Prevent GC crashes when processing too large strings too quickly

StringThrottle.java

/**
 * handles manual calls to GC + pause in case too much memory is being allocated too quickly to Strings in iOS
 */
public class StringThrottle {
    private static long lastTimeSafeStringCreated = 0;
    private static long accumulatedSizeInLast4Secs = 0;
    private static int SafeStringDetectionPeriod = 4000;
    private static int SafeStringPostGCSleep = 400;
    private static int MaxSafeStringSizeB4GC = 5000000;

    /**
     * Calls GC and pauses if needed
     * @param string
     */
    public static void run(String string){
        if(com.codename1.ui.CN.getPlatformName().equals("ios")) {
            if (lastTimeSafeStringCreated == 0)
                lastTimeSafeStringCreated = System.currentTimeMillis();
            if (System.currentTimeMillis() - lastTimeSafeStringCreated < SafeStringDetectionPeriod)
                accumulatedSizeInLast4Secs += string.length();
            else
                accumulatedSizeInLast4Secs = string.length();
            if (accumulatedSizeInLast4Secs > MaxSafeStringSizeB4GC) {
                accumulatedSizeInLast4Secs = 0;
                System.gc();
                try {
                    Thread.sleep(SafeStringPostGCSleep);
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
            }
            lastTimeSafeStringCreated = System.currentTimeMillis();
        }
    }
}