I don't know Java, clearly, as I don't even know what to name a file that's going to do the override. Also, as mentioned elsewhere, SecureRandom seems the easier target as it's a pluggable interface for entropy providers.
That said, can't you override the equals() for your subtype? I'm talking about the implementation of BigInteger::equals(MyBigInt x), not MyBigInt::equals(BigInteger x). Or does that need to be done on BigInteger-proper, versus its subclass?
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I don't know Java, clearly, as I don't even know what to name a file that's going to do the override. Also, as mentioned elsewhere, SecureRandom seems the easier target as it's a pluggable interface for entropy providers.
That said, can't you override the equals() for your subtype? I'm talking about the implementation of BigInteger::equals(MyBigInt x), not MyBigInt::equals(BigInteger x). Or does that need to be done on BigInteger-proper, versus its subclass?
You can override the .equals() for your subtype but look at the check:
It never calls root.equals(). It calls .equals() on the result of the .divide(), which is a standard java.math.BigInteger.