myfaces-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Jan-Kees van Andel (JIRA)" <...@myfaces.apache.org>
Subject [jira] Commented: (EXTSCRIPT-36) NPE in when clicking button in myfaces 1.2 example
Date Mon, 14 Dec 2009 11:29:18 GMT

    [ https://issues.apache.org/jira/browse/EXTSCRIPT-36?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12790105#action_12790105
] 

Jan-Kees van Andel commented on EXTSCRIPT-36:
---------------------------------------------

I also tried a quick fix (some null checks), but unfortunately this didn't solve anything.
If I have some spare time tonight, I'll also take a look at the cause. For one, I saw two
strange (copy-paste) methods in WeavingContext.java:

    public static Object createMethodReloadingProxyFromObject(Object o, Class theInterface,
int artefactType) {
        return Proxy.newProxyInstance(o.getClass().getClassLoader(),
                                      new Class[]{theInterface},
                                      new MethodLevelReloadingHandler(o, artefactType));
    }

    public static Object createConstructorReloadingProxyFromObject(Object o, Class theInterface,
int artefactType) {
        return Proxy.newProxyInstance(o.getClass().getClassLoader(),
                                      new Class[]{theInterface},
                                      new MethodLevelReloadingHandler(o, artefactType));
    }

Both return a MethodLevelReloadingHandler.

However, changing the second method to return a ConstructorLevelReloadingHandler, doesn't
make a difference. The same exception occurs.

> NPE in when clicking button in myfaces 1.2 example
> --------------------------------------------------
>
>                 Key: EXTSCRIPT-36
>                 URL: https://issues.apache.org/jira/browse/EXTSCRIPT-36
>             Project: MyFaces Extensions Scripting
>          Issue Type: Bug
>            Reporter: Jan-Kees van Andel
>            Assignee: Werner Punz
>
> When I enter some data in the upper input field in the MF 1.2 example, I get the following
NPE:
> javax.faces.FacesException: Exception while validating component with path : {Component-Path
: [Class: javax.faces.component.UIViewRoot,ViewId: /helloWorld.xhtml][Class: javax.faces.component.html.HtmlForm,Id:
form][Class: javax.faces.component.html.HtmlPanelGrid,Id: grid][Class: javax.faces.component.html.HtmlInputText,Id:
input1]}
> 	at javax.faces.component.UIInput.validate(UIInput.java:421)
> 	at javax.faces.component.UIInput.processValidators(UIInput.java:186)
> 	at javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:726)
> 	at javax.faces.component.UIForm.processValidators(UIForm.java:82)
> 	at javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:726)
> 	at javax.faces.component.UIViewRoot.access$101(UIViewRoot.java:62)
> 	at javax.faces.component.UIViewRoot$2.process(UIViewRoot.java:133)
> 	at javax.faces.component.UIViewRoot.process(UIViewRoot.java:260)
> 	at javax.faces.component.UIViewRoot.processValidators(UIViewRoot.java:129)
> 	at org.apache.myfaces.lifecycle.ProcessValidationsExecutor.execute(ProcessValidationsExecutor.java:32)
> 	at org.apache.myfaces.lifecycle.LifecycleImpl.executePhase(LifecycleImpl.java:103)
> 	at org.apache.myfaces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:76)
> 	at org.apache.myfaces.scripting.jsf.dynamicdecorators.implemetations.LifefcycleProxy.execute(LifefcycleProxy.java:60)
> 	at javax.faces.webapp.FacesServlet.service(FacesServlet.java:178)
> 	at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:491)
> 	at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1074)
> 	at org.apache.myfaces.webapp.filter.ExtensionsFilter.doFilter(ExtensionsFilter.java:147)
> 	at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1065)
> 	at org.apache.myfaces.scripting.servlet.ScriptingServletFilter.doFilter(ScriptingServletFilter.java:48)
> 	at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1065)
> 	at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:365)
> 	at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:185)
> 	at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181)
> 	at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:689)
> 	at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:391)
> 	at org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:146)
> 	at org.mortbay.jetty.handler.HandlerCollection.handle(HandlerCollection.java:114)
> 	at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:139)
> 	at org.mortbay.jetty.Server.handle(Server.java:285)
> 	at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:457)
> 	at org.mortbay.jetty.HttpConnection$RequestHandler.content(HttpConnection.java:765)
> 	at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:628)
> 	at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:209)
> 	at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:357)
> 	at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:329)
> 	at org.mortbay.thread.BoundedThreadPool$PoolThread.run(BoundedThreadPool.java:475)
> Caused by: java.lang.NullPointerException
> 	at org.apache.myfaces.scripting.core.CoreWeaver.reloadScriptingClass(CoreWeaver.java:70)
> 	at org.apache.myfaces.scripting.core.MethodLevelReloadingHandler.reloadInvoke(MethodLevelReloadingHandler.java:87)
> 	at org.apache.myfaces.scripting.core.MethodLevelReloadingHandler.invoke(MethodLevelReloadingHandler.java:65)
> 	at $Proxy6.validate(Unknown Source)
> 	at javax.faces.component._ComponentUtils.callValidators(_ComponentUtils.java:159)
> 	at javax.faces.component.UIInput.validateValue(UIInput.java:357)
> 	at javax.faces.component.UIInput.validate(UIInput.java:405)
> 	... 35 more
> The debugger says that aclass is null.
> Since this statement is only for debugging, I assume the quick fix is simple. Don't know
the impact on the rest of the codebase...

-- 
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.


Mime
View raw message