急！急！weblogic8.1的jsp问题！

<2008-10-15 上午10时46分36秒 CST> <Error> <HTTP> <BEA-101019> <[ServletContext(id=11203538,name=ncbuilding,context-path=/ncbuilding)] Servlet failed with IOException
weblogic.servlet.jsp.CompilationException: Compilation of D:\tools\bea\user_projects\domains\mydomain\myserver\.wlnotdelete\extract\myserver__appsdir_ncbuilding_dir_ncbuilding\jsp_servlet\_mappage\_iframe\__cxjg.java failed.
D:\tools\bea\user_projects\domains\mydomain\myserver\.wlnotdelete\extract\myserver__appsdir_ncbuilding_dir_ncbuilding\jsp_servlet\_mappage\_iframe\__cxjg.java:450: cannot resolve symbol
symbol  : method getServletContext ()
location: class jsp_servlet._mappage._iframe.__cxjg
                    String pathtype=getServletContext().getRealPath("/"); //[ /mappage/iframe/cxjg.jsp; Line: 422]
                                    ^
D:\tools\bea\user_projects\domains\mydomain\myserver\.wlnotdelete\extract\myserver__appsdir_ncbuilding_dir_ncbuilding\jsp_servlet\_mappage\_iframe\__cxjg.java:463: cannot resolve symbol
symbol  : method getServletContext ()
location: class jsp_servlet._mappage._iframe.__cxjg
                    String pathtype=getServletContext().getRealPath("/"); //[ /mappage/iframe/cxjg.jsp; Line: 435]
                                    ^
D:\tools\bea\user_projects\domains\mydomain\myserver\.wlnotdelete\extract\myserver__appsdir_ncbuilding_dir_ncbuilding\jsp_servlet\_mappage\_iframe\__cxjg.java:475: cannot resolve symbol
symbol  : method getServletContext ()
location: class jsp_servlet._mappage._iframe.__cxjg
                    String pathtype=getServletContext().getRealPath("/"); //[ /mappage/iframe/cxjg.jsp; Line: 447]
                                    ^
3 errors at weblogic.servlet.jsp.JspStub.compilePage(JspStub.java:449)
at weblogic.servlet.jsp.JspStub.prepareServlet(JspStub.java:223)
at weblogic.servlet.jsp.JspStub.prepareServlet(JspStub.java:172)
at weblogic.servlet.internal.ServletStubImpl.getServlet(ServletStubImpl.java:518)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:362)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:446)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:305)
at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:6350)
at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:317)
at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:118)
at weblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppServletContext.java:3635)
at weblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestImpl.java:2585)
at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:197)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:170)
Caused by: java.io.IOException: Compiler failed executable.exec
at weblogic.utils.compiler.CompilerInvoker.compileMaybeExit(CompilerInvoker.java:470)
at weblogic.utils.compiler.CompilerInvoker.compile(CompilerInvoker.java:329)
at weblogic.utils.compiler.CompilerInvoker.compile(CompilerInvoker.java:337)
at weblogic.utils.compiler.CompilerInvoker.compile(CompilerInvoker.java:322)
at weblogic.servlet.jsp.JspStub.compilePage(JspStub.java:422)
... 13 more
> 开发JDK1.4.2,weblogic8.1也用的JDK1.4.2，希望各位大大帮帮忙啊