Describe the Bug
Issue Description:
After launching Cursor, I noticed it spawns 60-70 processes immediately, causing my CPU usage to reach 100%. The OpenJDK Platform Binary processes are consuming over 70% of the CPU (e.g., 32.4% and 24.4% in the task manager), even though I haven’t run any code or interacted with the AI features. This happens right after startup, with no additional workload. I provided a screenshot showing the task manager details, including multiple OpenJDK Platform Binary and Cursor processes.
I attempted to resolve this by configuring the Red Hat Java plugin to use my locally installed JDK 17 (set "java.jdt.ls.java.home": "D:\\Program Files\\Java\\jdk-17" in the settings.json file), but the issue persists. The processes still point to the bundled OpenJDK (located at C:\Users\admin\.cursor\extensions\redhat.java-1.43.1-win32-x64\jre\21.0.7-win32-x86_64\bin), and CPU usage remains excessively high. Disabling the plugin or limiting CPU affinity temporarily reduces the load, but the problem returns on restart.
System Details:
- OS: [Your OS version, e.g., Windows 10/11]
- Cursor Version: [Your Cursor version]
- Java Version: JDK 17 (installed at
D:\Program Files\Java\jdk-17)
Steps Taken:
- Configured the Red Hat Java plugin to use my local JDK 17.
- Checked task manager to confirm process paths.
- Disabled the plugin and tested CPU usage.
- Adjusted CPU affinity to limit process usage.
Request:
Please advise if there’s a way to force Cursor to use my local JDK instead of the bundled OpenJDK, or if this is a bug related to excessive process spawning. Any guidance or fixes would be appreciated.
I am even unable to move my mouse.I don’t know where the problem lies; OpenJDK is just my guess as to where the issue might be.
Steps to Reproduce
restart it,I use cursor to develop java project
Screenshots / Screen Recordings
Operating System
Windows 10/11
Current Cursor Version (Menu → About Cursor → Copy)
Version: 1.2.4 (user setup)
VSCode Version: 1.99.3
Commit: a8e95743c5268be73767c46944a71f4465d05c90
Date: 2025-07-10T17:09:01.383Z
Electron: 34.5.1
Chromium: 132.0.6834.210
Node.js: 20.19.0
V8: 13.2.152.41-electron.0
OS: Windows_NT x64 10.0.19045
Does this stop you from using Cursor
Sometimes - I can sometimes use Cursor