RFR: java/net/MulticastSocket/SetGetNetworkInterfaceTest.java throws java.net.SocketException: Cannot assign requested address

[Chris Hegarty]

Thanks Mark,

On 2 Jan 2014, at 16:26, Mark Sheppard <mark.sheppard at oracle.com> wrote:

> Hi Alan,
>  added an ExceptionDescribe to native code and an -Xcheck:jni to the cmd line options to produce the
> following:
> 
> WARNING in native method: JNI call made with exception pending
>        at java.net.PlainDatagramSocketImpl.socketSetOption(Native Method)
>        at java.net.AbstractPlainDatagramSocketImpl.setOption(AbstractPlainDatagramSocketImpl.java:309)
>        at java.net.MulticastSocket.setNetworkInterface(MulticastSocket.java:554)
>        - locked <0x000000076c8c78e8> (a java.lang.Object)
>        at SetGetNetworkInterfaceTest.main(SetGetNetworkInterfaceTest.java:54)
>        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
>        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>        at java.lang.reflect.Method.invoke(Method.java:483)
>        at com.sun.javatest.regtest.MainWrapper$MainThread.run(MainWrapper.java:94)
>        at java.lang.Thread.run(Thread.java:744)
> 
> and ExceptionDescribe outputs
> 
> Exception in thread "MainThread" java.net.SocketException: Cannot assign requested address
>        at java.net.PlainDatagramSocketImpl.socketSetOption(Native Method)
>        at java.net.AbstractPlainDatagramSocketImpl.setOption(AbstractPlainDatagramSocketImpl.java:309)
>        at java.net.MulticastSocket.setNetworkInterface(MulticastSocket.java:554)
>        at SetGetNetworkInterfaceTest.main(SetGetNetworkInterfaceTest.java:54)
>        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
>        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>        at java.lang.reflect.Method.invoke(Method.java:483)
>        at com.sun.javatest.regtest.MainWrapper$MainThread.run(MainWrapper.java:94)
>        at java.lang.Thread.run(Thread.java:744)

This is what I would expect to see.

The changes look good to me. If the IPv6 version completes successfully then there clearly is no reason to throw an exception. If it does not, then there will be a new exception on the stack.


-Chris.


> 
> 
> regards
> Mark
> 
> On 29/12/2013 17:05, Alan Bateman wrote:
>> On 23/12/2013 18:21, Mark Sheppard wrote:
>>> Hi,
>>>   Please oblige and review the following changes:
>>> 
>>> http://cr.openjdk.java.net/~msheppar/8027903/webrev/
>>> 
>>> which address the issue:
>>> 
>>> https://bugs.openjdk.java.net/browse/JDK-8027903
>>> 
>>> The test failure was found to be due to an interface configured with an IPv6 address and
>>> no IPv4 address. The native code was calling mcast_set_if_by_addr_v4(...), which
>>> raised an exception.
>> Do you know what the exception is? Just wondering what exception is being cleared/ignored.
>> 
>> -Alan
>