639 return (void*)_non_oop_bits;
640 }
641
642 jint universe_init() {
643 assert(!Universe::_fully_initialized, "called after initialize_vtables");
644 guarantee(1 << LogHeapWordSize == sizeof(HeapWord),
645 "LogHeapWordSize is incorrect.");
646 guarantee(sizeof(oop) >= sizeof(HeapWord), "HeapWord larger than oop?");
647 guarantee(sizeof(oop) % sizeof(HeapWord) == 0,
648 "oop size is not not a multiple of HeapWord size");
649 TraceTime timer("Genesis", TraceStartupTime);
650 JavaClasses::compute_hard_coded_offsets();
651
652 jint status = Universe::initialize_heap();
653 if (status != JNI_OK) {
654 return status;
655 }
656
657 Metaspace::global_initialize();
658
659 // Create memory for metadata. Must be after initializing heap for
660 // DumpSharedSpaces.
661 ClassLoaderData::init_null_class_loader_data();
662
663 // We have a heap so create the Method* caches before
664 // Metaspace::initialize_shared_spaces() tries to populate them.
665 Universe::_finalizer_register_cache = new LatestMethodCache();
666 Universe::_loader_addClass_cache = new LatestMethodCache();
667 Universe::_pd_implies_cache = new LatestMethodCache();
668 Universe::_throw_illegal_access_error_cache = new LatestMethodCache();
669
670 if (UseSharedSpaces) {
671 // Read the data structures supporting the shared spaces (shared
672 // system dictionary, symbol table, etc.). After that, access to
673 // the file (other than the mapped regions) is no longer needed, and
674 // the file is closed. Closing the file does not affect the
675 // currently mapped regions.
676 MetaspaceShared::initialize_shared_spaces();
677 StringTable::create_table();
678 } else {
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639 return (void*)_non_oop_bits;
640 }
641
642 jint universe_init() {
643 assert(!Universe::_fully_initialized, "called after initialize_vtables");
644 guarantee(1 << LogHeapWordSize == sizeof(HeapWord),
645 "LogHeapWordSize is incorrect.");
646 guarantee(sizeof(oop) >= sizeof(HeapWord), "HeapWord larger than oop?");
647 guarantee(sizeof(oop) % sizeof(HeapWord) == 0,
648 "oop size is not not a multiple of HeapWord size");
649 TraceTime timer("Genesis", TraceStartupTime);
650 JavaClasses::compute_hard_coded_offsets();
651
652 jint status = Universe::initialize_heap();
653 if (status != JNI_OK) {
654 return status;
655 }
656
657 Metaspace::global_initialize();
658
659 // Checks 'AfterMemoryInit' constraints.
660 if (!CommandLineFlags::check_constraints_of_after_memory_init()) {
661 return JNI_EINVAL;
662 }
663
664 // Create memory for metadata. Must be after initializing heap for
665 // DumpSharedSpaces.
666 ClassLoaderData::init_null_class_loader_data();
667
668 // We have a heap so create the Method* caches before
669 // Metaspace::initialize_shared_spaces() tries to populate them.
670 Universe::_finalizer_register_cache = new LatestMethodCache();
671 Universe::_loader_addClass_cache = new LatestMethodCache();
672 Universe::_pd_implies_cache = new LatestMethodCache();
673 Universe::_throw_illegal_access_error_cache = new LatestMethodCache();
674
675 if (UseSharedSpaces) {
676 // Read the data structures supporting the shared spaces (shared
677 // system dictionary, symbol table, etc.). After that, access to
678 // the file (other than the mapped regions) is no longer needed, and
679 // the file is closed. Closing the file does not affect the
680 // currently mapped regions.
681 MetaspaceShared::initialize_shared_spaces();
682 StringTable::create_table();
683 } else {
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