42 lines
1.4 KiB
Java
42 lines
1.4 KiB
Java
import java.io.*;
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import java.net.*;
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import java.util.*;
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/**
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* @test
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* @bug 8135305
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* @key intermittent
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* @summary ensure we can't ping external hosts via loopback if
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*/
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public class IsReachableViaLoopbackTest {
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public static void main(String[] args) {
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try {
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InetAddress addr = InetAddress.getByName("localhost");
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InetAddress remoteAddr = InetAddress.getByName("bugs.openjdk.java.net");
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if (!addr.isReachable(10000))
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throw new RuntimeException("Localhost should always be reachable");
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NetworkInterface inf = NetworkInterface.getByInetAddress(addr);
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if (inf != null) {
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if (!addr.isReachable(inf, 20, 10000)) {
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throw new RuntimeException("Localhost should always be reachable");
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} else {
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System.out.println(addr + " is reachable");
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}
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if (remoteAddr.isReachable(inf, 20, 10000)) {
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throw new RuntimeException(remoteAddr + " is reachable");
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} else {
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System.out.println(remoteAddr + " is NOT reachable");
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}
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} else {
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System.out.println("inf == null");
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}
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} catch (IOException e) {
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throw new RuntimeException("Unexpected exception:" + e);
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}
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System.out.println("IsReachableViaLoopbackTest EXIT");
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}
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}
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