I see dead code!

import com.android.server.autofill.ui.PendingUi;

import java.io.PrintWriter;

import java.io.StringWriter;

import java.util.ArrayList;

import java.util.Arrays;

import java.util.Collection;

        requestLog.addTaggedData(tag, value);

    }

    private static String requestLogToString(@NonNull LogMaker log) {

        final StringWriter sw = new StringWriter();

        final PrintWriter pw = new PrintWriter(sw);

        dumpRequestLog(pw, log);

        pw.flush();

        return sw.toString();

    }

    private void wtf(@Nullable Exception e, String fmt, Object...args) {

        final String message = String.format(fmt, args);

        mWtfHistory.log(message);