Jsf java.io.NotSerializableException:org.omnifaces.taghandler.ImportConstants$ConstantsMap，当使用omnifaces o:ImportConstants时

我们用

• JSF2.1
• RichFaces 4
• OmniFaces 1.5

我们得到以下例外情况：

 java.io.NotSerializableException: org.omnifaces.taghandler.ImportConstants$ConstantsMap

当使用

和

javax.faces.STATE\u SAVING\u方法

作为客户端时，会出现这种情况

以前有人见过这个吗？解决办法是什么

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感谢您为解决此问题提供的帮助。

解决方法很简单，只需让

org.omnifaces.util.MapWrapper

实现

可序列化

。我有，今天最新的有售。然而，原因很奇怪。我没想到它会被保存到JSF状态，因为它是一个EL表达式。所以我看得更远一点，只是为了学习

为了完整起见，下面是我在Tomcat 7.0.47上的Mojarra 2.1.28中遇到的stacktrace，它使用客户端状态保存和一个

将常量作为方法参数传递，如下所示：

<o:importConstants type="com.example.Constants" />
<f:event type="preRenderView" listener="#{bean.method(Constants.SOME)}" />

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然后点燃。。这张照片出现了。枚举值解析为EL文字。

ValueExpressionLiteral

将序列化用于状态保存的文本值（计算值本身），而不是具体表达式

{Constants.SOME}

。这毕竟是有道理的，枚举无论如何都是常量。

哪个JSF impl/版本？（如果提供了服务器，请选择哪个服务器impl/版本？）。我无法在Tomcat7.0.47上用Mojarra 2.1.28和MyFaces 2.1.15用上述状态保存方法复制它。至少，尽可能小的XHTML文件也会很有帮助，它仍然可以通过复制“n”粘贴“n”不经修改地运行来再现问题。顺便说一句，我知道如何解决它，但我想先了解原因。到目前为止，我无法复制它，因此我不理解：）状态保存（可能是一个过时的JSF impl版本）一定发生了一些奇怪的事情。@balusc Bauke，我们使用的是运行在Websphere上的Mojarra 2.1。如果我把州储蓄注释掉，效果很好<代码>这是与我们的代码类似的代码。我将尝试提出一些代码，您可以复制/粘贴并运行。我还将尝试更新到mojarra 2.1.28并进行尝试。哪个mojarra 2.1版本？@BalusC它是mojarra 2.1.9.Snapshot，当我添加所述的

时，该常量被指定为方法参数，也是在2.1.28上。有趣。看着它…太棒了！我拍了最新的快照，效果很好，你的解释很有道理。我也得到了相同的堆栈跟踪。像往常一样，您很快就提供了一个解决方案：）我们非常感谢您使用omnifaces所做的工作以及它的用处。

java.io.NotSerializableException: org.omnifaces.taghandler.ImportConstants$ConstantsMap
    at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1181)
    at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:347)
    at org.apache.el.ValueExpressionLiteral.writeExternal(ValueExpressionLiteral.java:109)
    at java.io.ObjectOutputStream.writeExternalData(ObjectOutputStream.java:1456)
    at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1427)
    at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1175)
    at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:347)
    at java.util.HashMap.writeObject(HashMap.java:1100)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:606)
    at java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:988)
    at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1493)
    at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1429)
    at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1175)
    at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:347)
    at org.apache.el.lang.VariableMapperImpl.writeExternal(VariableMapperImpl.java:59)
    at java.io.ObjectOutputStream.writeExternalData(ObjectOutputStream.java:1456)
    at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1427)
    at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1175)
    at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:347)
    at org.apache.el.MethodExpressionImpl.writeExternal(MethodExpressionImpl.java:308)
    at java.io.ObjectOutputStream.writeExternalData(ObjectOutputStream.java:1456)
    at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1427)
    at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1175)
    at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:347)
    at com.sun.faces.facelets.el.TagMethodExpression.writeExternal(TagMethodExpression.java:152)
    at java.io.ObjectOutputStream.writeExternalData(ObjectOutputStream.java:1456)
    at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1427)
    at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1175)
    at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1541)
    at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1506)
    at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1429)
    at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1175)
    at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1541)
    at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1506)
    at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1429)
    at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1175)
    at java.io.ObjectOutputStream.writeArray(ObjectOutputStream.java:1375)
    at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1171)
    at java.io.ObjectOutputStream.writeArray(ObjectOutputStream.java:1375)
    at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1171)
    at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1541)
    at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1506)
    at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1429)
    at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1175)
    at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:347)
    at java.util.ArrayList.writeObject(ArrayList.java:710)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:606)
    at java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:988)
    at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1493)
    at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1429)
    at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1175)
    at java.io.ObjectOutputStream.writeArray(ObjectOutputStream.java:1375)
    at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1171)
    at java.io.ObjectOutputStream.writeArray(ObjectOutputStream.java:1375)
    at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1171)
    at java.io.ObjectOutputStream.writeArray(ObjectOutputStream.java:1375)
    at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1171)
    at java.io.ObjectOutputStream.writeArray(ObjectOutputStream.java:1375)
    at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1171)
    at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:347)
    at java.util.HashMap.writeObject(HashMap.java:1100)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:606)
    at java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:988)
    at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1493)
    at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1429)
    at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1175)
    at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:347)
    at com.sun.faces.renderkit.ClientSideStateHelper.doWriteState(ClientSideStateHelper.java:424)
    at com.sun.faces.renderkit.ClientSideStateHelper.writeState(ClientSideStateHelper.java:210)
    at com.sun.faces.renderkit.ResponseStateManagerImpl.writeState(ResponseStateManagerImpl.java:122)
    at com.sun.faces.application.StateManagerImpl.writeState(StateManagerImpl.java:113)
    at com.sun.faces.application.view.WriteBehindStateWriter.flushToWriter(WriteBehindStateWriter.java:225)
    at com.sun.faces.application.view.FaceletViewHandlingStrategy.renderView(FaceletViewHandlingStrategy.java:464)
    at com.sun.faces.application.view.MultiViewHandler.renderView(MultiViewHandler.java:125)
    at javax.faces.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:286)
    at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:120)
    at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
    at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:139)
    at javax.faces.webapp.FacesServlet.service(FacesServlet.java:594)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
    at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51)
    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$SocketProcessor.run(JIoEndpoint.java:310)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:724)