Index: lams_common/conf/hibernate/mappings/org/lamsfoundation/lams/learningdesign/Activity.hbm.xml
===================================================================
diff -u -r7cd34158c707cffe110fbb81a0767bbba53e25fd -r7576d54325b4bb5d3083e38c30353982c85a953b
--- lams_common/conf/hibernate/mappings/org/lamsfoundation/lams/learningdesign/Activity.hbm.xml	(.../Activity.hbm.xml)	(revision 7cd34158c707cffe110fbb81a0767bbba53e25fd)
+++ lams_common/conf/hibernate/mappings/org/lamsfoundation/lams/learningdesign/Activity.hbm.xml	(.../Activity.hbm.xml)	(revision 7576d54325b4bb5d3083e38c30353982c85a953b)
@@ -132,7 +132,9 @@
 				<meta attribute="class-description" inherit="false">@hibernate.class </meta>
 				<property name="toolContentId" type="java.lang.Long" column="tool_content_id" length="20" />
 				
-				<set name="toolSessions" lazy="false" inverse="true" cascade="none" >
+				<!-- needs to be lazy because each tool session contains user and
+				lesson -->
+				<set name="toolSessions" lazy="true" inverse="true" cascade="none" >
 			        <meta attribute="field-description">@hibernate.set lazy="false" inverse="true" cascade="none"
         												@hibernate.collection-key column="tool_session_id"
         										        @hibernate.collection-one-to-many class="org.lamsfoundation.lams.tool.ToolSession"