IllegalArgumentException from Random.nextInt

[MiroLehteva]

Hi,

I've implemented a particle animation using this library, but I keep getting this exceptions from time to time. Here is the stacktrace from the exception I got from the exception.

E/AndroidRuntime﹕ FATAL EXCEPTION: Timer-28
java.lang.IllegalArgumentException
at java.util.Random.nextInt(Random.java:187)
at com.plattysoft.leonids.ParticleSystem.getFromRange(ParticleSystem.java:536)
at com.plattysoft.leonids.ParticleSystem.activateParticle(ParticleSystem.java:524)
at com.plattysoft.leonids.ParticleSystem.onUpdate(ParticleSystem.java:544)
at com.plattysoft.leonids.ParticleSystem.access$1(ParticleSystem.java:539)
at com.plattysoft.leonids.ParticleSystem$1.run(ParticleSystem.java:363)
at java.util.Timer$TimerImpl.run(Timer.java:284)

I did search trough Random class and I found only one IllegalArgumentException from the whole class in the method nextInt(int n).

   /**
     * Returns a pseudo-random uniformly distributed {@code int}
     * in the half-open range [0, n).
     */
    public int nextInt(int n) {
        if (n <= 0) {
           throw new IllegalArgumentException("n <= 0: " + n);
        }
        if ((n & -n) == n) {
            return (int) ((n * (long) next(31)) >> 31);
        }
        int bits, val;
        do {
            bits = next(31);
            val = bits % n;
        } while (bits - val + (n - 1) < 0);
        return val;
    }

[plattysoft]

The range is always from the smaller number to the larger one, and both numbers must be positive.
The direction is configured by using the angle.

Hope this helps.