Book: How to Set Up SSO with SAML v2
Section: 2.2.2.5. 5. Create and Configure a picketlink.xml File for an SP
Revision: n_2116163_how-to-set-up-sso-with-saml-v2_version_7.0.beta_edition_1.0_release_0-revision_7626323

Description: There is stated that "By default, picketlink.xml is located in the WEB-INF directory of the IDP web application.", which is correct for IdP we application. For SP web app, there should be ".. of the SP web application."

Suggestion: Fix referred application type from IDP to SP.