/**
 * Licensed to Apereo under one or more contributor license
 * agreements. See the NOTICE file distributed with this work
 * for additional information regarding copyright ownership.
 * Apereo licenses this file to you under the Apache License,
 * Version 2.0 (the "License"); you may not use this file
 * except in compliance with the License.  You may obtain a
 * copy of the License at the following location:
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.jasig.portlet.survey.security;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;
import org.jasig.portlet.survey.security.uportal.UPortalSecurityFilter;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.security.web.authentication.preauth.j2ee.J2eePreAuthenticatedProcessingFilter;

/**
 *
 * @author mglazier
 */
public class UportalPreAuthenticatedProcessingFilter extends J2eePreAuthenticatedProcessingFilter {

    private static final Logger LOGGER = LoggerFactory
            .getLogger(UportalPreAuthenticatedProcessingFilter.class);


    @Override
    protected Object getPreAuthenticatedPrincipal(HttpServletRequest request) {
        HttpSession session = request.getSession(false);
        if (session == null) {
            return null;
        }
        
        final UserDetails details = (UserDetails)session
                .getAttribute(UPortalSecurityFilter.AUTHENTICATION_TOKEN_KEY);
        return details;
    }

    @Override
    protected Object getPreAuthenticatedCredentials(HttpServletRequest request) {
        return "this-value-is-ignored";
    }
}

/**
 * Licensed to Apereo under one or more contributor license
 * agreements. See the NOTICE file distributed with this work
 * for additional information regarding copyright ownership.
 * Apereo licenses this file to you under the Apache License,
 * Version 2.0 (the "License"); you may not use this file
 * except in compliance with the License.  You may obtain a
 * copy of the License at the following location:
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.jasig.portlet.survey.security;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;
import org.jasig.portlet.survey.security.uportal.UPortalSecurityFilter;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.security.web.authentication.preauth.j2ee.J2eePreAuthenticatedProcessingFilter;

/**
 *
 * @author mglazier
 */
public class UportalPreAuthenticatedProcessingFilter extends J2eePreAuthenticatedProcessingFilter {

    @Override
    protected Object getPreAuthenticatedPrincipal(HttpServletRequest request) {
        HttpSession session = request.getSession(false);
        if (session == null) {
            return null;
        }

        final UserDetails details = (UserDetails)session
                .getAttribute(UPortalSecurityFilter.AUTHENTICATION_TOKEN_KEY);
        return details;
    }

    @Override
    protected Object getPreAuthenticatedCredentials(HttpServletRequest request) {
        return "this-value-is-ignored";
    }

}

Remove unused member variable