178 

   178 

   179     // Let the size policy know we're starting

   179     // Let the size policy know we're starting

   180     size_policy->major_collection_begin();

   180     size_policy->major_collection_begin();

   181 

   181 

   182     CodeCache::gc_prologue();

   182     CodeCache::gc_prologue();

   184     BiasedLocking::preserve_marks();

   183     BiasedLocking::preserve_marks();

   185 

   184 

   186     // Capture heap size before collection for printing.

   185     // Capture heap size before collection for printing.

   187     size_t prev_used = heap->used();

   186     size_t prev_used = heap->used();

   188 

   187 

   249     // Delete metaspaces for unloaded class loaders and clean up loader_data graph

   248     // Delete metaspaces for unloaded class loaders and clean up loader_data graph

   250     ClassLoaderDataGraph::purge();

   249     ClassLoaderDataGraph::purge();

   251     MetaspaceAux::verify_metrics();

   250     MetaspaceAux::verify_metrics();

   252 

   251 

   253     BiasedLocking::restore_marks();

   252     BiasedLocking::restore_marks();

   255     CodeCache::gc_epilogue();

   253     CodeCache::gc_epilogue();

   256     JvmtiExport::gc_epilogue();

   254     JvmtiExport::gc_epilogue();

   257 

   255 

   258     COMPILER2_PRESENT(DerivedPointerTable::update_pointers());

   256     COMPILER2_PRESENT(DerivedPointerTable::update_pointers());

   259 

   257