diff -r 538ae1a4ff4a -r 413d37a24a4d javaquery/demo-calculator/pom.xml
--- a/javaquery/demo-calculator/pom.xml	Fri Nov 09 12:15:25 2012 +0100
+++ b/javaquery/demo-calculator/pom.xml	Fri Nov 16 08:06:48 2012 +0100
@@ -44,7 +44,16 @@
                         <argument>${project.build.directory}/classes/org/apidesign/bck2brwsr/mavenhtml/Calculator.xhtml</argument>
                     </arguments>
                 </configuration>
-            </plugin>            
+            </plugin>
+         <plugin>
+            <groupId>org.apache.maven.plugins</groupId>
+            <artifactId>maven-compiler-plugin</artifactId>
+            <version>2.3.2</version>
+            <configuration>
+               <source>1.6</source>
+               <target>1.6</target>
+            </configuration>
+         </plugin>
       </plugins>
   </build>