On Thu, 18 Feb 2021 10:12:30 GMT, Conor Cleary <ccle...@openjdk.org> wrote:

>>> I think that the changes are mostly good. I would like to try them out on 
>>> my local system and our internal buildAndTest system.
>> 
>> Chris, were you able to test the patch? 
>> 
>> Also if anyone has an idea as to the best way to unit test this, let me 
>> know; are there any other unit tests where the build can become a root user?
>
>> > I think that the changes are mostly good. I would like to try them out on 
>> > my local system and our internal buildAndTest system.
>> 
>> Chris, were you able to test the patch?
>> 
>> Also if anyone has an idea as to the best way to unit test this, let me 
>> know; are there any other unit tests where the build can become a root user?
> 
> Hi @jamieletual, I'm currently investigating any possibilities in testing for 
> this change. In the meantime however it could be good to change the title of 
> the PR to "8257235: InetAddress.isReachable should use non-privileged ICMP 
> sockets when available" as it appears to be an Integration blocker (see 
> Integration Blocker section of first PR comment).

Test failures related to these change are seen in the following areas after 
tier 1-3 test runs and runs across net & nio packages:
 
**test/jdk/java/net/Inet4Address/PingThis.java (macosx-x64, linux-x64)**
----------System.out:(1/34)----------
localhost/127.0.0.1  is reachable
----------System.err:(12/791)----------
java.lang.RuntimeException: Unexpected exception:java.net.SocketException: 
Can't assign requested address
        at IsReachableViaLoopbackTest.main(IsReachableViaLoopbackTest.java:36)
        at 
java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at 
java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:78)
        at 
java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.base/java.lang.reflect.Method.invoke(Method.java:566)
        at 
com.sun.javatest.regtest.agent.MainActionHelper$AgentVMRunnable.run(MainActionHelper.java:298)
        at java.base/java.lang.Thread.run(Thread.java:831)

**test/jdk/java/net/InetAddress/IsReachableViaLoopbackTest.java (macosx-x64):**
----------System.out:(1/25)----------
The target ip is 0.0.0.0
----------System.err:(16/981)----------
java.net.SocketException: Socket is not connected
        at java.base/java.net.Inet6AddressImpl.isReachable0(Native Method)
        at 
java.base/java.net.Inet6AddressImpl.isReachable(Inet6AddressImpl.java:94)
        at java.base/java.net.InetAddress.isReachable(InetAddress.java:548)
        at java.base/java.net.InetAddress.isReachable(InetAddress.java:507)
        at PingThis.main(PingThis.java:66)
        at 
java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at 
java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:78)
        at 
java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.base/java.lang.reflect.Method.invoke(Method.java:566)
        at 
com.sun.javatest.regtest.agent.MainActionHelper$AgentVMRunnable.run(MainActionHelper.java:298)
        at java.base/java.lang.Thread.run(Thread.java:831)

Both tests call the native isReachable0 and it seems related to the version in 
Inet6AddressImpl.c

-------------

PR: https://git.openjdk.java.net/jdk/pull/1502

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