java.lang.reflect.InvocationTargetException

Question

java.lang.reflect.InvocationTargetException
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.
java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
sorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:324)
        at com.huanghj.action.BaseDispatchAction.processBusiness(Unknown Source)        at com.huanghj.action.BaseAction.execute(Unknown Source)
        at org.apache.struts.action.RequestProcessor.processActionPerform(Reques
tProcessor.java:421)
        at org.apache.struts.action.RequestProcessor.process(RequestProcessor.ja
va:226)
        at org.apache.struts.action.ActionServlet.process(ActionServlet.java:116
4)
        at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:397)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl
icationFilterChain.java:237)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF
ilterChain.java:157)
        at com.huanghj.filter.SecurityFilter.doFilter(Unknown Source)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl
icationFilterChain.java:186)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF
ilterChain.java:157)
        at com.huanghj.filter.EncodingFilter.doFilter(Unknown Source)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl
icationFilterChain.java:186)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF
ilterChain.java:157)
        at org.springframework.orm.hibernate.support.OpenSessionInViewFilter.doF
ilterInternal(OpenSessionInViewFilter.java:170)
        at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerR
equestFilter.java:73)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl
icationFilterChain.java:186)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF
ilterChain.java:157)
        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperV
alve.java:214)
        at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValv
eContext.java:104)
        at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.jav
a:520)
        at org.apache.catalina.core.StandardContextValve.invokeInternal(Standard
ContextValve.java:198)
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextV
alve.java:152)
        at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValv
eContext.java:104)
        at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.jav
a:520)
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.j
ava:137)
        at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValv
eContext.java:104)
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.j
ava:118)
        at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValv
eContext.java:102)
        at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.jav
a:520)
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineVal
ve.java:109)
        at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValv
eContext.java:104)
        at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.jav
a:520)
        at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:929)        at org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:16
0)
        at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java
:799)
        at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.proce
ssConnection(Http11Protocol.java:705)
        at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java
:577)
        at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadP
ool.java:683)
        at java.lang.Thread.run(Thread.java:534)
Caused by: java.lang.NullPointerException
        at com.huanghj.service.security.impl.SecurityQueryServiceImpl.getPathInf
o(Unknown Source)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.
java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
sorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:324)
        at org.springframework.aop.framework.AopProxyUtils.invokeJoinpointUsingR
eflection(AopProxyUtils.java:61)
        at org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJo
inpoint(ReflectiveMethodInvocation.java:149)
        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(
ReflectiveMethodInvocation.java:116)
        at org.springframework.transaction.interceptor.TransactionInterceptor.in
voke(TransactionInterceptor.java:56)
        at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(
ReflectiveMethodInvocation.java:138)
        at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynami
cAopProxy.java:152)
        at $Proxy2.getPathInfo(Unknown Source)
        at com.huanghj.action.treemanage.BarInfoAction.view(Unknown Source)
        ... 46 more
12:08:15,921  WARN RequestProcessor:509 - Unhandled Exception thrown: class java
.lang.ClassCastException帮忙看下什么原因！！！！

Answer 1

java.lang.ClassCastException
这个异常应该属于类型转换错误，你可以查一下

Answer 2

Caused by: java.lang.NullPointerException
        at com.huanghj.service.security.impl.SecurityQueryServiceImpl.getPathInf
o(Unknown Source)12:08:15,921  WARN RequestProcessor:509 - Unhandled Exception thrown: class java
.lang.ClassCastException一个空指针异常,一个类型转换错误你可以看看是否还有相应的包或者相应的配置文件没有处理好导致以上两个错误!

Answer 3

有没有特定的上下文环境啊？
看上去应该是转行异常导致空指针异常，在导致上面的异常。
而产生转行异常的原因有多种，向下转行失败，或者位于不同的两个classloader等