diff -r 538ae1a4ff4a -r d0aad97dfd2e 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	Tue Nov 13 07:56:02 2012 +0100
@@ -1,3 +1,4 @@
+<?xml version="1.0"?>
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
   xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
   <modelVersion>4.0.0</modelVersion>
@@ -44,7 +45,16 @@
                         <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>