spring-integration: NullPointerException with aspectj advice in spring boot

Hi Team,

I have a Spring Integration application that processes messages from a MQ and posts it to another. Am trying to migrate to Spring Boot. Snippets from the setup as below ,

<parent>
		<groupId>org.springframework.boot</groupId> 
		<artifactId>spring-boot-starter-parent</artifactId>
		<version>1.5.2.RELEASE</version>`
</parent>

aspectjweaver version - 1.8.9

Application file,

@SpringBootApplication(exclude = { JmsAutoConfiguration.class })
@ComponentScan(basePackages = { "com.abc.xxx" })
public class Application {
	public static void main(String[] args) {
		SpringApplication.run(Application.class, args);
	}
}

ApplicationConfiguration:

@Configuration
@ImportResource(locations = { "classpath:accountingContext.xml" })
public class ApplicationConfiguration {
}

Everything works fine and the application starts without any errors. But when the application processes any message from the queue, I get the following error,

Caused by: org.springframework.messaging.MessageDeliveryException: failed to send Message to channel null'; nested exception is java.lang.NullPointerException
	at org.springframework.integration.channel.AbstractMessageChannel.send(AbstractMessageChannel.java:449)
	at org.springframework.integration.channel.AbstractMessageChannel.send(AbstractMessageChannel.java:373)
	at com.ntrs.geh.message.job.RequestTimeoutCheckerCronJob.execute(RequestTimeoutCheckerCronJob.java:29)
	at org.quartz.core.JobRunShell.run(JobRunShell.java:202)
	... 1 common frames omitted
Caused by: java.lang.NullPointerException: null
	at org.springframework.integration.channel.AbstractMessageChannel.send(AbstractMessageChannel.java:406)
	... 4 common frames omitted

Upon debugging, I found that the datatypes reference is null in the following line,

	if (this.datatypes.length > 0)` in the `AbstractMessageChannel

After referring to this thread https://github.com/spring-cloud/spring-cloud-stream/issues/881

I removed the aspect defined on the channel below and it started to work fine.

<tx:advice id="txAdvice" transaction-manager="dataSourceTransactionManager">
	<tx:attributes>
		<tx:method name="send" />
	</tx:attributes>
</tx:advice>
<int:channel id="requestSchemaValidationChannel" />

<aop:config>
	<aop:advisor advice-ref="txAdvice" pointcut="bean(requestSchemaValidationChannel)" />
</aop:config>

The same configuration used to work before we migrated to spring boot. Can you please let me know if am doing some thing wrong or if there is a workaround ?