NPE on initialization

[tomuszom]

@Table(name="A")
@Entity
public class A
        implements Serializable {
    private static final long serialVersionUID = 1L;

    @Id
    @Column(name = "a_id", nullable = false)
    private String aId;
}

@Table(name = "B")
@Entity
public class B
        implements Serializable {
    private static final long serialVersionUID = 1L;

    @EmbeddedId
    private B_ID id;

}

@Embeddable
public class B_ID
        implements Serializable {
    private static final long serialVersionUID = 1L;

    @ManyToOne
    @JoinColumn(name = "a_id", referencedColumnName = "a_id")
    @NotFound(action = NotFoundAction.EXCEPTION)
    private A a;

}

On calling GraphQLJpaSchemaBuilder.getObjectField(Attribute attribute, EntityType baseEntity)
getting baseEntity = null (from
private GraphQLFieldDefinition getObjectField(Attribute attribute) {
return getObjectField(attribute, null);
}
)

attribute = unknown#a(MANY_TO_ONE)

it leads to NPE

Caused by: java.lang.NullPointerException: null
at com.introproventures.graphql.jpa.query.schema.impl.GraphQLJpaSchemaBuilder.getObjectField(GraphQLJpaSchemaBuilder.java:908)
at com.introproventures.graphql.jpa.query.schema.impl.GraphQLJpaSchemaBuilder.getObjectField(GraphQLJpaSchemaBuilder.java:871)
at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193)
at java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:175)
at java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1556)
at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:482)
at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:472)
at java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:708)
at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
at java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:499)
at com.introproventures.graphql.jpa.query.schema.impl.GraphQLJpaSchemaBuilder.getEmbeddableType(GraphQLJpaSchemaBuilder.java:809)

[igdianov]

@tomuszom Thank you bug report! I will take a look at it