java - DBUnit and Oracle JDBC (ClassCastException) -

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i want dump test db raw xml file using dbunit , i'm getting classcastexception. below code:

new flatxmlwriter(new fileoutputstream("expected_ds.xml")).         write(getdbunitconnection().createdataset(new string[]{"tab1","tab2"}));

and result :

     java.lang.classcastexception: org.apache.commons.dbcp.delegatingresultset cannot cast oracle.jdbc.oracleresultset

i'm using ojdbc14-10.2.0.3.0.jar, commons-dbcp-1.2.2.jar , dbunit-2.4.7.jar.

is bug in oracle jdbc ? in ojdbc driver have found sth that:

/**  *   * todo unittests missing  * @author phil barr  * @author last changed by: $author: jbhurst $  * @version $revision: 1072 $ $date: 2009-10-12 19:46:45 +0200 (lun, 12 ott 2009) $  * @since 2.4.0  */ public class oraclexmltypedatatype extends blobdatatype {      public object getsqlvalue(int column, resultset resultset) throws sqlexception,     typecastexception     {         byte[] data = new byte[0];         oracleresultset oracleresultset = (oracleresultset) resultset;         ... other stuf ...     } ... }

it looks oracle issue , javadoc seems not tested @ all. has had similar problem?

the oracle jdbc driver not @ fault here.

it looks dbunit assumes can cast resultset oracle-specific type. that's bad idea in first place (but can't avoided in cases).

since you're using connection pool, dbunit doesn't access oracle-specific object, wrapper provided pool instead.

either stop using pool tests or underlying connection pooled connection , pass dbunit (this risks dbunit closes physical connection, pool tries avoid providing wrapper).


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