[richfaces-issues] [JBoss JIRA] Updated: (RF-11102) NullPointerException in rich:tree node selection

Brian Leathem (JIRA) jira-events at lists.jboss.org
Wed Jul 20 02:48:23 EDT 2011 

     [ https://issues.jboss.org/browse/RF-11102?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Brian Leathem updated RF-11102:
-------------------------------

    Description: 
In a tree selection listener method I update the tree itself and get a nullpointerexception afterwards:

{code} 
18:43:37,156 SEVERE [org.richfaces.log.Context] null: java.lang.NullPointerException
    at org.richfaces.model.ClassicTreeNodeDataModelImpl.setupChildContext(ClassicTreeNodeDataModelImpl.java:49) [:4.0.0-SNAPSHOT]
    at org.richfaces.model.ClassicTreeNodeDataModelImpl.setupChildContext(ClassicTreeNodeDataModelImpl.java:35) [:4.0.0-SNAPSHOT]
    at org.richfaces.model.NodesTreeSequenceKeyModel.setupKey(NodesTreeSequenceKeyModel.java:47) [:4.0.0-SNAPSHOT]
    at org.richfaces.model.TreeSequenceKeyModel.setRowKey(TreeSequenceKeyModel.java:49) [:4.0.0-SNAPSHOT]
    at org.richfaces.component.UIDataAdaptor.setRowKey(UIDataAdaptor.java:277) [:]
    at org.richfaces.renderkit.TreeRendererBase.encodeSelectionStateInput(TreeRendererBase.java:131) [:4.0.0-SNAPSHOT]
    at org.richfaces.renderkit.html.TreeRenderer.encodeEnd(TreeRenderer.java:145) [:4.0.0-SNAPSHOT]
    at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:875) [:2.1.1-FCS]
    at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1763) [:2.1.1-FCS]
    at org.richfaces.context.ExtendedPartialViewContextImpl$RenderVisitCallback.visit(ExtendedPartialViewContextImpl.java:514) [:4.0.0-SNAPSHOT]
    at org.richfaces.context.BaseExtendedVisitContext.invokeVisitCallback(BaseExtendedVisitContext.java:337) [:4.0.0-SNAPSHOT]
    at org.richfaces.component.UIDataAdaptor.visitTree(UIDataAdaptor.java:1235) [:]
    at javax.faces.component.UIComponent.visitTree(UIComponent.java:1600) [:2.1.1-FCS]
    at javax.faces.component.UIComponent.visitTree(UIComponent.java:1600) [:2.1.1-FCS]
    at javax.faces.component.UIComponent.visitTree(UIComponent.java:1600) [:2.1.1-FCS]
    at javax.faces.component.UIForm.visitTree(UIForm.java:335) [:2.1.1-FCS]
    at javax.faces.component.UIComponent.visitTree(UIComponent.java:1600) [:2.1.1-FCS]
    at javax.faces.component.UIComponent.visitTree(UIComponent.java:1600) [:2.1.1-FCS]
    ...
{code}

 

The problem seems to occur when a node is selected which is not present in the new tree.

But the implementation should be so robust that there is no exception.

I do not reassign the bound root node object, instead I remove all child nodes and add the new nodes to the root.

 

The tree definition is:

{code}
<rich:tree value="#{searchBean.suggestTree}" var="node" id="treeSuggest"
nodeClass="com.myapp.web.tree.EstabSuggestTreeNode"
nodeType="#{node.type}" selectionType="ajax"
toggleType="client" render="treeSuggest,detail"
selectionChangeListener="#{searchBean.treeSuggestSelectionChanged}">
<rich:treeNode type="neighborhood">
    <h:outputText value="#{node.name}" />
    </rich:treeNode>
    <rich:treeNode type="estab" >
    <h:outputText value="#{node.name}" />
</rich:treeNode>
</rich:tree>
{code}

  was:
In a tree selection listener method I update the tree itself and get a nullpointerexception afterwards:

 

18:43:37,156 SEVERE [org.richfaces.log.Context] null: java.lang.NullPointerException

    at org.richfaces.model.ClassicTreeNodeDataModelImpl.setupChildContext(ClassicTreeNodeDataModelImpl.java:49) [:4.0.0-SNAPSHOT]

    at org.richfaces.model.ClassicTreeNodeDataModelImpl.setupChildContext(ClassicTreeNodeDataModelImpl.java:35) [:4.0.0-SNAPSHOT]

    at org.richfaces.model.NodesTreeSequenceKeyModel.setupKey(NodesTreeSequenceKeyModel.java:47) [:4.0.0-SNAPSHOT]

    at org.richfaces.model.TreeSequenceKeyModel.setRowKey(TreeSequenceKeyModel.java:49) [:4.0.0-SNAPSHOT]

    at org.richfaces.component.UIDataAdaptor.setRowKey(UIDataAdaptor.java:277) [:]

    at org.richfaces.renderkit.TreeRendererBase.encodeSelectionStateInput(TreeRendererBase.java:131) [:4.0.0-SNAPSHOT]

    at org.richfaces.renderkit.html.TreeRenderer.encodeEnd(TreeRenderer.java:145) [:4.0.0-SNAPSHOT]

    at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:875) [:2.1.1-FCS]

    at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1763) [:2.1.1-FCS]

    at org.richfaces.context.ExtendedPartialViewContextImpl$RenderVisitCallback.visit(ExtendedPartialViewContextImpl.java:514) [:4.0.0-SNAPSHOT]

    at org.richfaces.context.BaseExtendedVisitContext.invokeVisitCallback(BaseExtendedVisitContext.java:337) [:4.0.0-SNAPSHOT]

    at org.richfaces.component.UIDataAdaptor.visitTree(UIDataAdaptor.java:1235) [:]

    at javax.faces.component.UIComponent.visitTree(UIComponent.java:1600) [:2.1.1-FCS]

    at javax.faces.component.UIComponent.visitTree(UIComponent.java:1600) [:2.1.1-FCS]

    at javax.faces.component.UIComponent.visitTree(UIComponent.java:1600) [:2.1.1-FCS]

    at javax.faces.component.UIForm.visitTree(UIForm.java:335) [:2.1.1-FCS]

    at javax.faces.component.UIComponent.visitTree(UIComponent.java:1600) [:2.1.1-FCS]

    at javax.faces.component.UIComponent.visitTree(UIComponent.java:1600) [:2.1.1-FCS]

...

 

The problem seems to occur when a node is selected which is not present in the new tree.

But the implementation should be so robust that there is no exception.

I do not reassign the bound root node object, instead I remove all child nodes and add the new nodes to the root.

 

The tree definition is:

 

<rich:tree value="#{searchBean.suggestTree}" var="node" id="treeSuggest"

nodeClass="com.myapp.web.tree.EstabSuggestTreeNode"

nodeType="#{node.type}" selectionType="ajax"

toggleType="client" render="treeSuggest,detail"

selectionChangeListener="#{searchBean.treeSuggestSelectionChanged}">

<rich:treeNode type="neighborhood">

    <h:outputText value="#{node.name}" />

    </rich:treeNode>

    <rich:treeNode type="estab" >

    <h:outputText value="#{node.name}" />

</rich:treeNode>

</rich:tree>



> NullPointerException in rich:tree node selection
> ------------------------------------------------
>
>                 Key: RF-11102
>                 URL: https://issues.jboss.org/browse/RF-11102
>             Project: RichFaces
>          Issue Type: Bug
>      Security Level: Public(Everyone can see) 
>          Components: component-tree
>    Affects Versions: 4.0.0.Final
>            Reporter: u j
>
> In a tree selection listener method I update the tree itself and get a nullpointerexception afterwards:
> {code} 
> 18:43:37,156 SEVERE [org.richfaces.log.Context] null: java.lang.NullPointerException
>     at org.richfaces.model.ClassicTreeNodeDataModelImpl.setupChildContext(ClassicTreeNodeDataModelImpl.java:49) [:4.0.0-SNAPSHOT]
>     at org.richfaces.model.ClassicTreeNodeDataModelImpl.setupChildContext(ClassicTreeNodeDataModelImpl.java:35) [:4.0.0-SNAPSHOT]
>     at org.richfaces.model.NodesTreeSequenceKeyModel.setupKey(NodesTreeSequenceKeyModel.java:47) [:4.0.0-SNAPSHOT]
>     at org.richfaces.model.TreeSequenceKeyModel.setRowKey(TreeSequenceKeyModel.java:49) [:4.0.0-SNAPSHOT]
>     at org.richfaces.component.UIDataAdaptor.setRowKey(UIDataAdaptor.java:277) [:]
>     at org.richfaces.renderkit.TreeRendererBase.encodeSelectionStateInput(TreeRendererBase.java:131) [:4.0.0-SNAPSHOT]
>     at org.richfaces.renderkit.html.TreeRenderer.encodeEnd(TreeRenderer.java:145) [:4.0.0-SNAPSHOT]
>     at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:875) [:2.1.1-FCS]
>     at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1763) [:2.1.1-FCS]
>     at org.richfaces.context.ExtendedPartialViewContextImpl$RenderVisitCallback.visit(ExtendedPartialViewContextImpl.java:514) [:4.0.0-SNAPSHOT]
>     at org.richfaces.context.BaseExtendedVisitContext.invokeVisitCallback(BaseExtendedVisitContext.java:337) [:4.0.0-SNAPSHOT]
>     at org.richfaces.component.UIDataAdaptor.visitTree(UIDataAdaptor.java:1235) [:]
>     at javax.faces.component.UIComponent.visitTree(UIComponent.java:1600) [:2.1.1-FCS]
>     at javax.faces.component.UIComponent.visitTree(UIComponent.java:1600) [:2.1.1-FCS]
>     at javax.faces.component.UIComponent.visitTree(UIComponent.java:1600) [:2.1.1-FCS]
>     at javax.faces.component.UIForm.visitTree(UIForm.java:335) [:2.1.1-FCS]
>     at javax.faces.component.UIComponent.visitTree(UIComponent.java:1600) [:2.1.1-FCS]
>     at javax.faces.component.UIComponent.visitTree(UIComponent.java:1600) [:2.1.1-FCS]
>     ...
> {code}
>  
> The problem seems to occur when a node is selected which is not present in the new tree.
> But the implementation should be so robust that there is no exception.
> I do not reassign the bound root node object, instead I remove all child nodes and add the new nodes to the root.
>  
> The tree definition is:
> {code}
> <rich:tree value="#{searchBean.suggestTree}" var="node" id="treeSuggest"
> nodeClass="com.myapp.web.tree.EstabSuggestTreeNode"
> nodeType="#{node.type}" selectionType="ajax"
> toggleType="client" render="treeSuggest,detail"
> selectionChangeListener="#{searchBean.treeSuggestSelectionChanged}">
> <rich:treeNode type="neighborhood">
>     <h:outputText value="#{node.name}" />
>     </rich:treeNode>
>     <rich:treeNode type="estab" >
>     <h:outputText value="#{node.name}" />
> </rich:treeNode>
> </rich:tree>
> {code}

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