Fix checkstyle errors when building archetype-generated apps

Checkstyle validation is now enabled by default in onos-dependencies
(archetypes' parent pom). We also add a reference to the archetypes' pom
to disable checkstyle, if needed.

Change-Id: I9b6e6cecf2d704f52ec1f118eae2aafd03cf0b9a
diff --git a/tools/package/archetypes/bundle/pom.xml b/tools/package/archetypes/bundle/pom.xml
index 12e8577..79ee076 100644
--- a/tools/package/archetypes/bundle/pom.xml
+++ b/tools/package/archetypes/bundle/pom.xml
@@ -14,18 +14,20 @@
   ~ See the License for the specific language governing permissions and
   ~ limitations under the License.
   -->
-<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/xsd/maven-4.0.0.xsd">
-  <modelVersion>4.0.0</modelVersion>
+<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/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
 
-  <parent>
-    <groupId>org.onosproject</groupId>
-    <artifactId>onos-archetypes</artifactId>
-    <version>2.4.0-SNAPSHOT</version>
-  </parent>
+    <parent>
+        <groupId>org.onosproject</groupId>
+        <artifactId>onos-archetypes</artifactId>
+        <version>2.4.0-SNAPSHOT</version>
+    </parent>
 
-  <artifactId>onos-bundle-archetype</artifactId>
-  <packaging>maven-archetype</packaging>
+    <artifactId>onos-bundle-archetype</artifactId>
+    <packaging>maven-archetype</packaging>
 
-  <description>ONOS OSGi bundle archetype</description>
+    <description>ONOS OSGi bundle archetype</description>
 
 </project>
diff --git a/tools/package/archetypes/bundle/src/main/resources/archetype-resources/pom.xml b/tools/package/archetypes/bundle/src/main/resources/archetype-resources/pom.xml
index 08f248b..c996608 100644
--- a/tools/package/archetypes/bundle/src/main/resources/archetype-resources/pom.xml
+++ b/tools/package/archetypes/bundle/src/main/resources/archetype-resources/pom.xml
@@ -84,6 +84,16 @@
                 <groupId>org.onosproject</groupId>
                 <artifactId>onos-maven-plugin</artifactId>
             </plugin>
+
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-checkstyle-plugin</artifactId>
+                <!-- Uncomment to disable checkstyle validation
+                <configuration>
+                    <skip>true</skip>
+                </configuration>
+                -->
+            </plugin>
         </plugins>
     </build>
 
diff --git a/tools/package/archetypes/bundle/src/main/resources/archetype-resources/src/main/java/package-info.java b/tools/package/archetypes/bundle/src/main/resources/archetype-resources/src/main/java/package-info.java
index e9d8ea0..4a304bb 100644
--- a/tools/package/archetypes/bundle/src/main/resources/archetype-resources/src/main/java/package-info.java
+++ b/tools/package/archetypes/bundle/src/main/resources/archetype-resources/src/main/java/package-info.java
@@ -1,5 +1,8 @@
+#set( $symbol_pound = '#' )
+#set( $symbol_dollar = '$' )
+#set( $symbol_escape = '\' )
 /*
- * Copyright 2014-present Open Networking Foundation
+ * Copyright ${year}-present Open Networking Foundation
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.