Could not find or load main class org.eclipse.lemminx.XMLServerLauncher

[JavorszkyGaborOrianaWorld]

Type: Bug

Occurs on start, extension does not load...

Error: Could not find or load main class org.eclipse.lemminx.XMLServerLauncher
Caused by: java.lang.ClassNotFoundException: org.eclipse.lemminx.XMLServerLauncher
[Info - 2:22:22 PM] Connection to server got closed. Server will restart.
[Error - 2:22:22 PM] Server initialization failed.
Message: Pending response rejected since connection got disposed
Code: -32097
[Error - 2:22:22 PM] XML Support client: couldn't create connection to server.
Message: Pending response rejected since connection got disposed
Code: -32097
Error: Could not find or load main class org.eclipse.lemminx.XMLServerLauncher
Caused by: java.lang.ClassNotFoundException: org.eclipse.lemminx.XMLServerLauncher
[Info - 2:22:22 PM] Connection to server got closed. Server will restart.
[Error - 2:22:22 PM] Server initialization failed.
Message: Pending response rejected since connection got disposed
Code: -32097
[Error - 2:22:22 PM] XML Support client: couldn't create connection to server.
Message: Pending response rejected since connection got disposed
Code: -32097
Error: Could not find or load main class org.eclipse.lemminx.XMLServerLauncher
Caused by: java.lang.ClassNotFoundException: org.eclipse.lemminx.XMLServerLauncher
[Info - 2:22:24 PM] Connection to server got closed. Server will restart.
[Error - 2:22:24 PM] Server initialization failed.
Message: Pending response rejected since connection got disposed
Code: -32097
[Error - 2:22:24 PM] XML Support client: couldn't create connection to server.
Message: Pending response rejected since connection got disposed
Code: -32097
[Error - 2:22:24 PM] Restarting server failed
Message: Pending response rejected since connection got disposed
Code: -32097
Error: Could not find or load main class org.eclipse.lemminx.XMLServerLauncher
Caused by: java.lang.ClassNotFoundException: org.eclipse.lemminx.XMLServerLauncher
[Info - 2:22:24 PM] Connection to server got closed. Server will restart.
[Error - 2:22:24 PM] Server initialization failed.
Message: Pending response rejected since connection got disposed
Code: -32097
[Error - 2:22:24 PM] XML Support client: couldn't create connection to server.
Message: Pending response rejected since connection got disposed
Code: -32097
[Error - 2:22:24 PM] Restarting server failed
Message: Pending response rejected since connection got disposed
Code: -32097
Error: Could not find or load main class org.eclipse.lemminx.XMLServerLauncher
Caused by: java.lang.ClassNotFoundException: org.eclipse.lemminx.XMLServerLauncher
[Error - 2:22:25 PM] Connection to server got closed. Server will not be restarted.
[Error - 2:22:25 PM] Server initialization failed.
Message: Pending response rejected since connection got disposed
Code: -32097
[Error - 2:22:25 PM] XML Support client: couldn't create connection to server.
Message: Pending response rejected since connection got disposed
Code: -32097
[Error - 2:22:25 PM] Restarting server failed
Message: Pending response rejected since connection got disposed
Code: -32097

Extension version: 0.27.2024111708
VS Code version: Code 1.95.3 (f1a4fb101478ce6ec82fe9627c43efbf9e98c813, 2024-11-13T14:50:04.152Z)
OS version: Windows_NT x64 10.0.22631
Modes:

System Info

Item	Value
CPUs	12th Gen Intel(R) Core(TM) i7-1265U (12 x 2688)
GPU Status	2d_canvas: enabled canvas_oop_rasterization: enabled_on direct_rendering_display_compositor: disabled_off_ok gpu_compositing: enabled multiple_raster_threads: enabled_on opengl: enabled_on rasterization: enabled raw_draw: disabled_off_ok skia_graphite: disabled_off video_decode: enabled video_encode: enabled vulkan: disabled_off webgl: enabled webgl2: enabled webgpu: enabled webnn: disabled_off
Load (avg)	undefined
Memory (System)	15.69GB (1.57GB free)
Process Argv
Screen Reader	no
VM	0%

[JavorszkyGaborOrianaWorld]

Maybe the issue caused by the accented characters in the path?

My home is: c:\User\JávorszkyGábor (created by default the Microsoft EntraID joined Windows), so I cannot change it.
I've found a native.encoding setting on the internet, but I don't know where to set it. (Sorry, my Java knowledge is low.)

[angelozerr]

Maybe the issue caused by the accented characters in the path?

My home is: c:\User\JávorszkyGábor (created by default the Microsoft EntraID joined Windows), so I cannot change it.
I've found a native.encoding setting on the internet, but I don't know where to set it. (Sorry, my Java knowledge is low.)

Your are the first person who has this problem.

As you said I suspect the problem comes from encoding path, but we use native path glob support to do that.

@datho7561 have you some idea about this problem?

[datho7561]

I was able to reproduce the issue by creating a new Windows user with accents in the path. I can look into it if you would like

[angelozerr]

It would be very great!

[datho7561]

@JavorszkyGaborOrianaWorld one potential workaround is to use the binary. If you set "xml.server.preferBinary": true in VS Code's settings.json, this will use the binary.

Actually resolving the problem is a bit more complicated. I took some time to study this problem, and it seems like it's a java bug, so I don't know how much we can do.

My language on Windows is set to English. If I try to launch a java program with Cyrillic in the path it won't work. e.g.
java -cp 'C:\Users\Девід\Documents\vscode-xml\server\org.eclipse.lemminx-0.28.0-uber.jar' org.eclipse.lemminx.XMLServerLauncher doesn't work
java -jar 'C:\Users\Девід\Documents\vscode-xml\server\org.eclipse.lemminx-0.28.0-uber.jar' also doesn't work.

However, if I cd into the directory containing the jar and pass it as a relative path, this works. eg.
cd C:\Users\Девід\Documents\vscode-xml\server; java -cp 'org.eclipse.lemminx-0.28.0-uber.jar' org.eclipse.lemminx.XMLServerLauncher should work.
This is one potential workaround; we can set the cwd for the command to be run in the server launch options, which is similar to cd'ing into the directory before running the command.

The limitation to this workarond is if the user wants to extend the functionality of lemminx using the service provider interface by adding additional jars to the path (eg. lemminx-maven). The user is expected to specify those paths as absolute paths, so if any part of the path contains non-ASCII characters, java won't be able to find those jars.

[JavorszkyGaborOrianaWorld]

@datho7561 Thank for your help, the workaround is worked for me.