[jboss-jira] [JBoss JIRA] (JGRP-1845) Null pointer exception in Samsung Q1 using 3G connection

[Denis Lamela (JIRA)]

    [ https://issues.jboss.org/browse/JGRP-1845?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12971355#comment-12971355 ] 

Denis Lamela commented on JGRP-1845:
------------------------------------

Hello Bela Ban, I saw your solution in the source code. Thank you.

The problem occurs in JDK 6 and 7. The stack trace is:

java.lang.NullPointerException
    at java.net.NetworkInterface.getInterfaceAddresses(Unknown Source)
    at org.jgroups.stack.DiagnosticsHandler.bindToInterfaces(DiagnosticsHandler.java:211)
    at org.jgroups.stack.DiagnosticsHandler.start(DiagnosticsHandler.java:87)
    at org.jgroups.protocols.TP.start(TP.java:1210)
    at org.jgroups.protocols.TCP.start(TCP.java:82)
    at org.jgroups.stack.ProtocolStack.startStack(ProtocolStack.java:952)
    at org.jgroups.JChannel.startStack(JChannel.java:864)
    at org.jgroups.JChannel._preConnect(JChannel.java:527)
    at org.jgroups.JChannel.connect(JChannel.java:284)
    at org.jgroups.JChannel.connect(JChannel.java:275)

> Null pointer exception in Samsung Q1 using 3G connection
> --------------------------------------------------------
>
>                 Key: JGRP-1845
>                 URL: https://issues.jboss.org/browse/JGRP-1845
>             Project: JGroups
>          Issue Type: Bug
>    Affects Versions: 3.1, 3.2, 3.2.1, 3.2.2, 3.2.3, 3.2.4, 3.2.5, 3.2.6, 3.2.7, 3.2.8, 3.2.9, 3.2.10, 3.2.12, 3.2.13, 3.3, 3.3.1, 3.3.2, 3.3.3, 3.3.4, 3.3.5, 3.4, 3.4.1, 3.4.2, 3.4.3, 3.4.4
>         Environment: Samsung Q1 with Windows XP Tablet Edition and 3G connection. Java 6 or Java 7.
>            Reporter: Denis Lamela
>            Assignee: Bela Ban
>            Priority: Minor
>             Fix For: 3.3.6, 3.4.5, 3.5
>
>   Original Estimate: 1 hour
>  Remaining Estimate: 1 hour
>
> Null pointer exception in method "bindToInterfaces" of class "org.jgroups.stack.DiagnosticsHandler". The exception is thrown while executing "i.getInterfaceAddresses().isEmpty()". "i.getInterfaceAddresses()" returns null.
> This bug can be fixed checking if "i.getInterfaceAddresses()" returns null.



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