Make StepExecutionRequest JSON compatible [BATCH-2732]

[spring-projects-issues]

Artem Bilan opened BATCH-2732 and commented

The StepExecutionRequest cannot be deserialized properly by the Jackson.

There is just enough to add simple constructor:

private StepExecutionRequest() {
	//For Jackson deserialization
}

Not sure though that properties can continue be final, but we can realize that during testing.

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Affects: 3.0.9, 4.0.1, 4.1.0.M1

Reference URL: https://stackoverflow.com/questions/50986822/spring-integration-partition-for-sqs

Referenced from: pull request #615, and commits 7dc4b2c, 1f900ee

Backported to: 4.0.2