'STS intellisense stops working after some time
Solution 1:[1]
Even though Spring Tools 4.8 sounds like a relatively old version, maybe you are hitting this issue:
https://github.com/spring-projects/sts4/issues/750
It would be great if you could join the conversation for that issue on GitHub and provide more details in order to find out whether you are indeed hitting the same issue or not. Before you capture thread dumps, please make sure you update to the latest release (4.14.0).
To workaround this issue in the meantime in Eclipse, you can go to the Preferences -> Java -> Editor -> Content-Assist -> Advanced and de-activate the Language Server Proposals in that list. In case my guesswork here is correct, that should workaround the issue.
Sources
This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.
Source: Stack Overflow
| Solution | Source |
|---|---|
| Solution 1 | Martin Lippert |

