Prepare codebase to adhere to Checkstyle rules

Issue gh-393

samples/httpsession-gemfire-p2p/src/integration-test/groovy/sample/AttributeTests.groovy

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2015 the original author or authors.
+ * Copyright 2014-2016 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package sample
 
 import geb.spock.*
@@ -42,4 +43,4 @@ class AttributeTests extends GebReportingSpec {
 		attributes[0].name == 'a'
 		attributes[0].value == 'b'
 	}
-}
+}

samples/httpsession-gemfire-p2p/src/integration-test/groovy/sample/pages/HomePage.groovy

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2015 the original author or authors.
+ * Copyright 2014-2016 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package sample.pages
 
 import geb.*

samples/httpsession-gemfire-p2p/src/main/java/sample/Config.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2015 the original author or authors.
+ * Copyright 2014-2016 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package sample;
 
 import java.util.Properties;

samples/httpsession-gemfire-p2p/src/main/java/sample/Initializer.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2015 the original author or authors.
+ * Copyright 2014-2016 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package sample;
 
 import org.springframework.session.web.context.AbstractHttpSessionApplicationInitializer;
@@ -25,4 +26,4 @@ public class Initializer
 		super(Config.class); // <2>
 	}
 }
-// end::class[]
+// end::class[]

samples/httpsession-gemfire-p2p/src/main/java/sample/SessionServlet.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2015 the original author or authors.
+ * Copyright 2014-2016 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -13,9 +13,11 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 package sample;
 
 import java.io.IOException;
+
 import javax.servlet.ServletException;
 import javax.servlet.annotation.WebServlet;
 import javax.servlet.http.HttpServlet;