JIRA: https://jira.spring.io/browse/INT-3548 Refactoring in 4.1 broke the `@Payloads` annotation in the `MessagingMethodInvokerHelper`. The test case missed this because it explicitly declares `@Payloads List<Integer>` which is actually handled by the case below: ````java else if (Collection.class.isAssignableFrom(parameterType) || parameterType.isArray()) { if (canProcessMessageList) { sb.append("messages.![payload]"); ... ```` `List<?>` triggered ````java else if ((parameterTypeDescriptor.isAssignableTo(messageListTypeDescriptor) || parameterTypeDescriptor .isAssignableTo(messageArrayTypeDescriptor))) { sb.append("messages"); ... ```` - Add back the logic to detect `@Payloads`. - Remove `@Payloads` from the existing test. - Add a new test that uses `List<?>`
Spring Integration 
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