public static long seed() {
		return seed(System.nanoTime());
	}
Calculating a 64-bit seed value which can be used for initializing
PRNGs. This method uses a combination of {@code System.nanoTime()}
and {@code new Object().hashCode()} calls to create a reasonable safe
seed value:

{@snippet lang="java":
public static long seed() {
    return seed(System.nanoTime());
}
}

This method passes all the statistical tests of the
<a href="http://www.phy.duke.edu/~rgb/General/dieharder.php">
dieharder</a> test suite&mdash;executed on a linux machine with
JDK version 1.7. <em>Since there is no prove that this will the case
for every Java version and OS, it is recommended to only use this
method for seeding other PRNGs.</em>

@see #seed(long)

@return the random seed value.
jenetics/src/main/java/io/jenetics/internal/math/Randoms.java