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https://issues.jboss.org/browse/RF-13780?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12993077#comment-12993077
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Brian Leathem commented on RF-13780:
------------------------------------
[~michaelb80] refer to this guide on debugging RichFaces. Also, try with RF
4.5.0.Alpha3.
> Random JavaScript error due to missing attribute 'richfaces.RICH_CONTAINER'
> ---------------------------------------------------------------------------
>
> Key: RF-13780
> URL: https://issues.jboss.org/browse/RF-13780
> Project: RichFaces
> Issue Type: Bug
> Security Level: Public(Everyone can see)
> Components: component, component-tree
> Affects Versions: 4.3.7
> Environment: RichFaces 4.3.7
> Mojarra 2.1.29
> Java 7 Update 67 (x64)
> Tomcat 7.0.52 (x64)
> Firefox 31
> Reporter: Michael B
>
> First of all: this is a bug report which may be related to RF-13776, since it
> also originates in the same spot of the JavaScript library of RichFaces.
> Preface:
> The problem is difficult to reproduce systematically, since it only seems to
> occur in one of n cases of loading one and the same complex xhtml (with
> exactly the same data from the backing bean).
> The problem is described based on the rich:tree component when clicking on
> the expand icon of a treeNode which fires a "ToggleEvent".
> Occasionally there is a JavaScript error in the last line of
> {code}
> richfaces.ui.TreeNode.emitToggleEvent = function(nodeId) {
> var node = document.getElementById(nodeId);
> if (!node) {
> return;
> }
> richfaces.$(node).__fireToggleEvent();
> };
> {code}
> When the problem occurs, the expression {code}richfaces.$(node){code}
> evaluates to 'undefined'.
> Debugging into the function when the problem occurs:
> {code:title=richfaces.$|borderStyle=solid}
> richfaces.$ = function(source) {
> var element = richfaces.getDomElement( source );
> if(element)
> {
> return( element[richfaces.RICH_CONTAINER] || {} )["component"]
> }
> };
> {code}
> While the element is correctly evaluated to the
> treeNode/treeNodeToggle-source, the expression
> {code}element[richfaces.RICH_CONTAINER]{code} evaluates to 'undefined'.
> Reloading the page one or more times produces correct results, where the
> attribute is set.
> To be able to provide a reproducable example of the problem, please provide
> some information under which circumstances the property may not be set
> correctly for some components. Please also give us a hint, where to debug
> into the RF JavaScript code to find the spot where this property is set.
> Although the problem doesn't occur all the time, it happens quite often with
> the effect of breaking the entire application. So for future versions I would
> suggest a check if {code}richfaces.$(xyz){code} evalutes to a valid result,
> before invoking any operations on the result and maybe write a message to the
> a4j:log in cases where a valid result is expected but not returned.
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