src/share/vm/code/nmethod.cpp

*** 1617,1627 ****
        if (klass == NULL)  continue;  // ignore things like evol_method
  
        // During GC the is_alive closure is non-NULL, and is used to
        // determine liveness of dependees that need to be updated.
        if (is_alive == NULL || klass->is_loader_alive(is_alive)) {
!         InstanceKlass::cast(klass)->remove_dependent_nmethod(this);
        }
      }
    }
  }
  
--- 1617,1631 ----
        if (klass == NULL)  continue;  // ignore things like evol_method
  
        // During GC the is_alive closure is non-NULL, and is used to
        // determine liveness of dependees that need to be updated.
        if (is_alive == NULL || klass->is_loader_alive(is_alive)) {
!         // The GC defers deletion of this entry, since there might be multiple threads
!         // iterating over the _dependencies graph. Other call paths are single-threaded
!         // and may delete it immediately.
!         bool delete_immediately = is_alive == NULL;
!         InstanceKlass::cast(klass)->remove_dependent_nmethod(this, delete_immediately);
        }
      }
    }
  }