打开jsp文件时，出现以下问题~

500 Servlet Exception
java.lang.NullPointerException
    at _aaa._7_22d01__jsp._jspService(/aaa/7-01.jsp:26)
    at com.caucho.jsp.JavaPage.service(JavaPage.java:75)
    at com.caucho.jsp.Page.subservice(Page.java:485)
    at com.caucho.server.http.FilterChainPage.doFilter(FilterChainPage.java:182)
    at com.caucho.server.http.Invocation.service(Invocation.java:312)
    at com.caucho.server.http.CacheInvocation.service(CacheInvocation.java:135)
    at com.caucho.server.http.HttpRequest.handleRequest(HttpRequest.java:221)
    at com.caucho.server.http.HttpRequest.handleConnection(HttpRequest.java:163)
    at com.caucho.server.TcpConnection.run(TcpConnection.java:137)
    at java.lang.Thread.run(Thread.java:534)

求帮助啊~~