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https://issues.apache.org/jira/browse/NETBEANS-2842?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17447088#comment-17447088
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Michael Bien commented on NETBEANS-2842:
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as far as i can tell, this the current situation:
* pack200 is available in JDK 11, NB is currently also supporting JDK 8 - and
both can be used to install old plugins
* the problem is only a problem for old, unmaintained plugins, since
maintained plugins can be rebuild without pack200
* there might be also the option to repack plugins (without rebuild) outside
of NB using JDK11 and unpack200 via shell script or tool/service
since pack200 is a bytecode aware compression algorithm, and it doesn't seem to
be maintained beyond 14, i don't think its realistic to actually keep
supporting it long term. The main motivation for it was webstart, which is gone
too for quite a while, so there shouldn't be many users interested in keeping
it alive left.
So i would recommend doing the following:
* check if old (popular) plugins could be rebuild without pack200, get in
touch with the maintainers
* try to make a convenient tool which can repack a plugin without pack200 (e.g
jlink + JDK11)
* disable all pack200 in NB if it isn't disabled yet, warn in UI if its used
for plugin distribution
* don't allow new pack200 plugins on the plugin portal
I just rebuild as an exercise a NB platform project I haven't touched since
2009 and could not find any issues while running on NB 12.5+JDK17 in UX without
pack200 enabled. (took me about 30-60 mins to fix dependencies and make it
compile, pack200 was luckily just a checkbox)
> Using of deprecated pack200 tool in nbm packaging
> -------------------------------------------------
>
> Key: NETBEANS-2842
> URL: https://issues.apache.org/jira/browse/NETBEANS-2842
> Project: NetBeans
> Issue Type: Bug
> Components: platform - Plugin Manager
> Affects Versions: 11.3
> Reporter: Benjamin Graf
> Priority: Critical
> Attachments: nbpython.zip, unpack200 failure.png
>
>
> Netbeans plugins are mostly compressed in size by the JDK internal pack200
> tool which is deprecated since JDK 11 ([https://openjdk.java.net/jeps/336]).
> It should be thought about an alternative as it might get removed in next JDK
> releases.
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