Polish GemFire

* Remove Compile Warnings
* Correct @since
* Add tests
* Add to What's New in documentation

spring-session/src/main/java/org/springframework/session/data/gemfire/AbstractGemFireOperationsSessionRepository.java

@@ -316,6 +316,7 @@ public abstract class AbstractGemFireOperationsSessionRepository extends CacheLi
 	 * @see com.gemstone.gemfire.Delta
 	 * @see com.gemstone.gemfire.Instantiator
 	 */
+	@SuppressWarnings("serial")
 	public static class GemFireSession implements Comparable<ExpiringSession>, DataSerializable, Delta, ExpiringSession {
 
 		protected static final boolean DEFAULT_ALLOW_JAVA_SERIALIZATION = true;
@@ -590,6 +591,7 @@ public abstract class AbstractGemFireOperationsSessionRepository extends CacheLi
 	 * @see com.gemstone.gemfire.Delta
 	 * @see com.gemstone.gemfire.Instantiator
 	 */
+	@SuppressWarnings("serial")
 	public static class GemFireSessionAttributes implements DataSerializable, Delta {
 
 		protected static final boolean DEFAULT_ALLOW_JAVA_SERIALIZATION = true;

spring-session/src/main/java/org/springframework/session/data/gemfire/config/annotation/web/http/EnableGemFireHttpSession.java

@@ -103,7 +103,6 @@ import com.gemstone.gemfire.cache.client.ClientRegionShortcut;
  */
 @Documented
 @Retention(RetentionPolicy.RUNTIME)
-@SuppressWarnings("unused")
 @Target(ElementType.TYPE)
 @Configuration
 @Import(GemFireHttpSessionConfiguration.class)

spring-session/src/main/java/org/springframework/session/data/gemfire/config/annotation/web/http/GemFireHttpSessionConfiguration.java

@@ -71,7 +71,6 @@ import com.gemstone.gemfire.cache.client.ClientRegionShortcut;
  * @since 1.1.0
  */
 @Configuration
-@SuppressWarnings("unused")
 public class GemFireHttpSessionConfiguration extends SpringHttpSessionConfiguration
 		implements BeanClassLoaderAware, ImportAware {
 

spring-session/src/main/java/org/springframework/session/data/gemfire/support/GemFireUtils.java

@@ -32,7 +32,7 @@ import com.gemstone.gemfire.internal.cache.GemFireCacheImpl;
  * and is used by Spring Session's GemFire adapter support classes.
  *
  * @author John Blum
- * @since 1.0.0
+ * @since 1.1.0
  */
 public abstract class GemFireUtils {