private static byte[] mutate(byte[] in, int len, double probability, long position)
throws IOException {
byte[] ret = in;
if (Math.abs(Util.getRnd()) < probability) {
if (len > 2) {
write(" Mutating byte at position " + position);
double rnd = Math.abs(Util.getRnd());
int l = (int) (Math.abs(Util.getRnd()) * len);
if (rnd < 0.3333333) {
write(" " + l + " bytes will be removed");
len -= l;
} else if (rnd > 0.66666666) {
write(" " + l + " byte will be added");
len += l;
}
ret = mutate(in, len);
}
}
return ret;
}
protected synchronized String buildNewOwnerId(String role) {
return role + "#" + Util.getRndLong();
}