自己写了个系统排程..结果一直抛异常..

Question

java.lang.NullPointerException
        at java.lang.Class.forName0(Native Method)
        at java.lang.Class.forName(Class.java:242)
        at com.caucho.loader.DynamicClassLoader.loadClass(DynamicClassLoader.java:838)
        at com.caucho.loader.enhancer.EnhancingClassLoader.loadClass(EnhancingClassLoader.java:306)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
        at _jsp._jsp._sys._zf_0proce__jsp._jspService(_zf_0proce__jsp.java:39)
        at com.caucho.jsp.JavaPage.service(JavaPage.java:61)
        at com.caucho.jsp.Page.pageservice(Page.java:557)
        at com.caucho.server.dispatch.PageFilterChain.doFilter(PageFilterChain.java:141)
        at com.emis.http.emisDbFilter.doFilter(emisDbFilter.java:22)
        at com.caucho.server.dispatch.FilterFilterChain.doFilter(FilterFilterChain.java:70)
        at com.caucho.server.webapp.WebAppFilterChain.doFilter(WebAppFilterChain.java:163)
        at com.caucho.server.dispatch.ServletInvocation.service(ServletInvocation.java:207)
        at com.caucho.server.http.HttpRequest.handleRequest(HttpRequest.java:249)
        at com.caucho.server.port.TcpConnection.run(TcpConnection.java:327)
        at com.caucho.util.ThreadPool.runTasks(ThreadPool.java:450)
        at com.caucho.util.ThreadPool.run(ThreadPool.java:394)
        at java.lang.Thread.run(Thread.java:595)
求高手解答

Answer 1

你的jsp有问题
java.lang.NullPointerException
at _jsp._jsp._sys._zf_0proce__jsp._jspService(_zf_0proce__jsp.java:39)找到tomcat\work\Catalina\localhost\你的工程.....下面有个_zf_0proce__jsp.java，你打开看哪里出现空指针，然后对应你的0proce.jsp排查。