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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