2653ce9aed
JIRA: https://jira.spring.io/browse/INT-3701 Allow Spring Boot to determine type created by GatewayProxyFactoryBean Spring Boot's @ConditionalOnBean can be used to activate some configuration when a bean of a particular type is present in the application context. To avoid early initialization, the search for beans is performed without instantiating them, i.e. it relies on the information that's available from the bean's class and its bean definition. This causes a problem with GatewayProxyFactoryBean as its a FactoryBean<Object> so Boot's best guess is that the bean that's produced by the factory will be an Object. For cases where the bean's type signiture does not contain enougn information to determine its type, Boot looks at an attribute, factoryBeanObjectType, on the factory bean's definition. The value of this attribute can be a Class or a String class name. This commit updates MessagingGatewayRegistrar to set the value of factoryBeanObjectType attribute to be the configured service interface for the gateway.
Spring Integration 
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