How to delete the project build cache folder of Java and Kotlin by IntelliJ IDEA in VS Code

Question

Just found that the Java and Kotlin by IntelliJ IDEA extension consumed a lot of space after opening several projects on my hard drive. How to free up this space?

Answer

First, please locate the path of the workspace, the path can be found in the log output console: [Info] Log file: /Users/<USERNAME>/Library/Application Support/Code/User/workspaceStorage/<WORKSPACE_ID>/JetBrains.intellij/system/log/intellij-server.log

Then quit VS Code, navigate to the directory, and delete all files within it.

These folder paths are listed here:

Windows: C:\Users\username\AppData\Roaming\Code\User\workspaceStorage\****uuid_code*****\JetBrains.intellij-server

macOS: /Users/username/Library/Application Support/Code/User/workspaceStorage/****uuid_code*****/JetBrains.intellij-server

Linux: /home/username/.config/Code/User/workspaceStorage/****uuid_code*****/JetBrains.intellij-server/

See also: How to delete the cached index and stored EULA consent for Java and Kotlin by IntelliJ IDEA in VS Code