package org.sakaiproject.portal.service;
<BUG>import java.util.ConcurrentModificationException;</BUG>
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
<BUG>import java.util.Properties;
import javax.servlet.http.HttpServletRequest;</BUG>
import org.apache.commons.logging.Log;

package org.sakaiproject.portal.service;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Properties;
import java.util.concurrent.ConcurrentHashMap;
import javax.servlet.http.HttpServletRequest;
import org.apache.commons.logging.Log;
