java.lang.UnsupportedOperationException: Blob may not be manipulated from creating session
   at org.hibernate.lob.BlobImpl.excep(BlobImpl.java:104)
   at org.hibernate.lob.BlobImpl.getBytes(BlobImpl.java:50)
   at org.hibernate.lob.SerializableBlob.getBytes(SerializableBlob.java:35)
   at com.testproject.model.BinaryBlobType.deepCopy(BinaryBlobType.java:60)
   at org.hibernate.type.CustomType.deepCopy(CustomType.java:179)
   at org.hibernate.type.TypeFactory.deepCopy(TypeFactory.java:329)
   at org.hibernate.event.def.AbstractSaveEventListener.performSaveOrReplicate(AbstractSaveEventListener.java:274)
   at org.hibernate.event.def.AbstractSaveEventListener.performSave(AbstractSaveEventListener.java:180)
   at org.hibernate.event.def.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:108)
   at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.saveWithGeneratedOrRequestedId(DefaultSaveOrUpdateEventListener.java:186)
   at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.entityIsTransient(DefaultSaveOrUpdateEventListener.java:175)
   at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.performSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:98)
   at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.onSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:70)
   at org.hibernate.impl.SessionImpl.fireSaveOrUpdate(SessionImpl.java:507)
   at org.hibernate.impl.SessionImpl.saveOrUpdate(SessionImpl.java:499)
   at org.hibernate.impl.SessionImpl.saveOrUpdate(SessionImpl.java:495)

public class BinaryBlobType implements UserType
{
  public int[] sqlTypes()
  {
    return new int[] { Types.BLOB };
  }

  public Class returnedClass()
  {
    return byte[].class;
  }

  public boolean equals(Object x, Object y)
  {
    return (x == y)
      || (x != null
        && y != null
        && java.util.Arrays.equals((byte[]) x, (byte[]) y));
  }

  public Object nullSafeGet(ResultSet rs, String[] names, Object owner)
  throws HibernateException, SQLException
  {
    Blob blob = rs.getBlob(names[0]);
    return blob.getBytes(1, (int) blob.length());
  }

  public void nullSafeSet(PreparedStatement st, Object value, int index)
  throws HibernateException, SQLException
  {
    st.setBlob(index, Hibernate.createBlob((byte[]) value));
  }

  public Object deepCopy(Object value)
  {
    if (value == null) return null;

    byte[] result;
   try {
      SerializableBlob blog = (SerializableBlob) value;
      long l = blog.length();
      
      byte[] bytes = blog.getBytes(0, (int)l);
      result = new byte[bytes.length];
      System.arraycopy(bytes, 0, result, 0, bytes.length);
   } catch (SQLException e) {
      // TODO Auto-generated catch block
      e.printStackTrace();
      return null;
      
   }

    return result;
  }

  public boolean isMutable()
  {
    return true;
  }

public Object assemble(Serializable component, Object arg1) throws HibernateException {
   // TODO Auto-generated method stub
   return component;
}

public Serializable disassemble(Object value) throws HibernateException {
   // TODO Auto-generated method stub
   return (Serializable) value;
}

public int hashCode(Object arg0) throws HibernateException {
   // TODO Auto-generated method stub
   return arg0.hashCode();
}

public Object replace(Object arg0, Object arg1, Object arg2) throws HibernateException {
   // TODO Auto-generated method stub
   return arg0;
}

}