Avoid caching AnnotationIntrospector to support custom module loading

[sahil-ramagiri]

swagger-core/modules/swagger-core/src/main/java/io/swagger/v3/core/jackson/AbstractModelConverter.java

Line 46 in 24fca01

_intr = mapper.getSerializationConfig().getAnnotationIntrospector();

Issue: Currently, binding the annotation introspector to _intr in AbstractModelConverter.java causes a divergence in functionality between Swagger's annotation introspector and Jackson's annotation introspector. This could lead to inconsistencies, especially when users extend Jackson with custom modules that perform custom annotation introspection.

Solution: To address this, I propose that we avoid binding the introspector directly and instead retrieve the current annotation introspector from _mapper. This approach ensures that both Swagger and Jackson utilize the same introspector, maintaining functionality and consistency across the system.

Use Case: This change is particularly beneficial for users implementing custom annotation introspection

Reference Implementation: #4728