Question

I am getting a java.lang.IllegalArgumentException similar to the link given below.To solve it I tried to change the field type from Integer to Long. But still I am getting:

Caused by: java.lang.IllegalArgumentException: Parameter value [5] was not matching type [com.buddhiedge.server.entity.StudyplanCategory]

StudyplanCategory is the entity class.

The problem is similar to the one in the below link.
Hibernate – Parameter value [2011] was not matching type [java.lang.Integer]. How to solve?
My entity Class is:

@JsonIgnoreProperties({ "studyplanCategoryList", "dropboxzipfile",
        "parentCategory", "createdDate", "updatedDate" })
@JsonPropertyOrder({ "id", "name", "status", "sptTutorialsList" })
@Entity
@Table(name = "studyplan_category", catalog = "buddhiedgeserver_db", schema = "", uniqueConstraints = { @UniqueConstraint(columnNames = { "dropboxzipfile" }) })
@NamedQueries({

        @NamedQuery(name = "StudyplanCategory.findSubStudyPlanById", query = "SELECT s FROM StudyplanCategory s WHERE s.parentCategory=:parentCategory order by updatedDate DESC")})

    public class StudyplanCategory implements Serializable {
        private static final long serialVersionUID = 1L;
        @Id
        @GeneratedValue(strategy = GenerationType.IDENTITY)
        @Basic(optional = false)
        @NotNull
        @Column(name = "id", nullable = false)
        private Long id;

    }

Answer 1

It seems you are passing 5 as parameter to the query. If you want to pass an ID rather than an entity, change the query to:

WHERE s.parentCategory.id=:parentCategoryId