GNU bug report logs - #69989
[PATCH] Fix invocation of Java Language Server

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Philip Kaludercic <philipk <at> posteo.net>
Subject: bug#69989: closed (Re: bug#69989: [PATCH] Fix invocation of Java
 Language Server)
Date: Mon, 25 Mar 2024 07:12:01 +0000

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Your bug report

#69989: [PATCH] Fix invocation of Java Language Server

which was filed against the emacs package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to 69989 <at> debbugs.gnu.org.

-- 
69989: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=69989
GNU Bug Tracking System
Contact help-debbugs <at> gnu.org with problems

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From: Philip Kaludercic <philipk <at> posteo.net>
To: Felician Nemeth <felician.nemeth <at> gmail.com>
Cc: João Távora <joaotavora <at> gmail.com>,
 69989-done <at> debbugs.gnu.org
Subject: Re: bug#69989: [PATCH] Fix invocation of Java Language Server
Date: Mon, 25 Mar 2024 07:11:02 +0000

Felician Nemeth <felician.nemeth <at> gmail.com> writes:

>> It appears that the Java Language Server "jdtls" unfortunately requires
>> a "-data" flag to be passed along with some directory to function
>> properly.  Otherwise it fails or only provides primitive syntax
>> checking, and no completion or other warnings.  This was discussed on
>> the Eglot issue tracker [0].
>
> I don't use jdtls, but it seems the upstream fixed this issue and there
> is no need to modify Eglot.
>
> https://github.com/eclipse-jdtls/eclipse.jdt.ls/pull/2207
> https://github.com/eclipse-jdtls/eclipse.jdt.ls/commit/b93370662a8e4e552dc2af162eb9510b276e0203

Turns out I had an older installation of jdtls.  I have upgraded it and
can confirm that it works without the patch.  So I'll be closing this
report.

-- 
	Philip Kaludercic on icterid

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From: Philip Kaludercic <philipk <at> posteo.net>
To: bug-gnu-emacs <at> gnu.org
Subject: [PATCH] Fix invocation of Java Language Server
Date: Sun, 24 Mar 2024 20:34:26 +0000

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It appears that the Java Language Server "jdtls" unfortunately requires
a "-data" flag to be passed along with some directory to function
properly.  Otherwise it fails or only provides primitive syntax
checking, and no completion or other warnings.  This was discussed on
the Eglot issue tracker [0].

The following patch would invoke the server properly, passing
project-specific cache directory for the program to use.  I use
`xdg-cache-home' to determine what directory to use, but didn't want to
load it at the top of the file.  Are there any strong opinions on that
question?

[0001-Fix-invocation-of-Java-Language-Server.patch (text/x-patch, attachment)]

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Oh and this patch uses functions that are not available in Emacs 26.3,
so it would make sense to apply my patch that adds Compat support to
Eglot first.

[0] https://github.com/joaotavora/eglot/issues/1008

-- 
	Philip Kaludercic on icterid

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