Likely error: reflection method does not correctly"
@ -151,45 +151,18 @@ void* Klass::operator new(size_t size, ClassLoaderData* loader_data, size_t word
MetaspaceObj::ClassType, THREAD);
}
Klass::Klass() {
Klass* k = this;
// "Normal" instantiation is preceeded by a MetaspaceObj allocation
// which zeros out memory - calloc equivalent.
// The constructor is also used from init_self_patching_vtbl_list,
// which doesn't zero out the memory before calling the constructor.
// Need to set the _java_mirror field explicitly to not hit an assert that the field
// should be NULL before setting it.
Klass::Klass() : _prototype_header(markOopDesc::prototype()),
_shared_class_path_index(-1),
_java_mirror(NULL) {
// Preinitialize supertype information.
// A later call to initialize_supers() may update these settings:
set_super(NULL);
for (juint i = 0; i < Klass::primary_super_limit(); i++) {
_primary_supers[i] = NULL;
}
set_secondary_supers(NULL);
set_secondary_super_cache(NULL);
_primary_supers[0] = k;
_primary_supers[0] = this;
set_super_check_offset(in_bytes(primary_supers_offset()));
// The constructor is used from init_self_patching_vtbl_list,
// which doesn't zero out the memory before calling the constructor.
// Need to set the field explicitly to not hit an assert that the field
// should be NULL before setting it.
_java_mirror = NULL;
set_modifier_flags(0);
set_layout_helper(Klass::_lh_neutral_value);
set_name(NULL);
AccessFlags af;
af.set_flags(0);
set_access_flags(af);
set_subklass(NULL);
set_next_sibling(NULL);
set_next_link(NULL);
TRACE_INIT_ID(this);
set_prototype_header(markOopDesc::prototype());
set_biased_lock_revocation_count(0);
set_last_biased_lock_bulk_revocation_time(0);
// The klass doesn't have any references at this point.
clear_modified_oops();
clear_accumulated_modified_oops();
_shared_class_path_index = -1;
}
jint Klass::array_layout_helper(BasicType etype) {