[NETBEANS-5565] LSP sub processes increases while opening multiple git diff tabs

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 12.3
• Component/s: lsp
• Labels: pull-request-available

Environment

Product Version: Apache NetBeans IDE 12.3
Java: 11.0.2; Java HotSpot(TM) 64-Bit Server VM 11.0.2+9-LTS
Runtime: Java(TM) SE Runtime Environment 11.0.2+9-LTS
System: Windows 10 version 10.0 running on amd64; Cp1252; de_DE (nb)
User directory: C:\Users\Chris\AppData\Roaming\Netbeans\12.3
Cache directory: C:\Users\Chris\AppData\Local\NetBeans\Cache\12.3

• Assignee: Jan Lahoda
• Reporter: Christian Lenz
• Created: 09/Apr/21 15:10
• Updated: 17/Jan/22 20:36

Description

While investigating the situation, why the language server for TypeScript opens on an core module of NetBeans "webcommon\typescript.editor" I made further investigations. I think I understand the stuff better now. the language server for typescript runs, because of the typescript template file. So when I open a project with TS files or a TS file from a different project, it will map to the mimeType and the project. Everything is fine.

But one problem that I encountered is when I change a TS file and make a Git -> Show Changes on the tab, the changes window opens and when I double click, it will open the changes and it will create a new node sub process of this, which never stops/killed and it does it everytime I double click on the changes.

Steps to reproduce:

• Open the NetBeans core module webcommon\typescript.editor
• Have a look into the Taskmanager or process explorer
• NetBeans opens 1 instance with 2 sub node processes and starts the typescript language server.
• Make changes in the typescript file
• Right click on the tab of the typescript file
• Go to git -> show changes
• Diff window opens
• Double click on the changed TS file (entry inside of the git diff window)
• Have a look into the task manager and you will see, it will open a new node sub process and starts the language server for ts again.
• Repeat this as often as you want.
• We get more and more sub process of this.

I think this here is related to it, somehow: https://issues.apache.org/jira/browse/NETBEANS-5142

Issue Links

• links to: GitHub Pull Request #2876