Compile test sources against Java 1.8

Author: robbytx

mrbean/pom.xml

@@ -51,6 +51,16 @@ ${project.groupId}.mrbean.*;version=${project.version}
 	<artifactId>replacer</artifactId>
       </plugin>
 
+      <plugin>
+          <groupId>org.apache.maven.plugins</groupId>
+          <artifactId>maven-compiler-plugin</artifactId>
+          <configuration>
+              <!-- Enable testing with Java 8 features, especially default methods in interfaces -->
+              <testSource>1.8</testSource>
+              <testTarget>1.8</testTarget>
+          </configuration>
+      </plugin>
+
       <plugin>
         <!--  We will shade ASM, to simplify deployment, avoid version conflicts -->
         <groupId>org.apache.maven.plugins</groupId>