In READMEs like:

---begin---
http://www.oracle.com/technetwork/java/javase/jre-8-readme-2095710.html

Optional Files and Directories

The following files may be optionally excluded from redistributions.
..deleted...
The corresponding man pages should be excluded for any excluded executables (with paths listed below beginning with bin/, for the Solaris™ Operating System and Linux).

   lib/ext/ [Everything under this directory can be excluded]
        sunjce_provider.jar,sunec.jar, sunpkcs11.jar and
            sunmscapi.jar -
---end---

This is unclear and needs to be reworked a bit: not all providers can be removed unless there is an accessible replacement provider. Crypto users ultimately need cryptographic provider(s) with the algorithms described in this doc:

    http://docs.oracle.com/javase/8/docs/technotes/guides/security/StandardNames.html#impl

Otherwise, crypto calls will start to fail due to the missing algs.