The <poller/> element no longer defines trigger properties (interval, initial-delay, cron, etc). Instead it expects a sub-element - either <interval-trigger/> or <cron-trigger/> (INT-423).

org.springframework.integration.ws/src/test/java/org/springframework/integration/ws/config/simpleWebServiceOutboundGatewayParserTests.xml

@@ -63,7 +63,9 @@
 	<ws:outbound-gateway id="gatewayWithPoller"
 		                 request-channel="pollableInputChannel"
 	                     uri="http://example.org">
-			<si:poller interval="5000"/>
+		<si:poller>
+			<si:interval-trigger interval="5000"/>
+		</si:poller>
 	</ws:outbound-gateway>
 
 	<bean id="sourceExtractor" class="org.springframework.integration.ws.config.StubSourceExtractor"/>