Change default of MapperFeature.DEFAULT_VIEW_INCLUSION to false in 3.0

[sdeleuze]

In Jackson 2.x, MapperFeature.DEFAULT_VIEW_INCLUSION is set to true by default, but almost all users set it to false because the most common use case is to only keep properties or fields annotated with @JsonView.

In Spring Framework and Spring Boot, we already modify this default value, but maybe the default setting could be modify in Jackson 3.x in order to avoid confusing users?

[cowtowncoder]

Thank you for suggesting this: I hope to focus bit more on 3.x planning after getting 2.9 finalized.
It's great to have these entries as a starting point. Next step would probably be to either create a new repo, or to use a wiki of existing repos (maybe jackson-docs or jackson or just jackson-databind); either way, having a collaborative sharing environment for collecting ideas and plans.

[cowtowncoder]

Being discussed here:

• Jackson 3.0.0 default for `MapperFeature.DEFAULT_VIEW_INCLUSION` jackson-future-ideas#75

based on which change will either made, or not.

[cowtowncoder]

Discussion closed: will proceed with this change.

[JooHyukKim]

@cowtowncoder let's add below to JSTEP-2. Leaving this here because, Currently laptop is blocked to edit anything from github.com. Will comeback and pick this up in 2 days 🥲.

* `DEFAULT_VIEW_INCLUSION`: default to `false` (because the most common use case is to only keep properties or fields annotated with `@JsonView`.)
    * [databind#1484](https://github.com/FasterXML/jackson-databind/issues/1484)

[cowtowncoder]

@JooHyukKim Will add once it gets completed -- having some problems with PR (#4885).

Basically PR initially had 12 fails; could fix/work-around 7 by configuring ObjectMapper for tests, but while all could in theory be patched, there does seem to be something odd in "not included by default" mode, changing behavior when there should be no change.
Some of failures happen in 2.19 as well but not all -- and none of these make immediate sense.

[JooHyukKim]

Right, I pulled and checked. Below tests are failing.

[ERROR] Failures: 
[ERROR]   CollectionDeserTest.testArrayIndexForExceptions:298 expected: <keys> but was: <>
[ERROR]   TestExceptionHandlingWithDefaultDeserialization.testShouldThrowExceptionWithPathReference:58 expected: <tools.jackson.databind.exc.TestExceptionHandlingWithDefaultDeserialization$Foo["bar"]->tools.jackson.databind.exc.TestExceptionHandlingWithDefaultDeserialization$Bar["baz"]> but was: <tools.jackson.databind.exc.TestExceptionHandlingWithDefaultDeserialization$Foo["baz"]->tools.jackson.databind.exc.TestExceptionHandlingWithDefaultDeserialization$Bar["baz"]>
[ERROR]   TypedArraySerTest.testListWithPolymorphic:87 expected: <{"beans":[{"@type":"bean","x":0}]}> but was: <{"beans":[{"@type":"bean"}]}>
[ERROR] Errors: 
[ERROR]   CurrentValueDeser4184Test.testCurrentValue4184EmptyPojo:92 » MismatchedInput currentValue() of wrong type, not User but: tools.jackson.databind.ser.filter.CurrentValueDeser4184Test$Role
 at [Source: (String)"{"role": {}, "type": {"value":1}}"; line: 1, column: 22] (through reference chain: tools.jackson.databind.ser.filter.CurrentValueDeser4184Test$User["type"])
[ERROR]   TestPOJOAsArray.testUnknownExtraProp:309 » MismatchedInput Unexpected token (`JsonToken.VALUE_FALSE`), expected `JsonToken.END_ARRAY`: Unexpected JSON values; expected at most 4 properties (in JSON Array)
 at [Source: (String)"{"value":[true,"Foobar",42,13, false]}"; line: 1, column: 32] (through reference chain: tools.jackson.databind.struct.TestPOJOAsArray$PojoAsArrayWrapper[""])

[cowtowncoder]

Down to just 2 failures:

 Error:  Failures: 
Error:    CollectionDeserTest.testArrayIndexForExceptions:298 expected: <keys> but was: <>
Error:    TestExceptionHandlingWithDefaultDeserialization.testShouldThrowExceptionWithPathReference:58 expected: <tools.jackson.databind.exc.TestExceptionHandlingWithDefaultDeserialization$Foo["bar"]->tools.jackson.databind.exc.TestExceptionHandlingWithDefaultDeserialization$Bar["baz"]> but was: <tools.jackson.databind.exc.TestExceptionHandlingWithDefaultDeserialization$Foo["baz"]->tools.jackson.databind.exc.TestExceptionHandlingWithDefaultDeserialization$Bar["baz"]>
[INFO] 
Error:  Tests run: 3484, Failures: 2, Errors: 0, Skipped: 0