From what I read about Error Prone, I see that it will actually suggest fixes for style errors in your code. i.e from https://errorprone.info/docs/installation:
ERROR: example/myproject/BUILD:29:1: Java compilation in rule '//example/myproject:hello'
examples/maven/error_prone_should_flag/src/main/java/Main.java:20: error: [DeadException] Exception created but not thrown
new Exception();
^
(see http://errorprone.info/bugpattern/DeadException)
Did you mean 'throw new Exception();'?
1 error
What I do not see, is if there is a way to auto-apply these suggested changes. I am running error-prone from the command line. Any and all help is appreciated! Let me know if I can clarify anything.
There is not a way to auto-apply them directly.
However, you can get Error Prone to spit out a patch file containing the fixes. Refer to the patching documentation:
To apply the suggested fixes for checks built in to the Error Prone compiler, you’ll add two compiler flags to your compiler invocation:
-XepPatchChecks:MissingOverride,DefaultCharset,DeadException -XepPatchLocation:/full/path/to/your/source/root...
You can inspect the patch file directly, and apply it to your source with:
cd /full/path/to/your/source/root patch -p0 -u -i error-prone.patch
(Note the disclaimer about this being experimental)