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Issue with permissions (classes_nocoops.jsa) #4238
Description
Relevant context:
This happens in a university setting, where all machines are running stock ubuntu 24.04.3 LTS. However, the homedir of every user is mounted from a server and, because of that, we cannot change the permissions of any file in the homedir (Every file is 755).
When installing the Java extension, it fails with the following error message:
2025-11-07 14:25:07.180 [error] [Window] Error: EACCES: permission denied, open '/home/ALUNOSFC/pes000/.vscode/extensions/.29c2353e-6605-4e6f-9a0f-0ebaa25de2d4/jre/21.0.8-linux-x86_64/lib/server/classes_nocoops.jsa'
2025-11-07 14:25:07.199 [error] [Window] EACCES: permission denied, open '/home/ALUNOSFC/pes000/.vscode/extensions/.29c2353e-6605-4e6f-9a0f-0ebaa25de2d4/jre/21.0.8-linux-x86_64/lib/server/classes_nocoops.jsa': Error: EACCES: permission denied, open '/home/ALUNOSFC/pes000/.vscode/extensions/.29c2353e-6605-4e6f-9a0f-0ebaa25de2d4/jre/21.0.8-linux-x86_64/lib/server/classes_nocoops.jsa'
It is not clear to me what is the role of the non-default permissions of this file. Is it possible for this class not to require different permissions?
Activity
fbricon commentedon Nov 7, 2025
Mmm on my Mac the file has 444 permissions
you could try to either:
java.jdt.ls.appcds.enabled)java.jdt.ls.java.home) (Java 21+)fbricon commentedon Nov 17, 2025
@alcides care to share how you resolved this?
alcides commentedon Nov 21, 2025
The universal vsix worked in our scenario, since we already had an JDK (21) installed on those machines.
Thank you so much for the help.