Hi, all: I try to use DatabaseMetaData to get all tables and views from a Oracle database. But exception is thrown at the red line. You can see that I look up a remote DataSource and get connection from the data source. But if I use DriverManager.getConnection(url, user, pwd) way to get connection. This issue does not exist. I can get all the tables and views successfully... Any help from you will be much appreciated! public class Test { | | public static void main(String[] args) throws Exception { | | Properties props = new Properties(); | | props.put(Context.PROVIDER_URL, "jnp://10.111.3.161:1099"); | | props.put(Context.INITIAL_CONTEXT_FACTORY, "org.jnp.interfaces.NamingContextFactory"); | | Context ctx = new InitialContext(props); | | DataSource ds = (DataSource)ctx.lookup("OracleDS"); | | Connection conn = ds.getConnection(); | | DatabaseMetaData dbmd = conn.getMetaData(); | | ResultSet rs = dbmd.getTables(null, "%", "%", new String[] { "TABLE", "VIEW" }); | | } | | } Exception: Exception in thread "main" java.lang.ClassCastException: $Proxy3 at $Proxy2.getTables(Unknown Source) at Test.main(Test.java:62) View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4251946#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...