jbuilder9.0+weblogic8.1+oracle8i问题

我在使用jbuilder9.0开发JSP应用，运行时采用weblogic8.1出现如下提示：
<2004-1-17 上午09时00分55秒 CST> <Info> <WebLogicServer> <BEA-000377> <Starting WebLogic Server with Java HotSpot(TM) Client VM Version 1.4.1_05-b01 from Sun Microsystems Inc.>
<2004-1-17 上午09时00分56秒 CST> <Info> <Configuration Management> <BEA-150016> <This server is being started as the administration server.>
<2004-1-17 上午09时00分56秒 CST> <Info> <Management> <BEA-141107> <Version: WebLogic Server 8.1 SP2 Fri Dec 5 15:01:51 PST 2003 316284
WebLogic XMLX Module 8.1 SP2 Fri Dec 5 15:01:51 PST 2003 316284 >
<2004-1-17 上午09时00分56秒 CST> <Notice> <Management> <BEA-140005> <Loading domain configuration from configuration repository at D:\bea\user_projects\domains\mydomain\.\config.xml.>
<2004-1-17 上午09时01分00秒 CST> <Notice> <Log Management> <BEA-170019> <The server log file D:\bea\user_projects\domains\mydomain\myserver\myserver.log is opened. All server side log events will be written to this file.>
<2004-1-17 上午09时01分03秒 CST> <Notice> <Security> <BEA-090082> <Security initializing using security realm myrealm.>
<2004-1-17 上午09时01分03秒 CST> <Notice> <WebLogicServer> <BEA-000327> <Starting WebLogic Admin Server "myserver" for domain "mydomain">
<2004-1-17 上午09时01分07秒 CST> <Warning> <Management> <BEA-149317> <Application JBuilder_WebRun is configured with a deprecated deployment protocol and will be deployed as such.>
<2004-1-17 上午09时01分08秒 CST> <Warning> <HTTP> <BEA-101296> <Unable to load the default compiler class "com.sun.tools.javac.Main". Using the default javac compiler to compile JSPs.>
<2004-1-17 上午09时01分13秒 CST> <Error> <Socket> <BEA-000438> <Unable to load performance pack. Using Java I/O instead. Please ensure that wlntio.dll is in: 'D:D:/bea/weblogic81/server/bin'
>
<2004-1-17 上午09时01分13秒 CST> <Warning> <WebLogicServer> <BEA-000372> <HostName: 0.0.0.0, maps to multiple IP addresses:172.16.43.22,10.36.6.22>
<2004-1-17 上午09时01分13秒 CST> <Notice> <WebLogicServer> <BEA-000355> <Thread "ListenThread.Default" listening on port 7003, ip address *.*>
<2004-1-17 上午09时01分13秒 CST> <Notice> <WebLogicServer> <BEA-000331> <Started WebLogic Admin Server "myserver" for domain "mydomain" running in Development Mode>
<2004-1-17 上午09时01分13秒 CST> <Notice> <WebLogicServer> <BEA-000360> <Server started in RUNNING mode>
在WEB显示时的提示是JSP页面没有找到，请问如何解决？