1979   // Lock to modify extra data, and prevent Safepoint from breaking the lock
1980   MutexLocker ml(extra_data_lock(), Mutex::_no_safepoint_check_flag);
1981 
1982   clean_extra_data(&cl);
1983   verify_extra_data_clean(&cl);
1984 }
1985 
1986 void MethodData::deallocate_contents(ClassLoaderData* loader_data) {
1987   release_C_heap_structures();
1988 }
1989 
1990 void MethodData::release_C_heap_structures() {
1991 #if INCLUDE_JVMCI
1992   FailedSpeculation::free_failed_speculations(get_failed_speculations_address());
1993 #endif
1994 }
1995 
1996 #if INCLUDE_CDS
1997 void MethodData::remove_unshareable_info() {
1998   _extra_data_lock = nullptr;



1999 }
2000 
2001 void MethodData::restore_unshareable_info(TRAPS) {
2002   //_extra_data_lock = new Mutex(Mutex::nosafepoint, "MDOExtraData_lock");
2003 }
2004 #endif // INCLUDE_CDS
2005 
2006 #ifdef ASSERT
2007 void MethodData::check_extra_data_locked() const {
2008     // Cast const away, just to be able to verify the lock
2009     // Usually we only want non-const accesses on the lock,
2010     // so this here is an exception.
2011     MethodData* self = (MethodData*)this;
2012     assert(self->extra_data_lock()->owned_by_self() || CDSConfig::is_dumping_archive(), "must have lock");
2013     assert(!Thread::current()->is_Java_thread() ||
2014            JavaThread::current()->is_in_no_safepoint_scope(),
2015            "JavaThread must have NoSafepointVerifier inside lock scope");
2016 }
2017 #endif

1979   // Lock to modify extra data, and prevent Safepoint from breaking the lock
1980   MutexLocker ml(extra_data_lock(), Mutex::_no_safepoint_check_flag);
1981 
1982   clean_extra_data(&cl);
1983   verify_extra_data_clean(&cl);
1984 }
1985 
1986 void MethodData::deallocate_contents(ClassLoaderData* loader_data) {
1987   release_C_heap_structures();
1988 }
1989 
1990 void MethodData::release_C_heap_structures() {
1991 #if INCLUDE_JVMCI
1992   FailedSpeculation::free_failed_speculations(get_failed_speculations_address());
1993 #endif
1994 }
1995 
1996 #if INCLUDE_CDS
1997 void MethodData::remove_unshareable_info() {
1998   _extra_data_lock = nullptr;
1999 #if INCLUDE_JVMCI
2000   _failed_speculations = nullptr;
2001 #endif
2002 }
2003 
2004 void MethodData::restore_unshareable_info(TRAPS) {
2005   //_extra_data_lock = new Mutex(Mutex::nosafepoint, "MDOExtraData_lock");
2006 }
2007 #endif // INCLUDE_CDS
2008 
2009 #ifdef ASSERT
2010 void MethodData::check_extra_data_locked() const {
2011     // Cast const away, just to be able to verify the lock
2012     // Usually we only want non-const accesses on the lock,
2013     // so this here is an exception.
2014     MethodData* self = (MethodData*)this;
2015     assert(self->extra_data_lock()->owned_by_self() || CDSConfig::is_dumping_archive(), "must have lock");
2016     assert(!Thread::current()->is_Java_thread() ||
2017            JavaThread::current()->is_in_no_safepoint_scope(),
2018            "JavaThread must have NoSafepointVerifier inside lock scope");
2019 }
2020 #endif