CODEWITHSUNDEEP
jsfomnifaces
cocorossello
cocorossello

Reputation: 1357

NullPointerException with omnifaces CDNResourceHandler and myfaces 2.2.3

I just moved my application from glassfish to TomEE, that includes moving from mojarra to myfaces. So far I had a few problems that I could fix, but I don't know how to tackle this one.

If I use CDNResourceHandler and the PROJECT_STAGE is Production I get a NullPointerException (it does work fine in Development mode)

java.lang.NullPointerException
javax.faces.application.ResourceWrapper.getLibraryName(ResourceWrapper.java:94)
org.apache.myfaces.renderkit.html.HtmlScriptRenderer.encodeEnd(HtmlScriptRenderer.java:259)
javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:674)
javax.faces.component.UIComponentBase.encodeAll(UIComponentBase.java:554)
org.primefaces.renderkit.HeadRenderer.encodeBegin(HeadRenderer.java:84)
javax.faces.component.UIComponentBase.encodeBegin(UIComponentBase.java:596)
javax.faces.component.UIComponentBase.encodeAll(UIComponentBase.java:526)

The Resource is (org.omnifaces.resourcehandler.CDNResourceHandler$1) https://cdnjs.cloudflare.com/ajax/libs/meyer-reset/2.0/reset.min.css

The relevant parts of the code

faces-config.xml

<application>
    <resource-handler>org.omnifaces.resourcehandler.UnmappedResourceHandler</resource-handler>        
    <resource-handler>org.omnifaces.resourcehandler.CDNResourceHandler</resource-handler>       

</application>

web.xml

    <context-param>
    <param-name>org.omnifaces.CDN_RESOURCE_HANDLER_URLS</param-name>
    <param-value>bootstrap-cdn:bootstrap/3.2.0/js/bootstrap.min.js=//netdna.bootstrapcdn.com/bootstrap/3.2.0/js/bootstrap.min.js,
        bootstrap-cdn:font-awesome/4.1.0/css/font-awesome.css=//netdna.bootstrapcdn.com/font-awesome/4.1.0/css/font-awesome.css,
        bootstrap-cdn:bootstrap/3.2.0/css/bootstrap.min.css=//netdna.bootstrapcdn.com/bootstrap/3.2.0/css/bootstrap.min.css,
        cloudflare-cdn:meyer-reset/2.0/reset.min.css=https://cdnjs.cloudflare.com/ajax/libs/meyer-reset/2.0/reset.min.css.....

Omnifaces 1.8.1 (also tried with 2.0-SNAPSHOT) Myfaces 2.2.3

Upvotes: 1

Views: 246

Answers (1)

BalusC
BalusC

Reputation: 1109532

MyFaces needed the library and resource name of the original resource so that it could mark the resource as "already rendered" (to prevent duplicate rendering). However, the CDNResourceHandler didn't pass the original resource back via getWrapped().

This has been fixed and is available as per current snapshot. In the future, when you encounter an exception when using OmniFaces, you'd better report an issue.

Upvotes: 1

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