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

[Mark Sheppard]

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)


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