Created: (JBSEAM-1566) Exception during execution of extended el

Exception during execution of extended el
-----------------------------------------

                 Key: JBSEAM-1566
                 URL: http://
jira.jboss.com/jira/browse/JBSEAM-1566
             Project: JBoss Seam
          Issue Type: Bug
            Reporter: Markus Wolf

I have an EntityHome class which acts as my base class for
all EntityHome derivates.
Therein I defined a remove(Object id) method which causes an
exception.

WARNUNG: #{home.remove(entity.id)}:
java.lang.NullPointerException
javax.faces.FacesException: #{home.remove(entity.id)}:
java.lang.NullPointerException
        at
com.sun.faces.application.ActionListenerImpl.processAction(A
ctionListenerImpl.java:99)
        at
javax.faces.component.UICommand.broadcast(UICommand.java:383
)
        at
javax.faces.component.UIData.broadcast(UIData.java:854)
        at
org.ajax4jsf.framework.ajax.AjaxViewRoot.processEvents(AjaxV
iewRoot.java:180)
        at
org.ajax4jsf.framework.ajax.AjaxViewRoot.broadcastEvents(Aja
xViewRoot.java:158)
        at
org.ajax4jsf.framework.ajax.AjaxViewRoot.processApplication(
AjaxViewRoot.java:346)
        at
com.sun.faces.lifecycle.InvokeApplicationPhase.execute(Invok
eApplicationPhase.java:97)
        at
com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.ja
va:251)
        at
com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.
java:117)
        at
javax.faces.webapp.FacesServlet.service(FacesServlet.java:24
4)
        at
org.apache.catalina.core.ApplicationFilterChain.internalDoFi
lter(ApplicationFilterChain.java:269)
        at
org.apache.catalina.core.ApplicationFilterChain.doFilter(App
licationFilterChain.java:188)
        at
org.jboss.seam.web.SeamFilter$FilterChainImpl.doFilter(SeamF
ilter.java:63)
        at
org.jboss.seam.web.ExceptionFilter.doFilter(ExceptionFilter.
java:57)
        at
org.jboss.seam.web.SeamFilter$FilterChainImpl.doFilter(SeamF
ilter.java:49)
        at
org.jboss.seam.debug.hot.HotDeployFilter.doFilter(HotDeployF
ilter.java:60)
        at
org.jboss.seam.web.SeamFilter$FilterChainImpl.doFilter(SeamF
ilter.java:49)
        at
org.jboss.seam.web.RedirectFilter.doFilter(RedirectFilter.ja
va:45)
        at
org.jboss.seam.web.SeamFilter$FilterChainImpl.doFilter(SeamF
ilter.java:49)
        at
org.jboss.seam.web.MultipartFilter.doFilter(MultipartFilter.
java:79)
        at
org.jboss.seam.web.SeamFilter$FilterChainImpl.doFilter(SeamF
ilter.java:49)
        at
org.jboss.seam.web.SeamFilter.doFilter(SeamFilter.java:84)
        at
org.apache.catalina.core.ApplicationFilterChain.internalDoFi
lter(ApplicationFilterChain.java:215)
        at
org.apache.catalina.core.ApplicationFilterChain.doFilter(App
licationFilterChain.java:188)
        at
org.ajax4jsf.framework.ajax.xmlfilter.BaseXMLFilter.doXmlFil
ter(BaseXMLFilter.java:127)
        at
org.ajax4jsf.framework.ajax.xmlfilter.BaseFilter.doFilter(Ba
seFilter.java:277)
        at
org.apache.catalina.core.ApplicationFilterChain.internalDoFi
lter(ApplicationFilterChain.java:215)
        at
org.apache.catalina.core.ApplicationFilterChain.doFilter(App
licationFilterChain.java:188)
        at
org.apache.catalina.core.StandardWrapperValve.invoke(Standar
dWrapperValve.java:210)
        at
org.apache.catalina.core.StandardContextValve.invoke(Standar
dContextValve.java:174)
        at
org.apache.catalina.core.StandardHostValve.invoke(StandardHo
stValve.java:127)
        at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorRepo
rtValve.java:117)
        at
org.apache.catalina.core.StandardEngineValve.invoke(Standard
EngineValve.java:108)
        at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAd
apter.java:151)
        at
org.apache.coyote.http11.Http11Processor.process(Http11Proce
ssor.java:870)
        at
org.apache.coyote.http11.Http11BaseProtocol$Http11Connection
Handler.processConnection(Http11BaseProtocol.java:665)
        at
org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(Poo
lTcpEndpoint.java:528)
        at
org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(
LeaderFollowerWorkerThread.java:81)
        at
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.ru
n(ThreadPool.java:685)
        at java.lang.Thread.run(Thread.java:619)
Caused by: javax.faces.el.MethodNotFoundException:
java.lang.NullPointerException
        at
javax.faces.component.MethodBindingMethodExpressionAdapter.i
nvoke(MethodBindingMethodExpressionAdapter.java:99)
        at
com.sun.faces.application.ActionListenerImpl.processAction(A
ctionListenerImpl.java:91)
        ... 39 more
Caused by: java.lang.NullPointerException
        at
org.jboss.seam.ui.facelet.MethodExpressionHelper.findParamTy
pes(MethodExpressionHelper.java:146)
        at
org.jboss.seam.ui.facelet.MethodExpressionHelper.invokeTheEx
pression(MethodExpressionHelper.java:98)
        at
org.jboss.seam.ui.facelet.ParamMethodExpression.invoke(Param
MethodExpression.java:62)
        at
com.sun.facelets.el.TagMethodExpression.invoke(TagMethodExpr
ession.java:68)
        at
javax.faces.component.MethodBindingMethodExpressionAdapter.i
nvoke(MethodBindingMethodExpressionAdapter.java:77)
        ... 40 more

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Created: (JBSEAM-1566) Exception during execution of extended el

Thread: Created: (JBSEAM-1566) Exception during execution of extended el