The following code makes DB2 return a error 301, SQL State 07006 (The value of input host variable or parameter number number cannot be used because of its data type.):

ps.setNull(payloadPosition, Types.LONGVARBINARY);

This is being used by org.jboss.messaging.core.impl.JDBCPersistenceManager (line 2382). which is called in some TCK tests. It keep trying for 25 times, getting the same error always. Meanwhile, the TCK client is expecting to receive a message back.

In my tests, the following code may replace the one which causes DB2 to fail:

pstmt.setBinaryStream(8, null, 0);