Documentation for openid4java that is library that provide openid features to java webapps.

the supports the following specifications:
- openid authentication 2.0
- openid authentication 1.1 (in compatibility mode)
- openid attribute exchange 1.0
- openid simple registration 1.0 and 1.1, draft 1
- openid provider authentication policy extension 1.0
- openid information cards 1.0, draft 1
this package provides javadocs for libopenid4java-java.