[richfaces-issues] [JBoss JIRA] Created: (RF-10057) Metamer - rich:dragSource, rich:dragIndicator, rich:dropTarget - setting attributes causes NPE

[Lukas Fryc (JIRA)]

Metamer - rich:dragSource, rich:dragIndicator, rich:dropTarget - setting attributes causes NPE
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                 Key: RF-10057
                 URL: https://issues.jboss.org/browse/RF-10057
             Project: RichFaces
          Issue Type: Bug
      Security Level: Public (Everyone can see)
          Components: component-drag/drop
    Affects Versions: 4.0.0.Milestone5
         Environment:     * RichFaces 4.0.0-SNAPSHOT r.20682
    * Metamer 4.0.0-SNAPSHOT r.20684
    * Mojarra 2.0.3-FCS
    * Apache Tomcat 6.0.29
    * OpenJDK Runtime Environment 1.6.0_20-b20 @ Linux
    * Firefox 1.9.2.13 @ Linux x86_64

            Reporter: Lukas Fryc


The issue applies for all the following samples:

rich:dropTarget: http://localhost:8080/metamer/faces/components/richDropTarget/simple.xhtml
rich:dragSource: http://localhost:8080/metamer/faces/components/richDragSource/simple.xhtml
rich:dragIndicator: http://localhost:8080/metamer/faces/components/richDragIndicator/simple.xhtml

Attached Facelets error page (exception.html).



The problem is that clientId is null in the following condition:

UIComponent:1275

public boolean invokeOnComponent(FacesContext context, String clientId,
            ContextCallback callback) throws FacesException {
        if (null == context || null == clientId || null == callback) {
            throw new NullPointerException();
        }
...

Stacktrace:


java.lang.NullPointerException
	at javax.faces.component.UIComponent.invokeOnComponent(UIComponent.java:1275)
	at javax.faces.component.UIComponentBase.invokeOnComponent(UIComponentBase.java:673)
	at org.richfaces.renderkit.DropTargetRenderer.doDecode(DropTargetRenderer.java:38)
	at org.richfaces.renderkit.RendererBase.decode(RendererBase.java:82)
	at javax.faces.component.UIComponentBase.decode(UIComponentBase.java:791)
	at javax.faces.component.UIComponentBase.processDecodes(UIComponentBase.java:1048)
	at javax.faces.component.UIComponentBase.processDecodes(UIComponentBase.java:1043)
	at javax.faces.component.UIForm.processDecodes(UIForm.java:212)
	at javax.faces.component.UIComponentBase.processDecodes(UIComponentBase.java:1043)
	at javax.faces.component.UIComponentBase.processDecodes(UIComponentBase.java:1043)
	at javax.faces.component.UIComponentBase.processDecodes(UIComponentBase.java:1043)
	at javax.faces.component.UIViewRoot.processDecodes(UIViewRoot.java:920)
	at com.sun.faces.lifecycle.ApplyRequestValuesPhase.execute(ApplyRequestValuesPhase.java:74)
	at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:97)
	at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:114)
	at javax.faces.webapp.FacesServlet.service(FacesServlet.java:308)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at org.richfaces.tests.metamer.TestIdentityFilter.doFilter(TestIdentityFilter.java:93)
	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.core.StandardHostValve.invoke(StandardHostValve.java:127)
	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:298)
	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:857)
	at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
	at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
	at java.lang.Thread.run(Thread.java:636)


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