[jbosstools-issues] [JBoss JIRA] Commented: (JBIDE-4686) "Server returned HTTP response code: 503" warning during HTML/XHTML validation

[Snjezana Peco (JIRA)]

    [ https://jira.jboss.org/jira/browse/JBIDE-4686?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12484605#action_12484605 ] 

Snjezana Peco commented on JBIDE-4686:
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I believe that Julien has a non JBoss Tools plugin which contains an invalid validator.
An older version of the Maven Doxia Editor  is an example of a plugin that is causing this error. See http://jira.codehaus.org/browse/DOXIA-341
The Maven Doxia Editor is included in m2eclipse.

I can't reproduce the error when using JBoss Tools trunk and m2eclipse 0.9.9.20090820.

> "Server returned HTTP response code: 503" warning during HTML/XHTML validation
> ------------------------------------------------------------------------------
>
>                 Key: JBIDE-4686
>                 URL: https://jira.jboss.org/jira/browse/JBIDE-4686
>             Project: Tools (JBoss Tools)
>          Issue Type: Bug
>          Components: Cleanup, Seam
>    Affects Versions: 3.1.0.M2
>            Reporter: Alex Savitsky
>            Assignee: Victor Rubezhny
>            Priority: Blocker
>             Fix For: 3.1.0.M3
>
>
> All HTML/XHTML files are validated with a warning "Server returned HTTP response code: 503 for URL: http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd". W3C site (the one that hosts the referenced XHTML/HTML DTDs) has the following explanation: http://www.w3.org/blog/systeam/2008/02/08/w3c_s_excessive_dtd_traffic. Basically, they now block IPs for machines that request their DTDs too often, and recommend to cache the DTD instead of requesting it every time. Apparently, the JBoss Tools validator is one of the affected ones.
> The solution is simple - please cache the DTDs, given that they're highly unlikely to EVER change.
> Upd: affects M2 version of JBoss Tools as well, not just M1

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