package org.kne.cloud.network.nathole; import java.io.IOException; import java.net.InetAddress; import java.util.Arrays; public class ICMPNatholeTest { public static void main(String[] args) throws IllegalStateException, IOException { } public static String toString(byte[] a) { if (a == null) return "null"; int iMax = a.length - 1; if (iMax == -1) return "[]"; StringBuilder b = new StringBuilder(); b.append('['); for (int i = 0; ; i++) { b.append( Integer.toString(a[i]&0xff,16)); if (i == iMax) return b.append(']').toString(); b.append(", "); } } }