Paragraph 2 of Appendix A of the JCE reference guide (http://java.sun.com/j2se/1.5.0/docs/guide/security/jce/JCERefGuide.html#AppA)states:

In some cases naming conventions are suggested for forming names that are not explicitly listed, to facilitate name consistency across provider implementations. Such suggestions use items in angle brackets (such as <digest> and <encryption>) as placeholders to be replaced by specific message digest, encryption algorithm, and other names.

The above language states that the naming conventions for forming names such as PBEWith<digest>And<encryption> or PBEWith<prf>And<encryption> are suggestions, not requirements.

The above text should be changed to make it clear that the naming conventions are requirements, not recommendations.