NullPointerException in UpdateActionListener caused by getType()
----------------------------------------------------------------
Key: TOMAHAWK-1475
URL: https://issues.apache.org/jira/browse/TOMAHAWK-1475
Project: MyFaces Tomahawk
Issue Type: Bug
Components: UpdateActionListener
Affects Versions: 1.1.9
Environment: myfaces 1.2.8
richfaces 3.3.2
tiles 2.0.5
tomcat 6.0.18
Reporter: Michael Heinen
Commands using a t:updateActionListener are not working anymore due to a
java.lang.NullPointerException
at
org.apache.myfaces.custom.updateactionlistener.UpdateActionListener.processAction(UpdateActionListener.java:137)
Line 137:
if (!type.equals(String.class) && ! type.equals(Object.class))
Cause:
java.lang.NullPointerException
at
org.apache.myfaces.custom.updateactionlistener.UpdateActionListener.processAction(UpdateActionListener.java:137)
at
javax.faces.event.ActionEvent.processListener(ActionEvent.java:51)
at
javax.faces.component.UIComponentBase.broadcast(UIComponentBase.java:554)
at javax.faces.component.UICommand.broadcast(UICommand.java:110)
at javax.faces.component.UIData.broadcast(UIData.java:721)
at
org.ajax4jsf.component.AjaxViewRoot.processEvents(AjaxViewRoot.java:324)
at
org.ajax4jsf.component.AjaxViewRoot.broadcastEvents(AjaxViewRoot.java:299)
at
org.ajax4jsf.component.AjaxViewRoot.processPhase(AjaxViewRoot.java:256)
at
org.ajax4jsf.component.AjaxViewRoot.processDecodes(AjaxViewRoot.java:412)
at
org.apache.myfaces.lifecycle.ApplyRequestValuesExecutor.execute(ApplyRequestValuesExecutor.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.custom.ppr.PPRLifecycleWrapper.execute(PPRLifecycleWrapper.java:68)
at
javax.faces.webapp.FacesServlet.service(FacesServlet.java:178)
at
com.recommind.xxx.servlets.FacesServletWrapper.service(FacesServletWrapper.java:123)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at
org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:178)
at
org.ajax4jsf.webapp.BaseFilter.handleRequest(BaseFilter.java:290)
at
org.ajax4jsf.webapp.BaseFilter.processUploadsAndHandleRequest(BaseFilter.java:388)
at org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:515)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at
org.apache.myfaces.webapp.filter.ExtensionsFilter.doFilter(ExtensionsFilter.java:384)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at
com.recommind.xxx.filters.LoginFilter.doFilter(LoginFilter.java:193)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at
com.recommind.xxx.client.web.filters.EncodingFilter.doFilter(EncodingFilter.java:49)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at
com.recommind.xxx.filters.TimerFilter.doFilter(TimerFilter.java:71)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:433)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)
at
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:845)
at
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
at
org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
at java.lang.Thread.run(Thread.java:619)
Sample jsp snippet:
<t:dataList var="batch"
value="#{MyController1.myList}" ...>
<t:commandButton id="batchSelectCmd" forceId="true"
immediate="true"
action="#{MyController12.search}"
value="foo"
disabled="#{empty
batch.attributes['reviewState'][0]}"
... >
<t:updateActionListener property="#{requestScope['selectedBatch']}"
value="#{batch.value}"/>
</t:commandButton>
</t:dataList>
Commands are working with the 1.1 compliant libs.
Commands are working without t:updateActionListener.
A similar issue is MYFACES-1819 "h:selectManyCheckbox with
value="#{bean.map['somekey']}" fails"
A workaround is to replace updateActionListener by setPropertyActionListener
(Thanks to Mike Kienenberger).
Copied from the corresponding email thread on the dev list from Leonardo Uribe:
"In few words the problem is that in EL, expressions like
"#{bean.map['somekey']}" returns null when getType() is called. Note this does
not happens in jsf 1.1, but on jsf 1.2.
Checking the code of f:setPropertyActionListener, it just do a simple call like
this:
target.setValue(ectx, value.getValue(ectx));
But t:updateActionListener has an additional converter property, so it try to
use the converter before call setValue."
Discussion in user list.
http://marc.info/?l=myfaces-user&m=126089767620528&w=2
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
