java.lang.ClassCastException: org.eclipse.persistence.internal.jpa.metamodel.SingularAttributeImpl cannot be cast to javax.persistence.metamodel.PluralAttribute

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    Root Cause Analysis

    1. java.lang.ClassCastException

      org.eclipse.persistence.internal.jpa.metamodel.SingularAttributeImpl cannot be cast to javax.persistence.metamodel.PluralAttribute

      at org.eclipse.persistence.internal.jpa.querydef.FromImpl.join()
    2. EclipseLink (non-OSGi)
      FromImpl.join
      1. org.eclipse.persistence.internal.jpa.querydef.FromImpl.join(FromImpl.java:485)
      1 frame
    3. Spring Data JPA
      JpaQueryCreator.create
      1. org.springframework.data.jpa.repository.query.QueryUtils.getOrCreateJoin(QueryUtils.java:596)
      2. org.springframework.data.jpa.repository.query.QueryUtils.toExpressionRecursively(QueryUtils.java:524)
      3. org.springframework.data.jpa.repository.query.JpaQueryCreator$PredicateBuilder.getTypedPath(JpaQueryCreator.java:332)
      4. org.springframework.data.jpa.repository.query.JpaQueryCreator$PredicateBuilder.build(JpaQueryCreator.java:275)
      5. org.springframework.data.jpa.repository.query.JpaQueryCreator.toPredicate(JpaQueryCreator.java:180)
      6. org.springframework.data.jpa.repository.query.JpaQueryCreator.create(JpaQueryCreator.java:109)
      7. org.springframework.data.jpa.repository.query.JpaQueryCreator.create(JpaQueryCreator.java:49)
      7 frames
    4. Spring Data Core
      AbstractQueryCreator.createQuery
      1. org.springframework.data.repository.query.parser.AbstractQueryCreator.createCriteria(AbstractQueryCreator.java:109)
      2. org.springframework.data.repository.query.parser.AbstractQueryCreator.createQuery(AbstractQueryCreator.java:88)
      3. org.springframework.data.repository.query.parser.AbstractQueryCreator.createQuery(AbstractQueryCreator.java:73)
      3 frames
    5. Spring Data JPA
      JpaQueryLookupStrategy$CreateIfNotFoundQueryLookupStrategy.resolveQuery
      1. org.springframework.data.jpa.repository.query.PartTreeJpaQuery$QueryPreparer.<init>(PartTreeJpaQuery.java:118)
      2. org.springframework.data.jpa.repository.query.PartTreeJpaQuery$CountQueryPreparer.<init>(PartTreeJpaQuery.java:241)
      3. org.springframework.data.jpa.repository.query.PartTreeJpaQuery.<init>(PartTreeJpaQuery.java:68)
      4. org.springframework.data.jpa.repository.query.JpaQueryLookupStrategy$CreateQueryLookupStrategy.resolveQuery(JpaQueryLookupStrategy.java:103)
      5. org.springframework.data.jpa.repository.query.JpaQueryLookupStrategy$CreateIfNotFoundQueryLookupStrategy.resolveQuery(JpaQueryLookupStrategy.java:214)
      5 frames