06-17 17:40:42[ERROR]/user/pwd/4-000000

java.lang.NullPointerException

        at com.eova.common.base.BaseController.getSelectValue(BaseController.jav

a:41)

        at com.eova.user.UserController.pwd(UserController.java:25)

        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.

java:62)

        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces

sorImpl.java:43)

        at java.lang.reflect.Method.invoke(Method.java:498)

        at com.jfinal.aop.Invocation.invoke(Invocation.java:73)

        at com.eova.interceptor.AuthInterceptor.intercept(AuthInterceptor.java:7

4)

        at com.jfinal.aop.Invocation.invoke(Invocation.java:67)

        at com.eova.interceptor.LoginInterceptor.intercept(LoginInterceptor.java

:69)

        at com.jfinal.aop.Invocation.invoke(Invocation.java:67)

        at com.jfinal.core.ActionHandler.handle(ActionHandler.java:83)

        at com.eova.handler.UrlBanHandler.handle(UrlBanHandler.java:38)

        at com.jfinal.plugin.druid.DruidStatViewHandler.handle(DruidStatViewHand

ler.java:81)

        at com.jfinal.core.JFinalFilter.doFilter(JFinalFilter.java:73)

        at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(Servlet

Handler.java:1307)

        at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java

:453)

        at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.j

ava:137)

        at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.jav

a:560)

        at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandl

er.java:231)

        at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandl

er.java:1072)

        at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:

382)

        at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandle

r.java:193)

        at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandle

r.java:1006)

        at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.j

ava:135)

        at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(Cont

extHandlerCollection.java:255)

        at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerColl

ection.java:154)

        at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper

.java:116)

        at org.eclipse.jetty.server.Server.handle(Server.java:365)

        at org.eclipse.jetty.server.AbstractHttpConnection.handleRequest(Abstrac

tHttpConnection.java:485)

        at org.eclipse.jetty.server.AbstractHttpConnection.headerComplete(Abstra

ctHttpConnection.java:926)

        at org.eclipse.jetty.server.AbstractHttpConnection$RequestHandler.header

Complete(AbstractHttpConnection.java:988)

        at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:635)

        at org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:235)

        at org.eclipse.jetty.server.AsyncHttpConnection.handle(AsyncHttpConnecti

on.java:82)

        at org.eclipse.jetty.io.nio.SelectChannelEndPoint.handle(SelectChannelEn

dPoint.java:628)

        at org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEnd

Point.java:52)

        at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPoo

l.java:608)

        at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool

.java:543)

        at java.lang.Thread.run(Thread.java:748)

我觉得这个问题的原因是：