Is there a way to check if jobject is a local or global reference?

Is there a way to check if jobject is a local or global reference?

I cannot find an answer if there is a way to test an arbitrary jobject in
order to detect if it is a local or global reference. I do not see it in
JNI documentation.
The reason for this question is to add some error checking and logic for
my custom JNI utilities. In my code jobject reference can come from
different places (including from other users/modules) so I am looking for
a way to test it.
For example I want to have a utility to "promote" a local to global
reference, but it also should work with global references (that is it
shouldn't crash or anything if a global reference is passed). I could try
exception check but I don't know i can avoid false positives.
What can happen if DeleteLocalRef is called on a global reference.
Documentation says either global or local can be passed to NewGlobalRef
but I assume there will be a problem with deleting a wrong one.
jobject toGlobalRef(jobject& locRef)
{
JNIEnv* env = jniEnv(); //gets correct JNIEnv* here
if (locRef == NULL)
return NULL;
jobject globalRef = env->NewGlobalRef(locRef);
env->DeleteLocalRef(locRef);
locRef = NULL;
return globalRef;
}