Problems with large objects

Hi,

I am using the new jdbc6.5-1.2 to store the large objects. 
The code is the following:   LargeObjectManager lom =           
((postgresql.Connection)con).getLargeObjectAPI();           System.out.println("creating blob to store image...");
oid1= lom.create();           LargeObject blob = lom.open(oid1);   blob.write(buf,0,buf.length);   blob.close();
 

But when it execute the oid1=lom.create(), it gave me this error message:
FastPath protocol error: Z

The old jdbc6.5-1.2 works fine for this program. 
-- Lan


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