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src/share/vm/code/nmethod.cpp
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@@ -1617,11 +1617,15 @@
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);
+ // 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);
}
}
}
}
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