INT-2689 - SI builds without warnings (Except Spring Integration HTTP)

* Ensure that no deprecation warnings occur
* Spring Integration builds with all tests successfully for Spring 3.1.2.RELEASE and 3.0.7.RELEASE (Except Spring Integration HTTP)

For reference see: https://jira.springsource.org/browse/INT-2689

INT-2694 - Fix Http Test Failures with Spring 3.0

As part of INT-2689, fix Http Test Failures in the Spring Integration Http Module when using Spring 3.0.7.RELEASE
For reference see: https://jira.springsource.org/browse/INT-2694

spring-integration-ip/src/main/java/org/springframework/integration/ip/tcp/connection/CachingClientConnectionFactory.java

@@ -67,11 +67,13 @@ public class CachingClientConnectionFactory extends AbstractClientConnectionFact
 	}
 
 	@Override
+	@SuppressWarnings("deprecation")
 	public synchronized void setPoolSize(int poolSize) {
 		this.pool.setPoolSize(poolSize);
 	}
 
 	@Override
+	@SuppressWarnings("deprecation")
 	public int getPoolSize() {
 		return this.pool.getPoolSize();
 	}

spring-integration-ip/src/main/java/org/springframework/integration/ip/tcp/connection/TcpNioSSLConnection.java

@@ -112,6 +112,7 @@ public class TcpNioSSLConnection extends TcpNioConnection {
 	 * is handled by the thread running in the {@link SSLChannelOutputStream#doWrite(ByteBuffer)}
 	 * method, which is awoken here, as a result of reaching that stage in the handshaking.
 	 */
+	@SuppressWarnings("fallthrough")
 	private SSLEngineResult decode(ByteBuffer networkBuffer) throws IOException {
 		SSLEngineResult result = new SSLEngineResult(Status.OK, this.sslEngine.getHandshakeStatus(), 0, 0);
 		HandshakeStatus handshakeStatus = this.sslEngine.getHandshakeStatus();