Wicketstuff core modules that require to be build using Java 7. Typically this is because of a Java 7 feature requirement or Java 7 compiled upstream dependency.
'org.wicketstuff:wicketstuff-javaee-inject:7.0.0-M4'
<dependency> <groupId>org.wicketstuff</groupId> <artifactId>wicketstuff-javaee-inject</artifactId> <version>7.0.0-M4</version> </dependency>
<dependency org="org.wicketstuff" name="wicketstuff-javaee-inject" rev="7.0.0-M4"/>
"org.wicketstuff", "wicketstuff-javaee-inject", "7.0.0-M4"