Add Maven enforcer plugin in parent POM to check against minimum 1.7 JDK
diff --git a/pom.xml b/pom.xml
index d35f0b6..787febf 100644
--- a/pom.xml
+++ b/pom.xml
@@ -570,6 +570,25 @@
<xmlOutput>true</xmlOutput>
</configuration>
</plugin>
+
+ <plugin>
+ <artifactId>maven-enforcer-plugin</artifactId>
+ <executions>
+ <execution>
+ <id>enforce-java</id>
+ <goals>
+ <goal>enforce</goal>
+ </goals>
+ <configuration>
+ <rules>
+ <requireJavaVersion>
+ <version>1.7.0</version>
+ </requireJavaVersion>
+ </rules>
+ </configuration>
+ </execution>
+ </executions>
+ </plugin>
</plugins>
</build>