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T4CNumberAccessor randomly reports "Invalid column type" and fails

450301Aug 16 2005 — edited Aug 18 2005

Hi,
currently porting an application from JBoss to WebLogic 8.1.4.
I get strange exceptions like

[...] 
Caused by: java.sql.SQLException: Ungültiger Spaltentyp: getTimestamp not implemented for class oracle.jdbc.driver.T4CNumberAccessor 
at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:125) 
at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:162) 
at oracle.jdbc.driver.Accessor.unimpl(Accessor.java:387) 
at oracle.jdbc.driver.Accessor.getTimestamp(Accessor.java:798) 
at oracle.jdbc.driver.OracleResultSetImpl.getTimestamp(OracleResultSetImpl.java:731) 
at weblogic.jdbc.wrapper.ResultSet_oracle_jdbc_driver_OracleResultSetImpl.getTimestamp(Unknown Source) 
at com.essencio.eventlog.server.DatabaseAccess.getPrimitiveResultValue(DatabaseAccess.java:1674) 
at com.essencio.eventlog.server.NQPrimitiveRunner.interpretResultSet(NQPrimitiveRunner.java:41) 
at com.essencio.eventlog.server.NQBaseRunner.execute(NQBaseRunner.java:192) ... 
31 more

("Ungültiger Spaltentyp" means "Invalid column type").

They happen in test cases when I have the statement cache type of the connection pool configured to LRU.
I am using the Oracle JDBC Driver version - 10.1.0.2.0.

What is going wrong here and how can I get around it?

Best regards from Black Forrest, Germany,
Mattin

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Locked on Sep 15 2005
Added on Aug 16 2005
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