How to stop looping process "Send Classpath Notification" on STS

Question

I Use STS 4.3.1 RELEASE in Window 10 Home.
When I use auto-complication in java or jsp file, it suddenly work slowly. ( My STS Min/Max memory 3000M)

In progress tab, "Send Classpath Notifications" process has stated and soon be increased a lot.
Then STS soon be conspicuously slow performance, and then has "no response" (with white state)

In fact, In 4.2 or lower than other version of STS, I didn't meet this issue.

Answer 1

Send ClassPath Notification can be reolved with any of the following modifications based on the problem.

Better approach is to try doing each step and check whether your issue is still persisting.

Fix:1

In most of the cases, quick restart of the STS or Eclipse will resolve the issue of continues Send ClassPath Notification

Fix:2

Updating the Version 4.2.2 to 4.2.1

Fix:3

Navigate to Windows => Preferences => Language Servers -> Spring Language Servers and try disabling them

Reference : https://github.com/spring-projects/sts4/issues/218

Answer 2

Closing the STS IDE Task from Task Manger in windows solved the issue for me