Fix failing test on Sonar build.

Avoid calling the I18N utility by checking the display label key directly.

git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/modules/recordsmanagement/HEAD@105312 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261

rm-server/source/java/org/alfresco/module/org_alfresco_module_rm/classification/ClearanceLevel.java

@@ -84,4 +84,15 @@ public class ClearanceLevel
     }
 
     @Override public int hashCode() { return highestClassificationLevel.hashCode(); }
+
+    /**
+     * Get the display label key. This method is used for unit testing, where we want to avoid problems introduced by
+     * the static call to the I18N utility.
+     *
+     * @return The key for the display label of this security clearance.
+     */
+    protected String getDisplayLabelKey()
+    {
+        return displayLabelKey;
+    }
 }