[Issue 4347] ClientAPI ReaderBuilder.loadConf() not working

[ambition119]

(If this PR fixes a github issue, please add Fixes #<xyz>.)

Fixes #4347

Motivation

MessageId is a interface, not support mapper.readValue() from conf.set("startMessageId", new MessageIdImpl()) .
If support, modify code to mapper.forType(MessageIdImpl.class) or use jackson annotation

@JsonTypeInfo(
  use = JsonTypeInfo.Id, 
  include = JsonTypeInfo.As.PROPERTY, 
  property = "type")
@JsonSubTypes({ 
  @Type(value = MessageIdImpl.class), 
  @Type(value = BatchMessageIdImpl.class) ,
  @Type(value = TopicMessageIdImpl.class) 
})
public interface MessageId

so I thank use @JsonIgnore then builder.startMessageId() is the easiest solution.

Modifications

1. @JsonIgnore startMessageId
2. conf.setStartMessageId()

Verifying this change

• [✔️ ] Make sure that the change passes the CI checks.

(Please pick either of the following options)

This change is a trivial rework / code cleanup without any test coverage.

(or)

This change is already covered by existing tests, such as (please describe tests).

(or)

This change added tests and can be verified as follows:

(example:)

• Added integration tests for end-to-end deployment with large payloads (10MB)
• Extended integration test for recovery after broker failure

Does this pull request potentially affect one of the following parts:

If yes was chosen, please highlight the changes

• Dependencies (does it add or upgrade a dependency): (yes / no)
• The public API: (yes / no)
• The schema: (yes / no / don't know)
• The default values of configurations: (yes / no)
• The wire protocol: (yes / no)
• The rest endpoints: (yes / no)
• The admin cli options: (yes / no)
• Anything that affects deployment: (yes / no / don't know)

Documentation

• Does this pull request introduce a new feature? (yes / no)
• If yes, how is the feature documented? (not applicable / docs / JavaDocs / not documented)
• If a feature is not applicable for documentation, explain why?
• If a feature is not documented yet in this PR, please create a followup issue for adding the documentation

[sijie]

@ambition119 can you write a unit test to reproduce this issue? so that we can confirm that your pull request fixes it.

[ambition119]

@ambition119 can you write a unit test to reproduce this issue? so that we can confirm that your pull request fixes it.

done, this solve like https://github.com/apache/pulsar/blob/master/pulsar-client/src/main/java/org/apache/pulsar/client/impl/conf/ConsumerConfigurationData.java#L62

[sijie]

@ambition119 can you rebase your pull request to latest master to fix the integration tests error?

[ambition119]

run java8 tests

org.apache.pulsar.functions.worker.PulsarFunctionE2ESecurityTest.testAuthorizationWithAnonymousUser

[sijie]

run java8 tests