diff --git a/src/edu/cornell/mannlib/vitro/webapp/visualization/tools/ToolsRequestHandler.java b/src/edu/cornell/mannlib/vitro/webapp/visualization/tools/ToolsRequestHandler.java
index fee8e3ed..ad98f7f0 100644
--- a/src/edu/cornell/mannlib/vitro/webapp/visualization/tools/ToolsRequestHandler.java
+++ b/src/edu/cornell/mannlib/vitro/webapp/visualization/tools/ToolsRequestHandler.java
@@ -1,8 +1,8 @@
+/* $This file is distributed under the terms of the license in /doc/license.txt$ */
+
 package edu.cornell.mannlib.vitro.webapp.visualization.tools;
 
-import java.util.ArrayList;
 import java.util.HashMap;
-import java.util.List;
 import java.util.Map;
 
 import org.apache.commons.logging.Log;
@@ -14,11 +14,7 @@ import edu.cornell.mannlib.vitro.webapp.auth.requestedAction.usepages.RefreshVis
 import edu.cornell.mannlib.vitro.webapp.controller.VitroRequest;
 import edu.cornell.mannlib.vitro.webapp.controller.freemarker.responsevalues.ResponseValues;
 import edu.cornell.mannlib.vitro.webapp.controller.freemarker.responsevalues.TemplateResponseValues;
-import edu.cornell.mannlib.vitro.webapp.visualization.exceptions.IllegalConstructedModelIdentifierException;
 import edu.cornell.mannlib.vitro.webapp.visualization.exceptions.MalformedQueryParametersException;
-import edu.cornell.mannlib.vitro.webapp.visualization.valueobjects.ConstructedModel;
-import edu.cornell.mannlib.vitro.webapp.visualization.valueobjects.ConstructedModelTracker;
-import edu.cornell.mannlib.vitro.webapp.visualization.visutils.UtilityFunctions;
 import edu.cornell.mannlib.vitro.webapp.visualization.visutils.VisualizationRequestHandler;
 
 public class ToolsRequestHandler implements VisualizationRequestHandler {