[DS-707] Make inner classes static

git-svn-id: http://scm.dspace.org/svn/repo/dspace/trunk@5471 9c30dcfa-912a-0410-8fc2-9e0234be79fd

dspace-api/src/main/java/org/dspace/authenticate/LDAPHierarchicalAuthentication.java

@@ -344,7 +344,7 @@ public class LDAPHierarchicalAuthentication
      * Internal class to manage LDAP query and results, mainly
      * because there are multiple values to return.
      */
-    public class SpeakerToLDAP {
+    private static class SpeakerToLDAP {
 
         private Logger log = null;