Apply appropriate @SuppressWarnings annotations for rawtypes usages.

Format source code.

Optimize imports.

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

@@ -1352,7 +1352,6 @@ public abstract class AbstractGemFireOperationsSessionRepository
 		}
 
 		@Override
-		@SuppressWarnings("all")
 		public Set<Entry<String, Object>> entrySet() {
 
 			synchronized (getLock()) {

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

@@ -69,7 +69,6 @@ public class GemFireOperationsSessionRepository extends AbstractGemFireOperation
 	 * @see #configure(Session)
 	 */
 	@NonNull
-	@SuppressWarnings("all")
 	public Session createSession() {
 		return configure(GemFireSession.create());
 	}
@@ -161,7 +160,6 @@ public class GemFireOperationsSessionRepository extends AbstractGemFireOperation
 	 * @see #commit(Session)
 	 * @see #touch(Session)
 	 */
-	@SuppressWarnings("all")
 	private Session prepare(Session session) {
 		return touch(commit(registerInterest(configure(session))));
 	}
@@ -179,7 +177,6 @@ public class GemFireOperationsSessionRepository extends AbstractGemFireOperation
 	 * @see #isNonNullAndDirty(Session)
 	 * @see #doSave(Session)
 	 */
-	@SuppressWarnings("all")
 	public void save(@Nullable Session session) {
 
 		if (isNonNullAndDirty(session)) {

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

@@ -141,7 +141,7 @@ import org.springframework.util.StringUtils;
  * @since 1.1.0
  */
 @Configuration
-@SuppressWarnings("unused")
+@SuppressWarnings({ "rawtypes", "unused" })
 public class GemFireHttpSessionConfiguration extends AbstractGemFireHttpSessionConfiguration implements ImportAware {
 
 	/**