599 init_assuming_no_promotion_failure();
600
601 GCTraceTime(Trace, gc, phases) tm("DefNew", NULL, gch->gc_cause());
602
603 gch->trace_heap_before_gc(&gc_tracer);
604
605 // These can be shared for all code paths
606 IsAliveClosure is_alive(this);
607 ScanWeakRefClosure scan_weak_ref(this);
608
609 age_table()->clear();
610 to()->clear(SpaceDecorator::Mangle);
611 // The preserved marks should be empty at the start of the GC.
612 _preserved_marks_set.init(1);
613
614 gch->rem_set()->prepare_for_younger_refs_iterate(false);
615
616 assert(gch->no_allocs_since_save_marks(),
617 "save marks have not been newly set.");
618
619 // Not very pretty.
620 CollectorPolicy* cp = gch->collector_policy();
621
622 FastScanClosure fsc_with_no_gc_barrier(this, false);
623 FastScanClosure fsc_with_gc_barrier(this, true);
624
625 CLDScanClosure cld_scan_closure(&fsc_with_no_gc_barrier,
626 gch->rem_set()->cld_rem_set()->accumulate_modified_oops());
627
628 set_promo_failure_scan_stack_closure(&fsc_with_no_gc_barrier);
629 FastEvacuateFollowersClosure evacuate_followers(gch,
630 &fsc_with_no_gc_barrier,
631 &fsc_with_gc_barrier);
632
633 assert(gch->no_allocs_since_save_marks(),
634 "save marks have not been newly set.");
635
636 {
637 // DefNew needs to run with n_threads == 0, to make sure the serial
638 // version of the card table scanning code is used.
639 // See: CardTableModRefBSForCTRS::non_clean_card_iterate_possibly_parallel.
640 StrongRootsScope srs(0);
641
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599 init_assuming_no_promotion_failure();
600
601 GCTraceTime(Trace, gc, phases) tm("DefNew", NULL, gch->gc_cause());
602
603 gch->trace_heap_before_gc(&gc_tracer);
604
605 // These can be shared for all code paths
606 IsAliveClosure is_alive(this);
607 ScanWeakRefClosure scan_weak_ref(this);
608
609 age_table()->clear();
610 to()->clear(SpaceDecorator::Mangle);
611 // The preserved marks should be empty at the start of the GC.
612 _preserved_marks_set.init(1);
613
614 gch->rem_set()->prepare_for_younger_refs_iterate(false);
615
616 assert(gch->no_allocs_since_save_marks(),
617 "save marks have not been newly set.");
618
619 FastScanClosure fsc_with_no_gc_barrier(this, false);
620 FastScanClosure fsc_with_gc_barrier(this, true);
621
622 CLDScanClosure cld_scan_closure(&fsc_with_no_gc_barrier,
623 gch->rem_set()->cld_rem_set()->accumulate_modified_oops());
624
625 set_promo_failure_scan_stack_closure(&fsc_with_no_gc_barrier);
626 FastEvacuateFollowersClosure evacuate_followers(gch,
627 &fsc_with_no_gc_barrier,
628 &fsc_with_gc_barrier);
629
630 assert(gch->no_allocs_since_save_marks(),
631 "save marks have not been newly set.");
632
633 {
634 // DefNew needs to run with n_threads == 0, to make sure the serial
635 // version of the card table scanning code is used.
636 // See: CardTableModRefBSForCTRS::non_clean_card_iterate_possibly_parallel.
637 StrongRootsScope srs(0);
638
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