220 }
221
222 // Disable any dependent concurrent compilations
223 SystemDictionary::notice_modification();
224
225 // Set flag indicating that some invariants are no longer true.
226 // See jvmtiExport.hpp for detailed explanation.
227 JvmtiExport::set_has_redefined_a_class();
228
229 // check_class() is optionally called for product bits, but is
230 // always called for non-product bits.
231 #ifdef PRODUCT
232 if (log_is_enabled(Trace, redefine, class, obsolete, metadata)) {
233 #endif
234 log_trace(redefine, class, obsolete, metadata)("calling check_class");
235 CheckClass check_class(thread);
236 ClassLoaderDataGraph::classes_do(&check_class);
237 #ifdef PRODUCT
238 }
239 #endif
240 }
241
242 void VM_RedefineClasses::doit_epilogue() {
243 unlock_classes();
244
245 // Free os::malloc allocated memory.
246 os::free(_scratch_classes);
247
248 // Reset the_class to null for error printing.
249 _the_class = NULL;
250
251 if (log_is_enabled(Info, redefine, class, timer)) {
252 // Used to have separate timers for "doit" and "all", but the timer
253 // overhead skewed the measurements.
254 julong doit_time = _timer_rsc_phase1.milliseconds() +
255 _timer_rsc_phase2.milliseconds();
256 julong all_time = _timer_vm_op_prologue.milliseconds() + doit_time;
257
258 log_info(redefine, class, timer)
259 ("vm_op: all=" JULONG_FORMAT " prologue=" JULONG_FORMAT " doit=" JULONG_FORMAT,
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220 }
221
222 // Disable any dependent concurrent compilations
223 SystemDictionary::notice_modification();
224
225 // Set flag indicating that some invariants are no longer true.
226 // See jvmtiExport.hpp for detailed explanation.
227 JvmtiExport::set_has_redefined_a_class();
228
229 // check_class() is optionally called for product bits, but is
230 // always called for non-product bits.
231 #ifdef PRODUCT
232 if (log_is_enabled(Trace, redefine, class, obsolete, metadata)) {
233 #endif
234 log_trace(redefine, class, obsolete, metadata)("calling check_class");
235 CheckClass check_class(thread);
236 ClassLoaderDataGraph::classes_do(&check_class);
237 #ifdef PRODUCT
238 }
239 #endif
240
241 // Clean up any metadata now unreferenced while MetadataOnStackMark is set.
242 ClassLoaderDataGraph::clean_deallocate_lists(false);
243 }
244
245 void VM_RedefineClasses::doit_epilogue() {
246 unlock_classes();
247
248 // Free os::malloc allocated memory.
249 os::free(_scratch_classes);
250
251 // Reset the_class to null for error printing.
252 _the_class = NULL;
253
254 if (log_is_enabled(Info, redefine, class, timer)) {
255 // Used to have separate timers for "doit" and "all", but the timer
256 // overhead skewed the measurements.
257 julong doit_time = _timer_rsc_phase1.milliseconds() +
258 _timer_rsc_phase2.milliseconds();
259 julong all_time = _timer_vm_op_prologue.milliseconds() + doit_time;
260
261 log_info(redefine, class, timer)
262 ("vm_op: all=" JULONG_FORMAT " prologue=" JULONG_FORMAT " doit=" JULONG_FORMAT,
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