Ideployawebappinwebsphere5.1.0.Myweb.xmlisCode:<filter-mapping<filter-namesecurityFilter</filter-name<url-pattern/j_security_check</url-pattern</filter-mapping...........<filter<filter-namesecurityFilter</filter-name<filter-class egisecurity.util.FilterToBeanProxy</filter-class<init-paramtargetClass egisecurity.util.FilterChainProxy</init-param</filterandapplicationContext.xmlisCode:<beanid="filterChainProxy"class=" egisecurity.util.FilterChainProxy"<valueCONVERT_URL_TO_LOWERCASE_BEFORE_COMPARISONPATTERN_TYPE_APACHE_ANT/j_security_check*=httpSessionContextIntegrationFilter,authenticationProcessingFilter</value</beanwhileloginon,Igotthefollowingerrrorandtheieur :WebGroupESRVE0026E:Ser : tServletReference(WebAppServletManager.) .webcontainer.webapp. tServletReference(WebApp.) lculateInfo(WebAppRequestDispatcherInfo.) .webcontainer.webapp.WebAppRequestDispatcherInfo.<init(WebAppRequestDispatcherInfo.) tRequestDispatcher(WebApp.) tRequestDispatcher(WebApp.) t.WebAppInvoker.handleInvocationHook(WebAppInvoker.) vocation.CachedInvocation.handleInvocation(CachedInvocation.) p.ServletRequestProcessor.dispatchByURI(ServletRequestProcessor.) rvice(OSEListener.) tp.HttpConnection.handleRequest(HttpConnection.) adAndHandleRequest(HttpConnection.) n(HttpConnection.) .util.ThreadPool$ n(ThreadPool.)

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當(dāng)前登錄操作系統(tǒng)的用戶不是管理員或權(quán)限太低，WebSphere登錄認(rèn)證時(shí)可能需要訪問(wèn)某些目錄的文件，可能當(dāng)前用戶沒(méi)有權(quán)限訪問(wèn)這些文件，換為管理員登錄看看是否還有有問(wèn)題？另外一個(gè)可能是：你的web工程中包含的jar文件與websphere所使用的產(chǎn)生了沖突，建議你逐一檢查一下websphere安裝目錄下是否存在同名的jar，如果存在盡量使用websphere的jar文件。

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Please check wheather you've config the servlet lib to your complier correctily. It's possible that the complier didn't find the lib to complie your servlet program segment.