[DOXIASITETOOLS-195] Require Java 7
diff --git a/pom.xml b/pom.xml
index 716bfa6..3bfb8df 100644
--- a/pom.xml
+++ b/pom.xml
@@ -69,6 +69,7 @@
   </distributionManagement>
 
   <properties>
+    <javaVersion>7</javaVersion>
     <doxiaVersion>1.8</doxiaVersion>
     <maven.site.path>doxia-sitetools-archives/doxia-sitetools-LATEST</maven.site.path>
   </properties>