Uses Spring 4.0 dependencies

Updated the buid version 1.1.0

gradle.properties

@@ -1,10 +1,10 @@
 junitVersion=4.8.2
 jodaTimeVersion=2.1
-springVersion=3.1.3.RELEASE
+springVersion=4.0.0.RELEASE
 splunkVersion=1.0.0
 log4jVersion=1.2.12
-version=1.0.0.BUILD-SNAPSHOT
-springIntegrationVersion=2.2.1.RELEASE
+version=1.1.0.BUILD-SNAPSHOT
+springIntegrationVersion=4.0.0.M2
 cglibVersion=2.2
 commonsPoolVersion=1.6
 mockitoVersion=1.9.0

src/main/java/org/springframework/integration/splunk/inbound/SplunkPollingChannelAdapter.java

@@ -17,12 +17,12 @@ package org.springframework.integration.splunk.inbound;
 
 import java.util.List;
 
-import org.springframework.integration.Message;
 import org.springframework.integration.context.IntegrationObjectSupport;
 import org.springframework.integration.core.MessageSource;
 import org.springframework.integration.splunk.event.SplunkEvent;
 import org.springframework.integration.splunk.support.SplunkExecutor;
 import org.springframework.integration.support.MessageBuilder;
+import org.springframework.messaging.Message;
 import org.springframework.util.Assert;
 
 /**

src/main/java/org/springframework/integration/splunk/outbound/SplunkOutboundChannelAdapter.java

@@ -16,10 +16,10 @@
 
 package org.springframework.integration.splunk.outbound;
 
-import org.springframework.integration.Message;
 import org.springframework.integration.handler.AbstractReplyProducingMessageHandler;
 import org.springframework.integration.splunk.support.SplunkExecutor;
 import org.springframework.integration.support.MessageBuilder;
+import org.springframework.messaging.Message;
 import org.springframework.util.Assert;
 
 
@@ -47,13 +47,6 @@ public class SplunkOutboundChannelAdapter extends AbstractReplyProducingMessageH
 		this.splunkExecutor = splunkExecutor;
 	}
 
-	/**
-	 *
-	 */
-	@Override
-	protected void onInit() {
-		super.onInit();
-	}
 
 	@Override
 	protected Object handleRequestMessage(Message<?> requestMessage) {

src/main/java/org/springframework/integration/splunk/support/SplunkExecutor.java

@@ -19,12 +19,12 @@ import java.util.List;
 
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
-import org.springframework.integration.Message;
 import org.springframework.integration.MessageHandlingException;
-import org.springframework.integration.MessagingException;
 import org.springframework.integration.splunk.core.DataReader;
 import org.springframework.integration.splunk.core.DataWriter;
 import org.springframework.integration.splunk.event.SplunkEvent;
+import org.springframework.messaging.Message;
+import org.springframework.messaging.MessagingException;
 
 /**
  * Bundles common core logic for the Splunk components.

src/test/java/org/springframework/integration/splunk/outbound/SplunkOutboundChannelAdapterTests.java

@@ -21,8 +21,8 @@ import junit.framework.Assert;
 
 import org.junit.Before;
 import org.junit.Test;
-import org.springframework.integration.Message;
 import org.springframework.integration.splunk.support.SplunkExecutor;
+import org.springframework.messaging.Message;
 
 /**
  * @author Jarred Li

src/test/java/org/springframework/integration/splunk/support/SplunkExecutorTests.java

@@ -26,11 +26,11 @@ import junit.framework.Assert;
 
 import org.junit.Before;
 import org.junit.Test;
-import org.springframework.integration.Message;
 import org.springframework.integration.splunk.core.DataReader;
 import org.springframework.integration.splunk.core.DataWriter;
 import org.springframework.integration.splunk.event.SplunkEvent;
 import org.springframework.integration.support.MessageBuilder;
+import org.springframework.messaging.Message;
 
 /**
  * @author Jarred Li