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src/hotspot/share/gc/parallel/psParallelCompact.cpp

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2122   }
2123 
2124   // This is the point where the entire marking should have completed.
2125   assert(cm->marking_stacks_empty(), "Marking should have completed");
2126 
2127   {
2128     GCTraceTime(Debug, gc, phases) tm("Weak Processing", &_gc_timer);
2129     WeakProcessor::weak_oops_do(is_alive_closure(), &do_nothing_cl);
2130   }
2131 
2132   {
2133     GCTraceTime(Debug, gc, phases) tm_m("Class Unloading", &_gc_timer);
2134 
2135     // Follow system dictionary roots and unload classes.
2136     bool purged_class = SystemDictionary::do_unloading(is_alive_closure(), &_gc_timer);
2137 
2138     // Unload nmethods.
2139     CodeCache::do_unloading(is_alive_closure(), purged_class);
2140 
2141     // Prune dead klasses from subklass/sibling/implementor lists.
2142     Klass::clean_weak_klass_links();
2143   }
2144 
2145   {
2146     GCTraceTime(Debug, gc, phases) t("Scrub String Table", &_gc_timer);
2147     // Delete entries for dead interned strings.
2148     StringTable::unlink(is_alive_closure());
2149   }
2150 
2151   {
2152     GCTraceTime(Debug, gc, phases) t("Scrub Symbol Table", &_gc_timer);
2153     // Clean up unreferenced symbols in symbol table.
2154     SymbolTable::unlink();
2155   }
2156 
2157   _gc_tracer.report_object_count_after_gc(is_alive_closure());
2158 }
2159 
2160 void PSParallelCompact::adjust_roots(ParCompactionManager* cm) {
2161   // Adjust the pointers to reflect the new locations
2162   GCTraceTime(Info, gc, phases) tm("Adjust Roots", &_gc_timer);




2122   }
2123 
2124   // This is the point where the entire marking should have completed.
2125   assert(cm->marking_stacks_empty(), "Marking should have completed");
2126 
2127   {
2128     GCTraceTime(Debug, gc, phases) tm("Weak Processing", &_gc_timer);
2129     WeakProcessor::weak_oops_do(is_alive_closure(), &do_nothing_cl);
2130   }
2131 
2132   {
2133     GCTraceTime(Debug, gc, phases) tm_m("Class Unloading", &_gc_timer);
2134 
2135     // Follow system dictionary roots and unload classes.
2136     bool purged_class = SystemDictionary::do_unloading(is_alive_closure(), &_gc_timer);
2137 
2138     // Unload nmethods.
2139     CodeCache::do_unloading(is_alive_closure(), purged_class);
2140 
2141     // Prune dead klasses from subklass/sibling/implementor lists.
2142     Klass::clean_weak_klass_links(purged_class);
2143   }
2144 
2145   {
2146     GCTraceTime(Debug, gc, phases) t("Scrub String Table", &_gc_timer);
2147     // Delete entries for dead interned strings.
2148     StringTable::unlink(is_alive_closure());
2149   }
2150 
2151   {
2152     GCTraceTime(Debug, gc, phases) t("Scrub Symbol Table", &_gc_timer);
2153     // Clean up unreferenced symbols in symbol table.
2154     SymbolTable::unlink();
2155   }
2156 
2157   _gc_tracer.report_object_count_after_gc(is_alive_closure());
2158 }
2159 
2160 void PSParallelCompact::adjust_roots(ParCompactionManager* cm) {
2161   // Adjust the pointers to reflect the new locations
2162   GCTraceTime(Info, gc, phases) tm("Adjust Roots", &_gc_timer);


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