Android 2.3.5: bad performance due to date formatting in DateUtil

[bjking2]

 if (FORMAT_RFC_3339.get(0).equals(format)) {
    formatter = new InternetDateFormat(TIMEZONE_GMT);
} else {
    formatter = new java.text.SimpleDateFormat(format, java.util.Locale.US);
    formatter.setTimeZone(TIMEZONE_GMT);
}

The line "SimpleDateFormat" causes a really bad performance android devices:
01-04 18:56:05.550 15660-17358/com.XXXXX W/System.err: Loaded time zone names for en_US in 858ms.

On old devices it may take even longer.

Possible solutions to fix this issue are discusses in:
http://stackoverflow.com/questions/3905545/android-load-timezone-too-long-loaded-time-zone-names-for-en-us

[jlouvel]

Thanks for reporting this issue. An addition related discussion here:
http://stackoverflow.com/questions/8881142/simpledateformat-takes-too-long-when-the-time-zone-is-included

@bjking2 Would you be able to propose a PR to workaround this in RF/Android edition?

[thboileau]

not reproduced on Nexus 4 + Android 5.1.1
It takes about 8ms.