RSQLJPASupport.toSpecification(filter) erroneously reports No entity manager bean found in application context

[Nephthys76]

I'm new to using this library, and it looks like it would fit my needs perfectly, but I've spent 3 days trying to get it to work and have been thus far unsuccessful.

As long as I don't send a filter and I manually create my Specification, everything works fine using the findAll(spec, pageable) method. But once I send a filter from my controller endpoint, the translation of the RSQL string into a Specification produces an error.

I have tried many different ways to ensure the RSQLVisitorBase class is getting the proper EntityManager, which is auto-configured with JPA, but nothing has worked. I know my Entity and my EntityManager are good, because I am able to do all CRUD actions on my entity and it's reflected in my database (postgres). This code has been in production for almost 2 years. I am only now trying to implement server-side filtering (and paging).

Here is some background info:

• I'm using Spring Boot 3, version 3.3.5
• I'm using rsql-jpa-spring-boot-starter, version 6.0.32
• During startup, I am printing out all elements in my EntityManager, and I see all expected elements, including the element for which I'm trying to create a Specification from my RSQL string
• This is the command that is causing the error: var spec: Specification<Analysis> = RSQLJPASupport.toSpecification(filter) (I am coding in Kotlin, which compiles into Java and is compatible with all Java libraries)
• This is my error (exerpts only):

ERROR i.g.p.r.RSQLVisitorBase:211 [ReqGuid:] - [class com.ilmn.kratos.database.domain.Analysis] not found in EntityManager: []
...
org.springframework.dao.InvalidDataAccessApiUsageException: No entity manager bean found in application context
...
Caused by: java.lang.IllegalStateException: No entity manager bean found in application context
	at io.github.perplexhub.rsql.RSQLVisitorBase.getManagedType(RSQLVisitorBase.java:212)
	at io.github.perplexhub.rsql.RSQLJPAPredicateConverter.findPropertyPathInternal(RSQLJPAPredicateConverter.java:81)

I have tried manually setting my entity manager in RSQLVisitorBase context in several different ways. I have tried manually exposing my entity manager as a Bean. I have also tried manually invoking the auto-configuration of RSQLJPASupport in hopes that it would pick up my correct EntityManager, but I still get the same error.

This method, called from my Application (main) class proves that my entity is IN my spring context:

    @PostConstruct
    fun logEntities() {
        val entities = entityManager.metamodel.entities.map { it.javaType.name }
        println("Entities in EntityManager: $entities")
    }

seen in my log (exerpt):

Entities in EntityManager: [..., com.ilmn.kratos.database.domain.Analysis, ...]

Here is the declaration of my Repository:

@Repository
interface AnalysisCrudRepository: CrudRepository<Analysis, String>, JpaSpecificationExecutor<Analysis> {

Here is my RSQL that I'm trying to convert to a Specification:

name=like=*Adv*

Thanks in advance for any help. This library could potentially save me lots of time, as I need to implement server-side paging and filtering for several entities.

Tonya