Configure maven-compiler-plugin target/source to 1.8

ace-am/pom.xml

@@ -41,6 +41,14 @@
                     </webResources>
                 </configuration>
             </plugin>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-compiler-plugin</artifactId>
+                <configuration>
+                    <source>1.8</source>
+                    <target>1.8</target>
+                </configuration>
+            </plugin>
             <!-- debian package made easy -->
             <!--
             <plugin>

ace-am/src/main/java/edu/umiacs/ace/monitor/access/GroupSummaryContext.java

@@ -13,6 +13,10 @@ import java.util.List;
 import java.util.Map;
 
 /**
+ * Servlet context listener which acts as a cache for Summary information about
+ * groups in ACE
+ *
+ * If there are many groups, it's conceivable that this could be a strain on memory
  *
  * Created by shake on 4/4/17.
  */