Art: Verification of X took Y ms

Question

I've got a warning in my logcat:

W/art: Verification of void com.myapp.LoginFragment$override.lambda$logIn$5(com.myapp.LoginFragment, java.lang.Throwable) took 217.578ms 

Here's the code:

subscription = viewModel.logIn()             .observeOn(AndroidSchedulers.mainThread())             .subscribe(                this::showStudioSelection,                error -> {                     ErrorResponse errorResponse = ErrorResponseFactory.create(error);                      if (errorResponse.code() == ApiResult.BAD_REQUEST) {                        Snackbar.make(getView(), R.string.login_bad_credentials, Snackbar.LENGTH_LONG)                             .setAction(android.R.string.ok, v -> {})                             .show();                     } else {                         Snackbar.make(getView(), "Unknown error " + errorResponse.code(), Snackbar.LENGTH_LONG)                             .setAction(android.R.string.ok, v -> {})                             .show();                     }                     viewModel.updateLoginButtonState();                  }             ); 

220ms is quite a lot (and I feel like I'm noticing a lag on startup of that Fragment).

I'm using RxJava and retrolambda, but this is not the only spot where this message pops up so I don't think it's directly related.

How can I influence the verification time? Is it even worth it?

It seems like it has something to do with cyclomatic complexity, since I could get rid of the waring by removing the Snackbar.make calls in the if with some more dry code:

String errorMessage; if (errorResponse.code() == ApiResult.BAD_REQUEST) {     errorMessage = getString(R.string.login_bad_credentials); } else {     errorMessage = "Unknown error " + errorResponse.code(); } 

Answer 1

For anyone in year 2020 and beyond looking for the solution -- Android 11 has the following setting in the Developer options:

It's ON by default. Turn it OFF to get rid of the annoying delays every time app is launched when debugging.