IntelliJ IDEA has an inspection that checks for spelling. In the analysis overview, I can see how many spelling mistakes were found, e.g. 12 typos found. In the
12 typos found
If you want to fix all typos from the project, you can list all of them and iterate through them using double click (or F4 to open the source):
Analyze > Run Inspection by Name...
Type "Typo"
You will be able to see a list containing all typos grouped by file: