[jboss-jira] [JBoss JIRA] (AS7-6328) SingletonService fails with NullPointerException when bound to 0.0.0.0

[Patrik Varga (JIRA)]

Patrik Varga created AS7-6328:
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             Summary: SingletonService fails with NullPointerException when bound to 0.0.0.0 
                 Key: AS7-6328
                 URL: https://issues.jboss.org/browse/AS7-6328
             Project: Application Server 7
          Issue Type: Feature Request
          Components: Clustering
    Affects Versions: 7.1.2.Final (EAP)
         Environment: OS independent, reproduces on Ubuntu 12.10 and Windows XP.
            Reporter: Patrik Varga
            Assignee: Paul Ferraro
            Priority: Critical


Assume that you have working deployment with a custom MSC service wrapped into a SingletonService. When you are trying to access the value of the SingletonService, the SingletonService.getValue() call fails with NullPointerException iff the JBoss instance is listening on all interfaces, i.e. it is bound to 0.0.0.0 by using <inet-address value="0.0.0.0"/> or <any-address/> under <interface name="public"> in standalone-full-ha.xml.

It works when specifying an explicit IP.

Example: try the cluster-ha-singleton jboss-as-quickstart

Top of the stack trace:

java.lang.NullPointerException
  at org.jboss.as.clustering.singleton.SingletonService.getValue(SingletonService.java:176)
  at org.jboss.as.clustering.singleton.SingletonService.getValue(SingletonService.java:53)
  at org.jboss.msc.service.ServiceControllerImpl.getValue(ServiceControllerImpl.java:1203)
  [...]

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