Description Frank Schwarz 2010-10-26 16:28:42 EDT

Build Identifier: Trunk

@Entity
public class DesignPattern {
  @ManyToMany(fetch = FetchType.EAGER, cascade = CascadeType.ALL)
  private Map<ProgrammingLanguage, CodeExample> codeExamples = new HashMap<ProgrammingLanguage, CodeExample>();
}


@Entity
public class CodeExample extends BaseEntity { }


@Entity @Inheritance(strategy = InheritanceType.TABLE_PER_CLASS)
public abstract class BaseEntity { }



A simple query "SELECT x FROM DesignPattern x" causes:

[EL Warning]: Exception [EclipseLink-6157] (Eclipse Persistence Services - @VERSION@.@QUALIFIER@): org.eclipse.persistence.exceptions.QueryException
Exception Description: Element [user.test.model.CodeExample@879860] is being added to a map without a key.  This generally means the database does not hold a key that is expected.
Query: ReadAllQuery(name="codeExamples" referenceClass=CodeExample sql="SELECT t1.ID, t1.CONTENT, t0.codeExamples_KEY FROM DESIGNPATTERN_CODEEXAMPLE t0, CODEEXAMPLE t1 WHERE ((t0.DesignPattern_ID = ?) AND (t1.ID = t0.codeExamples_ID))")


Reproducible: Always