primefaces#3427 Java 7

Author: tandraschko

pom.xml

@@ -208,10 +208,10 @@
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-compiler-plugin</artifactId>
-                <version>3.1</version>
+                <version>3.7.0</version>
                 <configuration>
-                    <source>1.6</source>
-                    <target>1.6</target>
+                    <source>1.7</source>
+                    <target>1.7</target>
                     <encoding>${project.build.sourceEncoding}</encoding>
                 </configuration>
                 <executions>