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https://issues.apache.org/jira/browse/NETBEANS-112?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16239242#comment-16239242
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ASF GitHub Bot commented on NETBEANS-112:
-----------------------------------------
lbruun opened a new pull request #241: [NETBEANS-112] Re-integrate DTD for RSS
0.91 feed
URL: https://github.com/apache/incubator-netbeans/pull/241
This change undoes the removal of the DTD file done by Oracle as preparation
for the donation. The change fixes NETBEANS-112.
It is assumed that Oracle removed the file from the donation as it wasn't
theirs to donate.
See:
http://hg.netbeans.org/releases/rev/66633aaa2811
http://hg.netbeans.org/releases/rev/00ff3249694f
**About license for DTD file:**
Netscape transferred the RSS 0.91 specification to the RSS Advisory Board in
January 2008. From their website I cannot figure out what the license is for
the 0.91 DTD file, but newer versions of the RSS spec seem to be published
under the _Creative Commons Attribution/Share Alike 2.0_ license. However, this
conclusion cannot be made for the 0.91 spec. No license header has thus been
added to the DTD file, only a note about from where it has been downloaded.
Instead it is assumed, that the DTD file fall under the
https://www.apache.org/legal/resolved.html#category-b
definition of:
> For small amounts of source that is directly consumed by the ASF product
> at runtime in source form, and for which that source is unmodified and
> unlikely to be changed anyway (say, by virtue of being specified by a
> standard), inclusion of appropriately labeled source is also permitted.
> An example of this is the web-facesconfig_1_0.dtd, whose inclusion is
> mandated by the JSR 127: JavaServer Faces specification.
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> Welcome module (RSS) feed broken in donation
> --------------------------------------------
>
> Key: NETBEANS-112
> URL: https://issues.apache.org/jira/browse/NETBEANS-112
> Project: NetBeans
> Issue Type: Bug
> Components: ide - Welcome
> Reporter: lbruun
> Priority: Minor
> Labels: pull-request-available
> Attachments: NB-2017.png
>
>
> !NB-2017.png!
> In Apache NetBeans the RSS feeds in Welcome Page no longer works. Works on
> current hg main-silver and works in NB 8.2.
> The problem occurs when the downloaded XML has a doctype declaration:
> {code:xml}
> <!DOCTYPE rss PUBLIC "-//Netscape Communications//DTD RSS 0.91//EN"
> "http://my.netscape.com/publish/formats/rss-0.91.dtd";>
> {code}
> There used to be a "registered" DTD for this in the Welcome module but it was
> removed as part of Oracle's cleanup prior to donation. This is why it works
> on current hg main-silver, but not on the donated code.
> See:
> http://hg.netbeans.org/releases/rev/66633aaa2811
> http://hg.netbeans.org/releases/rev/00ff3249694f
> Because of the removal, the XML Reader will - in the absence of a registered
> DTD - attempt to download the DTD from the Internet, i.e. it will attempt to
> download http://my.netscape.com/publish/formats/rss-0.91.dtd, which will fail
> because it redirects to {{aol.com}} and there isn't a DTD at that location.
> (duh!, I'm actually surprised that {{netscape.com}} still exists and forwards
> to {{aol.com}}, it's been 18 years since the acquisition !)
> The RSS feed from planetnetbeans.org (right side of screenshot) doesn't have
> a DOCTYPE declaration which is why it works.
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