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我正在升级旧项目的框架。这些更新包括几个主要版本：ConcurrentModificationException在更新到Hibernate 5.2.4之后，Spring 4.3.3，Struts 2.5.5
- 休眠3.1 - > 5.2.4
- 春2.1 - > 4.3.3
- 的Struts 2.1 - > 2.5.5
- 弹簧安全2.X - > 4.1.3
- 阿帕奇百科全书集合3.2.1 - > 3.2.2（如果需要更新到4.x的是可能的）
JDK没有遭受任何更新，我们使用的是Java 8.虽然我相信没有源头e代码在更新之前使用任何Java 8功能。
我扶着编译器和我固定所有的类引用，更新DTD的框架等
最后的项目只有几个弃用wornings并没有错误编译。然而，只要我加载索引页面，登录提示，我会得到下面的错误。
下面的代码中只有4个类不属于Spring/Strut/Hibernate，但他们所做的只是在Spring安全性上调用doFilter。简单的授权。我不创建，返回或遍历任何列表或hashmaps。
任何想法表示赞赏。下面全堆栈跟踪。谢谢。
SEVERE: Servlet.service() for servlet [default] in context with path [/FeedXLWebapp] threw exception
java.util.ConcurrentModificationException
at java.util.HashMap$HashIterator.nextNode(HashMap.java:1437)
at java.util.HashMap$KeyIterator.next(HashMap.java:1461)
at org.apache.commons.collections.iterators.IteratorEnumeration.nextElement(IteratorEnumeration.java:76)
at java.util.ResourceBundle.handleKeySet(ResourceBundle.java:1854)
at java.util.ResourceBundle.containsKey(ResourceBundle.java:1807)
at org.springframework.context.support.ResourceBundleMessageSource.getStringOrNull(ResourceBundleMessageSource.java:291)
at org.springframework.context.support.ResourceBundleMessageSource.resolveCodeWithoutArguments(ResourceBundleMessageSource.java:131)
at org.springframework.context.support.AbstractMessageSource.getMessageInternal(AbstractMessageSource.java:218)
at org.springframework.context.support.AbstractMessageSource.getMessage(AbstractMessageSource.java:136)
at org.springframework.context.support.AbstractApplicationContext.getMessage(AbstractApplicationContext.java:1249)
at org.springframework.context.support.MessageSourceAccessor.getMessage(MessageSourceAccessor.java:83)
at org.springframework.security.access.vote.AffirmativeBased.decide(AffirmativeBased.java:84)
at org.springframework.security.access.intercept.AbstractSecurityInterceptor.beforeInvocation(AbstractSecurityInterceptor.java:233)
at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:124)
at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:91)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)
at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:115)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)
at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:111)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)
at au.com.xprime.feedxl.accounts.security.spring.AuthenticationPostProcessingFilter.doFilterHttp(AuthenticationPostProcessingFilter.java:33)
at au.com.xprime.feedxl.accounts.security.spring.AuthenticationPostProcessingFilter.doFilter(AuthenticationPostProcessingFilter.java:22)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)
at org.springframework.security.web.authentication.rememberme.RememberMeAuthenticationFilter.doFilter(RememberMeAuthenticationFilter.java:150)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)
at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:200)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)
at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:121)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)
at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:105)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)
at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:214)
at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:177)
at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:346)
at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:262)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at au.com.xprime.feedxl.accounts.auth.filters.BrowserCheckFilter.doFilter(BrowserCheckFilter.java:32)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at au.com.xprime.webapp.filters.ResponseCacheControlFilter.doFilter(ResponseCacheControlFilter.java:102)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.tuckey.web.filters.urlrewrite.RuleChain.handleRewrite(RuleChain.java:176)
at org.tuckey.web.filters.urlrewrite.RuleChain.doRules(RuleChain.java:145)
at org.tuckey.web.filters.urlrewrite.UrlRewriter.processRequest(UrlRewriter.java:92)
at org.tuckey.web.filters.urlrewrite.UrlRewriteFilter.doFilter(UrlRewriteFilter.java:389)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1041)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:603)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:312)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
确认您是否升级了JDK和/或Apache Commons Collections。如果是，那么到哪个版本？ –
@ Bond-JavaBond我使用您要求的jdk和库版本更新了我的文章。我也试着用commons-collections 4.1做一个快速运行，但是它好像在3.2.2和4.1之间有很大的改变。我会和普通人一起玩4.1，因为缺乏更好的想法，也许它会起作用。 –
Okies ..因为您已经使用JDK 8，它似乎是不同的问题，因为JDK 8有某些增强，导致'ConcurrentModificationException' –