[SOLVED] Trying to use TCPPING for JGroups in a Infinispan env fail as address is Transport.getAddress() is null

I am trying to setup a replicated Infinispan embedded cache.

When using the demo code for programatically setup the cache, everything works, as expected (https://github.com/infinispan/infinispan-simple-tutorials/tree/main/infinispan-embedded/cache-replicated)

Now, I want to configure it to use a defined list of initial hosts.

So, I changed slightly the code to be :

public class TestGenerate
{
    public static void main(String[] args) throws InterruptedException
    {
        // Setup up a clustered cache manager
        GlobalConfigurationBuilder global = GlobalConfigurationBuilder.defaultClusteredBuilder();
        GlobalConfiguration globalConfiguration = global.transport().defaultTransport().addProperty("configurationFile", "jgroups.xml").build();
        // Initialize the cache manager
        DefaultCacheManager cacheManager = new DefaultCacheManager(globalConfiguration);
        // Create a replicated synchronous configuration
        ConfigurationBuilder builder = new ConfigurationBuilder();
        builder.clustering().cacheMode(CacheMode.REPL_SYNC);
        Configuration cacheConfig = builder.build();
        // Create a cache
        Cache<String, String> cache = cacheManager.administration()
                .withFlags(CacheContainerAdmin.AdminFlag.VOLATILE)
                .getOrCreateCache("cache", cacheConfig);

        // Store the current node address in some random keys
        for(int i=0; i < 10; i++) {
            cache.put(UUID.randomUUID().toString(), cacheManager.getNodeAddress());
        }
        // Display the current cache contents for the whole cluster
        System.out.println("--------------- whole cluster");
        cache.entrySet().forEach(entry -> System.out.printf("%s = %s\n", entry.getKey(), entry.getValue()));
        // Display the current cache contents for this node
        System.out.println("--------------- this node");
        cache.getAdvancedCache().withFlags(Flag.SKIP_REMOTE_LOOKUP)
                .entrySet().forEach(entry -> System.out.printf("%s = %s\n", entry.getKey(), entry.getValue()));


        Thread.currentThread().join();
    }
}

My JGroups configuration file is very minimal :

<config xmlns="urn:org:jgroups"
        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xsi:schemaLocation="urn:org:jgroups http://www.jgroups.org/schema/jgroups.xsd">

   <TCP bind_port="7950" />
   <TCPPING initial_hosts="192.168.42.100[7950],192.165.10.52[7950]"/>
</config>

The problem is that the cache doesn't start :

sept. 21, 2021 1:49:01 PM org.infinispan.factories.GlobalComponentRegistry preStart
INFO: ISPN000128: Infinispan version: Infinispan 'Taedonggang' 12.1.7.Final
sept. 21, 2021 1:49:01 PM org.infinispan.marshall.core.impl.DelegatingUserMarshaller start
INFO: ISPN000556: Starting user marshaller 'org.infinispan.commons.marshall.ImmutableProtoStreamMarshaller'
sept. 21, 2021 1:49:01 PM org.infinispan.remoting.transport.jgroups.JGroupsTransport start
INFO: ISPN000078: Starting JGroups channel ISPN
sept. 21, 2021 1:49:02 PM org.infinispan.remoting.transport.jgroups.JGroupsTransport startJGroupsChannelIfNeeded
INFO: ISPN000079: Channel ISPN local address is null, physical addresses are [192.168.42.100:7950]
sept. 21, 2021 1:49:02 PM org.infinispan.remoting.transport.jgroups.JGroupsTransport stop
INFO: ISPN000080: Disconnecting JGroups channel ISPN
Exception in thread "main" org.infinispan.manager.EmbeddedCacheManagerStartupException: org.infinispan.commons.CacheConfigurationException: Error starting component org.infinispan.topology.ClusterTopologyManager
    at org.infinispan.manager.DefaultCacheManager.internalStart(DefaultCacheManager.java:755)
    at org.infinispan.manager.DefaultCacheManager.start(DefaultCacheManager.java:718)
    at org.infinispan.manager.DefaultCacheManager.<init>(DefaultCacheManager.java:296)
    at org.infinispan.manager.DefaultCacheManager.<init>(DefaultCacheManager.java:219)
    at TestGenerate.main(TestGenerate.java:43)
Caused by: org.infinispan.commons.CacheConfigurationException: Error starting component org.infinispan.topology.ClusterTopologyManager
    at org.infinispan.factories.impl.BasicComponentRegistryImpl.startWrapper(BasicComponentRegistryImpl.java:572)
    at org.infinispan.factories.impl.BasicComponentRegistryImpl.access$700(BasicComponentRegistryImpl.java:30)
    at org.infinispan.factories.impl.BasicComponentRegistryImpl$ComponentWrapper.running(BasicComponentRegistryImpl.java:787)
    at org.infinispan.factories.impl.BasicComponentRegistryImpl.startDependencies(BasicComponentRegistryImpl.java:622)
    at org.infinispan.factories.impl.BasicComponentRegistryImpl.doStartWrapper(BasicComponentRegistryImpl.java:586)
    at org.infinispan.factories.impl.BasicComponentRegistryImpl.startWrapper(BasicComponentRegistryImpl.java:564)
    at org.infinispan.factories.impl.BasicComponentRegistryImpl.access$700(BasicComponentRegistryImpl.java:30)
    at org.infinispan.factories.impl.BasicComponentRegistryImpl$ComponentWrapper.running(BasicComponentRegistryImpl.java:787)
    at org.infinispan.factories.impl.BasicComponentRegistryImpl.startDependencies(BasicComponentRegistryImpl.java:622)
    at org.infinispan.factories.impl.BasicComponentRegistryImpl.doStartWrapper(BasicComponentRegistryImpl.java:586)
    at org.infinispan.factories.impl.BasicComponentRegistryImpl.startWrapper(BasicComponentRegistryImpl.java:564)
    at org.infinispan.factories.impl.BasicComponentRegistryImpl.access$700(BasicComponentRegistryImpl.java:30)
    at org.infinispan.factories.impl.BasicComponentRegistryImpl$ComponentWrapper.running(BasicComponentRegistryImpl.java:787)
    at org.infinispan.factories.AbstractComponentRegistry.internalStart(AbstractComponentRegistry.java:354)
    at org.infinispan.factories.AbstractComponentRegistry.start(AbstractComponentRegistry.java:250)
    at org.infinispan.manager.DefaultCacheManager.internalStart(DefaultCacheManager.java:750)
    ... 4 more
Caused by: java.lang.NullPointerException: Cannot invoke "Object.equals(Object)" because the return value of "org.infinispan.remoting.transport.Transport.getAddress()" is null
    at org.infinispan.topology.TopologyManagementHelper.executeOnCoordinator(TopologyManagementHelper.java:83)
    at org.infinispan.topology.ClusterTopologyManagerImpl.fetchRebalancingStatusFromCoordinator(ClusterTopologyManagerImpl.java:162)
    at org.infinispan.topology.ClusterTopologyManagerImpl.start(ClusterTopologyManagerImpl.java:153)
    at org.infinispan.topology.CorePackageImpl$3.start(CorePackageImpl.java:74)
    at org.infinispan.topology.CorePackageImpl$3.start(CorePackageImpl.java:58)
    at org.infinispan.factories.impl.BasicComponentRegistryImpl.invokeStart(BasicComponentRegistryImpl.java:604)
    at org.infinispan.factories.impl.BasicComponentRegistryImpl.doStartWrapper(BasicComponentRegistryImpl.java:595)
    at org.infinispan.factories.impl.BasicComponentRegistryImpl.startWrapper(BasicComponentRegistryImpl.java:564)
    ... 19 more

If I use the demo code, the getAddress() method will indeed return something (my hostname and a number), but with the modification, the address is indeed null.

Do I have to setup manually the address ? How ?

EDIT : after some search, when I use the demo code, the receiveClusterView(View) method from JGroupsTransport class is called before the executeOnCoordinator(...) method in TopologyManagementHelper class, this set the address.

When using my xml configuration file, the receiveClusterView(view) is not called before the executeOnCoordinator() method, and as such the getAddress() fails.

Environment :

infinispan-core v12.1.7.Final

jgroups v4.2.12.Final (as dependcy from maven)

adopt-openjdk v15.0.2

macOS Big Sur