A suggested bug fix for code lab issue #413

https://github.com/docker/labs/issues/413

developer-tools/java-debugging/app/pom.xml

@@ -1,4 +1,5 @@
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+<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/maven-v4_0_0.xsd">
 	<modelVersion>4.0.0</modelVersion>
 	<groupId>com.docker</groupId>
@@ -66,6 +67,10 @@
 			</exclusions>
 		</dependency>
 	</dependencies>
+	<properties>
+		<maven.compiler.source>1.8</maven.compiler.source>
+		<maven.compiler.target>1.8</maven.compiler.target>
+	</properties>
 	<build>
 		<finalName>UserSignup</finalName>
 	</build>