While not exactly a bug, but if you run this code in Java:<p><pre><code> for(int i = 0; i< 100; i++){
Random random = new Random(i);
System.out.println(random.nextDouble());
}</code></pre>
It prints the following sequence (at least on JDK 7 and Win 7):<p><pre><code> 0.730967787376657
0.7308781907032909
0.7311469360199058
0.731057369148862
0.7306094602878371
0.730519863614471
0.7307886238322471
0.7306990420600421
0.7302511331990172
0.7301615514268123
</code></pre>
I know that you're not supposed to recreate the Random-instance like that but it's still a bit odd that the initial values in each sequence are so similar to each other.