LGTM.com - false positive: Java: Kryo from KryoPool.Builder

[JLLeitschuh]

Description of the false positive

The Kryo library doesn't correctly track a safe instance of Kryo being passed to KryoPool.Builder.

As an example, this should be considered safe:

private final KryoPool kryoPool = new KryoPool.Builder(this::newKryo).softReferences().build();

private Kryo newKryo() {
    Kryo kryo = new Kryo();
    kryo.setRegistrationRequired(true);
    // ... ect...
	return kryo;
}

private T readFromInput(Input input) {
	return kryoPool.run(kryo -> kryo.readClassAndObject(input));
}