TL;DR It’s a good idea to install JCE.
Installing the Java Cryptography Extension JCE is highly recommended if your countries laws permit it’s importation and use, for two reasons: adherence with standards & interoperability. There’s some pretty cool stuff being developed by those who don’t care too much for interoperability, but for those of us in the Enterprise Identity Management space, it’s essential.
Java 8 gives you basic crypto, but includes limits on Maximum Keysizes. The following table provides a quick summary.