Hibernate select query

Question

I'm using the below query to fetch details from 2 tables as mentioned and then store the result in a list

Query selectEntry = em.createQuery("select b.affStyle,b.actualAffService " +
    "from SdHeaders a, SdAffectedServices b " +
    "where a.id = b.id AND a.sdClass = 'NET' AND b.actualAffService IS NOT NULL " +
    "AND b.itemType = :itemType " +
    "group by b.affStyle, b.actualAffService");                     

selectEntry.setParameter("itemType",ob.getItemType());
result=selectEntry.getResultList();

While executing this, I'm getting the below error and the list also should be populated with 2 values but it's not.

Subquery result[[Ljava.lang.Object;@2b4a90f0]
Result string[[Ljava.lang.Object;@2b4a90f0]
[Ljava.lang.Object;@2b4a90f0
java.lang.IndexOutOfBoundsException: Index: 1, Size: 1
    at java.util.ArrayList.rangeCheck(ArrayList.java:657)
    at java.util.ArrayList.get(ArrayList.java:433)

When I run the query in SQL developer it gives me the proper result. Can someone please help?

Answer 1

selectEntry.setParameter("itemType",ob.getItemType());

This might be probable cause. ob.getItemType() data type and itemType data type in the DB are not matching. Can you correct it and retry?