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6817525: turn on method handle functionality by default for JSR 292

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After appropriate testing, we need to turn on EnableMethodHandles and EnableInvokeDynamic by default.

Reviewed-by: never, kvn, jrose, phh
This commit is contained in:
Christian Thalinger 2011-03-31 02:31:57 -07:00
parent 79c814c616
commit c9e2dcda4b
29 changed files with 90 additions and 102 deletions
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32
hotspot/src/share/vm/classfile/systemDictionary.cpp
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@ -1017,7 +1017,7 @@ klassOop SystemDictionary::parse_stream(Symbol* class_name,
}
if (host_klass.not_null() && k.not_null()) {
assert(AnonymousClasses, "");
assert(EnableInvokeDynamic, "");
// If it's anonymous, initialize it now, since nobody else will.
k->set_host_klass(host_klass());
@ -1940,7 +1940,7 @@ bool SystemDictionary::initialize_wk_klass(WKID id, int init_opt, TRAPS) {
}
Symbol* backup_symbol = NULL; // symbol to try if the current symbol fails
if (init_opt == SystemDictionary::Pre_JSR292) {
if (!EnableMethodHandles) try_load = false; // do not bother to load such classes
if (!EnableInvokeDynamic) try_load = false; // do not bother to load such classes
if (AllowTransitionalJSR292) {
backup_symbol = find_backup_class_name(symbol);
if (try_load && PreferTransitionalJSR292) {
@ -2038,25 +2038,15 @@ void SystemDictionary::initialize_preloaded_classes(TRAPS) {
instanceKlass::cast(WK_KLASS(FinalReference_klass))->set_reference_type(REF_FINAL);
instanceKlass::cast(WK_KLASS(PhantomReference_klass))->set_reference_type(REF_PHANTOM);
WKID meth_group_start = WK_KLASS_ENUM_NAME(MethodHandle_klass);
WKID meth_group_end = WK_KLASS_ENUM_NAME(WrongMethodTypeException_klass);
initialize_wk_klasses_until(meth_group_start, scan, CHECK);
if (EnableMethodHandles) {
initialize_wk_klasses_through(meth_group_end, scan, CHECK);
}
if (_well_known_klasses[meth_group_start] == NULL) {
// Skip the rest of the method handle classes, if MethodHandle is not loaded.
scan = WKID(meth_group_end+1);
}
WKID indy_group_start = WK_KLASS_ENUM_NAME(Linkage_klass);
WKID indy_group_end = WK_KLASS_ENUM_NAME(CallSite_klass);
initialize_wk_klasses_until(indy_group_start, scan, CHECK);
// JSR 292 classes
WKID jsr292_group_start = WK_KLASS_ENUM_NAME(MethodHandle_klass);
WKID jsr292_group_end = WK_KLASS_ENUM_NAME(CallSite_klass);
initialize_wk_klasses_until(jsr292_group_start, scan, CHECK);
if (EnableInvokeDynamic) {
initialize_wk_klasses_through(indy_group_end, scan, CHECK);
}
if (_well_known_klasses[indy_group_start] == NULL) {
// Skip the rest of the dynamic typing classes, if Linkage is not loaded.
scan = WKID(indy_group_end+1);
initialize_wk_klasses_through(jsr292_group_end, scan, CHECK);
} else {
// Skip the JSR 292 classes, if not enabled.
scan = WKID(jsr292_group_end + 1);
}
initialize_wk_klasses_until(WKID_LIMIT, scan, CHECK);
@ -2407,7 +2397,7 @@ methodOop SystemDictionary::find_method_handle_invoke(Symbol* name,
Symbol* signature,
KlassHandle accessing_klass,
TRAPS) {
if (!EnableMethodHandles) return NULL;
if (!EnableInvokeDynamic) return NULL;
vmSymbols::SID name_id = vmSymbols::find_sid(name);
assert(name_id != vmSymbols::NO_SID, "must be a known name");
unsigned int hash = invoke_method_table()->compute_hash(signature, name_id);