我连oracle对的，可是连sybase就报错误，请大家帮我看看
主要是实现新的ResultSet

package com.servlet;
import java.sql.*;
import javax.sql.*;
import javax.naming.*;
import java.util.*;
import javax.rmi.*;
import com.bean.Pageable;
import com.bean.PageableResultSet2;
/* 其中 public interface Pageable extends java.sql.ResultSet
public class PageableResultSet2 implements Pageable
代码就不贴了
*/

public class testconn {

public static void main(String[] args) {

DataSource ds = null ;
Context ctx = null;
Connection myConn = null;
try {

ctx = getInitialContext();
ds = (javax.sql.DataSource)ctx.lookup("shopDS");// sybase
//ds = (javax.sql.DataSource)ctx.lookup ("testTxDataSource"); //oracle
}
catch (Exception E){
System.out.println("Init Error :"+E);
}
PreparedStatement pstmt = null;
Statement stmt = null ;
Pageable myResult = null ;

try {
myConn = ds.getConnection();
pstmt = myConn.prepareStatement("Select * from tcategory",ResultSet.TYPE_SCROLL_INSENSITIVE,ResultSet.CONCUR_UPDATABLE);
myResult = new PageableResultSet2(pstmt.executeQuery());
myResult.setPageSize(3);//每页2个记录
myResult.gotoPage(3);//跳转到第2页

/* while (myResult.next()){

System.out.println("CateName:" + myResult.getString("CateName"));

}*/
for(int i=0; i<myResult.getPageRowsCount(); i++){//循环处理
System.out.println("CateName : "+myResult.getString("CateName"));

}

myResult.close();
}
catch (SQLException e){
System.out.println("Error code = "+ e.getErrorCode());
System.out.println("Error message = "+ e.getMessage());
}
finally {
try {

if (pstmt != null){
pstmt.close();
}
if(myConn != null) {
myConn.close();
}
}
catch (SQLException e){
System.out.println("Error code = "+ e.getErrorCode());
System.out.println("Error message = "+ e.getMessage());
}
}
}

private static Context getInitialContext() throws Exception{

String url = "t3://10.10.3.62:7001";
//String user = "sa";
//String password = null;
Properties properties = null;
try {
properties = new Properties();
properties.put(Context.INITIAL_CONTEXT_FACTORY,"weblogic.jndi.WLInitialContextFactory");
properties.put(Context.PROVIDER_URL,url);
//if(user != null){
// properties.put(Context.SECURITY_PRINCIPAL,user);
// properties.put(Context.SECURITY_CREDENTIALS, password == null ? "":password);
// }
return new InitialContext(properties);
}
catch (Exception e){
throw e;
}


}

}


我连oracle对的，可是连sybase就报以下错误，请大家帮我看看




Error code = 0

Error message = weblogic.rmi.extensions.RemoteRuntimeException: Unexpected Exception - with nested exception:

[java.rmi.ServerError: A error occurred the server; nested exception is:
java.lang.AbstractMethodError

Start server side stack trace:
java.rmi.ServerError: A error occurred the server; nested exception is:
java.lang.AbstractMethodError

at weblogic.rmi.internal.BasicServerRef.handleThrowable(BasicServerRef.java:565)

at weblogic.rmi.internal.BasicServerRef.postInvoke(BasicServerRef.java:533)

at weblogic.rmi.internal.BasicServerRef.handleRequest(BasicServerRef.java:411)

at weblogic.rmi.internal.BasicExecuteRequest.execute(BasicExecuteRequest.java:30)

at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:251)

at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:219)

Caused by: java.lang.AbstractMethodError

at weblogic.jdbc.common.internal.ConnectionEnv.getStatementHolderForCachedPrepared(ConnectionEnv.java:482)

at weblogic.jdbc.pool.Connection.prepareStatement(Connection.java:487)

at weblogic.jdbc.rmi.internal.ConnectionImpl.prepareStatement(ConnectionImpl.java:431)

at weblogic.jdbc.rmi.internal.ConnectionImpl_WLSkel.invoke(Unknown Source)

at weblogic.rmi.internal.BasicServerRef.invoke(BasicServerRef.java:455)

at weblogic.rmi.internal.BasicServerRef$1.run(BasicServerRef.java:396)

at weblogic.security.service.SecurityServiceManager.runAs(SecurityServiceManager.java:726)

at weblogic.rmi.internal.BasicServerRef.handleRequest(BasicServerRef.java:391)

... 3 more

End server side stack trace
; nested exception is:
java.lang.AbstractMethodError:
Start server side stack trace:
java.lang.AbstractMethodError

at weblogic.jdbc.common.internal.ConnectionEnv.getStatementHolderForCachedPrepared(ConnectionEnv.java:482)

at weblogic.jdbc.pool.Connection.prepareStatement(Connection.java:487)

at weblogic.jdbc.rmi.internal.ConnectionImpl.prepareStatement(ConnectionImpl.java:431)

at weblogic.jdbc.rmi.internal.ConnectionImpl_WLSkel.invoke(Unknown Source)

at weblogic.rmi.internal.BasicServerRef.invoke(BasicServerRef.java:455)

at weblogic.rmi.internal.BasicServerRef$1.run(BasicServerRef.java:396)

at weblogic.security.service.SecurityServiceManager.runAs(SecurityServiceManager.java:726)

at weblogic.rmi.internal.BasicServerRef.handleRequest(BasicServerRef.java:391)

at weblogic.rmi.internal.BasicExecuteRequest.execute(BasicExecuteRequest.java:30)

at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:251)

at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:219)

End server side stack trace
]