RFR: 8219585: [TESTBUG] sun/management/jmxremote/bootstrap/JMXInterfaceBindingTest.java passes trivially when it shouldn't

[Sharath Ballal]

Nit: 
you may want to change this message 
           "Ignoring manual test since no more than one IPs are configured for 'localhost'" 
to       "Ignoring manual test since no non loopback IPs are configured for 'localhost'"


Thanks,
Sharath


-----Original Message-----
From: Severin Gehwolf [mailto:sgehwolf at redhat.com] 
Sent: Friday, February 22, 2019 8:34 PM
To: serviceability-dev
Subject: RFR: 8219585: [TESTBUG] sun/management/jmxremote/bootstrap/JMXInterfaceBindingTest.java passes trivially when it shouldn't

Hi!

Bug: https://bugs.openjdk.java.net/browse/JDK-8219585

Could somebody please review this trivial testbug. For a config like [1] the logic prior JDK-8145982 returned this list for
getAddressesForLocalHost():

[localhost/127.0.0.1, localhost/192.168.1.18, localhost/0:0:0:0:0:0:0:1]

Post JDK-8145982, getAddressesForLocalHost() returns:

[localhost/192.168.1.18]

The fix is trivial. Just adjust the condition for as to when the test should actually trivially pass:

diff --git a/test/jdk/sun/management/jmxremote/bootstrap/JMXInterfaceBindingTest.java b/test/jdk/sun/management/jmxremote/bootstrap/JMXInterfaceBindingTest.java
--- a/test/jdk/sun/management/jmxremote/bootstrap/JMXInterfaceBindingTest.java
+++ b/test/jdk/sun/management/jmxremote/bootstrap/JMXInterfaceBindingTes
+++ t.java
@@ -176,8 +176,8 @@
     }
 
     public static void main(String[] args) {
-        List<InetAddress> addrs = getAddressesForLocalHost();
-        if (addrs.size() < 2) {
+        List<InetAddress> addrs = getNonLoopbackAddressesForLocalHost();
+        if (addrs.size() < 1) {
             System.out.println("Ignoring manual test since no more than one IPs are configured for 'localhost'");
             return;
         }
@@ -186,7 +186,7 @@
         System.out.println("All tests PASSED.");
     }
 
-    private static List<InetAddress> getAddressesForLocalHost() {
+    private static List<InetAddress> 
+ getNonLoopbackAddressesForLocalHost() {
 
         try {
             return NetworkInterface.networkInterfaces()


Testing: Manual testing on local setup. jdk/submit (currently running)

Thanks,
Severin


[1] $ grep localhost /etc/hosts | grep -v '::'
127.0.0.1    localhost localhost.localdomain localhost4 localhost4.localdomain4
192.168.1.18 localhost