Hello,
I am having a really strange problem implementing a REST service. I am
trying receive the following model:
@Data @EqualsAndHashCode(callSuper=false, of={"primaryKey"})
@Entity @Table(name = "T_UNIQUE_IDENT_TYPE")
@Cache(usage=CacheConcurrencyStrategy.NONSTRICT_READ_WRITE)
@XmlRootElement(name="UniqueIdentifierType")
@XmlAccessorType(XmlAccessType.FIELD)
public class UniqueIdentifierType extends AbstractEntityWithTime
implements Serializable {
private static final long serialVersionUID = 1L;
@Id @Basic(optional = false) @Column(name = "F_TYPE_PK")
@XmlTransient
@GeneratedValue(strategy=GenerationType.SEQUENCE,generator="S_UNIQUE_IDE
NT_TYPE")
@SequenceGenerator(name="S_UNIQUE_IDENT_TYPE",sequenceName="S_UNIQUE_IDE
NT_TYPE")
private Long primaryKey;
@Column(name = "F_NAME", nullable=false, length=50)
private String typeName;
@Basic(optional = false) @Column(name = "F_CREATION_TIME")
@Temporal(TemporalType.TIMESTAMP) @XmlTransient
private Calendar creationTime;
@Basic(optional = false) @Column(name = "F_LASTMODIFY_TIME")
@Temporal(TemporalType.TIMESTAMP) @XmlTransient
private Calendar lastModifyTime;
@JoinColumn(name = "F_UNIT_PK", referencedColumnName =
"F_UNIT_PK") @ManyToOne(optional = false) @XmlTransient
private SoftwareProviderUnit softwareProviderUnit;
}
My GET REST service has the following signature:
@GET
@Path("/{name}")
public UniqueIdentifierType get(@PathParam("unitId")
final Long unitId, @PathParam("name") final String name) throws
WebApplicationException {
Whenever I do a call on this GET service I receive 500 error containing
java.lang.AssertionError: JAXBException occurred : 2 counts of
IllegalAnnotationExceptions
I was able to trace it down to the following two errors:
javassist.util.proxy.MethodHandler is an interface, and JAXB can't
handle interfaces.
this problem is related to the following location:
at javassist.util.proxy.MethodHandler
at private
javassist.util.proxy.MethodHandler
com.rp.central.model.UniqueIdentifierType_$$_javassist_21.handler
at
com.rp.central.model.UniqueIdentifierType_$$_javassist_21
javassist.util.proxy.MethodHandler does not have a no-arg default
constructor.
this problem is related to the following location:
at javassist.util.proxy.MethodHandler
at private
javassist.util.proxy.MethodHandler
com.rp.central.model.UniqueIdentifierType_$$_javassist_21.handler
at
com.rp.central.model.UniqueIdentifierType_$$_javassist_21
The weird thing is that if I change the GET method signature to return a
List I get 200 with the JSON view of the object which has all the fields
*except for the typeName field*. I am guessing that the exception is
somehow related to that field. I've tried adding explicit getters such
as
@XmlElement(name="typeName")
public String getTypeName() {
return typeName;
}
to try to force it to send the typeName, this gets the type name into
the "List" version of the GET method but still returns 500 for the non
list one. The strange thing is that I have another model which looks
exactly the same as this one and works without any problems. I've been
banging my head against this for a while now, any help will be greatly
appreciated.
Thank you.
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