Is it possible to serialize a user created object with an oracle.sql.BLOB?

Is this possible? Cause I'm getting a WSDL Exception that the oracle.sql.BLOB is not a java bean. So how do I make it a java bean? What data type should I use?

here is the object that was created.
import java.io.Serializable;
public class DiagramsObj implements Serializable {
    private int     galleyDiagramId = -1;
    oracle.sql.BLOB galleyDiagramBlob = null;
    private String galleyName = null;
    /** SET THE VALUES TO THE OBJECT */
    public void setGalleyDiagramId(int newGalleyDiagramId) {
        galleyDiagramId = newGalleyDiagramId;
    public int getGalleyDiagramId() {
        return galleyDiagramId;
    public void setGalleyDiagramBlob(oracle.sql.BLOB newGalleyDiagramBlob) {
       galleyDiagramBlob = newGalleyDiagramBlob;
    public oracle.sql.BLOB getGalleyDiagramBlob() {
        return galleyDiagramBlob;
    public void setGalleyName(String newGalleyName) {
       galleyName = newGalleyName;
    public String getGalleyName() {
        return galleyName;
}

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