Merge "Lazy load the allocation of Slog message formatting objects." into sc-dev

 */

public final class Slog {

    @GuardedBy("sMessageBuilder")

    private static final StringBuilder sMessageBuilder = new StringBuilder();

    @GuardedBy("Slog.class")

    private static StringBuilder sMessageBuilder;

    @GuardedBy("sMessageBuilder")

    private static final Formatter sFormatter = new Formatter(sMessageBuilder, Locale.ENGLISH);

    @GuardedBy("Slog.class")

    private static Formatter sFormatter;

    private Slog() {

    }

    }

    private static String getMessage(String format, @Nullable Object... args) {

        synchronized (sMessageBuilder) {

        synchronized (Slog.class) {

            if (sMessageBuilder == null) {

                // Lazy load so they're not created if not used by the process

                sMessageBuilder = new StringBuilder();

                sFormatter = new Formatter(sMessageBuilder, Locale.ENGLISH);

            }

            sFormatter.format(format, args);

            String message = sMessageBuilder.toString();

            sMessageBuilder.setLength(0);