[jboss-jira] [JBoss JIRA] (ELY-1570) WildFlyElytronProvider fails Java Mission Control and JDK 10

[David Lloyd (JIRA)]

    [ https://issues.jboss.org/browse/ELY-1570?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13568880#comment-13568880 ] 

David Lloyd commented on ELY-1570:
----------------------------------

This appears to be caused by the usage of {{ClassLoader.loadClass()}}.  A {{ClassLoader}} can legitimately be {{null}}; the correct way to load a class with a possibly-null CL reference is to use {{Class.forName(name, intitialize, loader)}}.

> WildFlyElytronProvider fails Java Mission Control and JDK 10
> ------------------------------------------------------------
>
>                 Key: ELY-1570
>                 URL: https://issues.jboss.org/browse/ELY-1570
>             Project: WildFly Elytron
>          Issue Type: Bug
>          Components: Authentication Client
>         Environment: Windows 7  - Java Mission Control - Java 10
> RedHat - Wildfly 12 - Java 10
>            Reporter: Richard Huddleston
>
> I CAN connect to Wildfly with
> JConsole
> JVisualVM
> I cannot connect with 
> Java Mission Control (JMC).  
> I believe this is an issue with some new code that fails to recognize that "classLoader" can be null in the Java SE / Eclipse OSI environment
>  ClassLoader classLoader = WildFlyElytronProvider.class.getClassLoader();
> com.oracle.jmc.rjmx.ConnectionException caused by javax.security.sasl.SaslException [Caused by java.lang.NullPointerException]
> 	at com.oracle.jmc.rjmx.internal.RJMXConnection.connect(RJMXConnection.java:406)
> 	at com.oracle.jmc.rjmx.internal.ServerHandle.doConnect(ServerHandle.java:88)
> 	at com.oracle.jmc.rjmx.internal.ServerHandle.connect(ServerHandle.java:78)
> 	at com.oracle.jmc.console.ui.editor.internal.ConsoleEditor$ConnectJob.run(ConsoleEditor.java:73)
> 	at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)
> Caused by: javax.security.sasl.SaslException [Caused by java.lang.NullPointerException]
> 	at org.jboss.remoting3.remote.ClientConnectionOpenListener$Capabilities.handleEvent(ClientConnectionOpenListener.java:426)
> 	at org.jboss.remoting3.remote.ClientConnectionOpenListener$Capabilities.handleEvent(ClientConnectionOpenListener.java:242)
> 	at org.xnio.ChannelListeners.invokeChannelListener(ChannelListeners.java:92)
> 	at org.xnio.conduits.ReadReadyHandler$ChannelListenerHandler.readReady(ReadReadyHandler.java:66)
> 	at org.xnio.nio.NioSocketConduit.handleReady(NioSocketConduit.java:89)
> 	at org.xnio.nio.WorkerThread.run(WorkerThread.java:591)
> 	at ...asynchronous invocation...(Unknown Source)
> 	at org.jboss.remoting3.EndpointImpl.connect(EndpointImpl.java:570)
> 	at org.jboss.remoting3.EndpointImpl.connect(EndpointImpl.java:532)
> 	at org.jboss.remoting3.EndpointImpl.connect(EndpointImpl.java:520)
> 	at org.jboss.remotingjmx.RemotingConnector.internalRemotingConnect(RemotingConnector.java:268)
> 	at org.jboss.remotingjmx.RemotingConnector.internalConnect(RemotingConnector.java:156)
> 	at org.jboss.remotingjmx.RemotingConnector.connect(RemotingConnector.java:103)
> 	at com.oracle.jmc.rjmx.internal.RJMXConnection.connectJmxConnector(RJMXConnection.java:451)
> 	at com.oracle.jmc.rjmx.internal.RJMXConnection.establishConnection(RJMXConnection.java:427)
> 	at com.oracle.jmc.rjmx.internal.RJMXConnection.connect(RJMXConnection.java:399)
> 	... 4 more
> Caused by: java.lang.NullPointerException
> 	at org.wildfly.security.WildFlyElytronProvider$ProviderService.getImplementationClass(WildFlyElytronProvider.java:429)
> 	at org.wildfly.security.WildFlyElytronProvider$ProviderService.newInstance(WildFlyElytronProvider.java:413)
> 	at org.wildfly.security.sasl.util.SecurityProviderSaslClientFactory.createSaslClient(SecurityProviderSaslClientFactory.java:94)
> 	at org.wildfly.security.sasl.util.AbstractDelegatingSaslClientFactory.createSaslClient(AbstractDelegatingSaslClientFactory.java:66)
> 	at org.wildfly.security.sasl.util.ProtocolSaslClientFactory.createSaslClient(ProtocolSaslClientFactory.java:50)
> 	at org.wildfly.security.sasl.util.AbstractDelegatingSaslClientFactory.createSaslClient(AbstractDelegatingSaslClientFactory.java:66)
> 	at org.wildfly.security.sasl.util.ServerNameSaslClientFactory.createSaslClient(ServerNameSaslClientFactory.java:50)
> 	at org.wildfly.security.sasl.util.AbstractDelegatingSaslClientFactory.createSaslClient(AbstractDelegatingSaslClientFactory.java:66)
> 	at org.wildfly.security.sasl.util.ServerNameSaslClientFactory.createSaslClient(ServerNameSaslClientFactory.java:50)
> 	at org.wildfly.security.sasl.util.FilterMechanismSaslClientFactory.createSaslClient(FilterMechanismSaslClientFactory.java:102)
> 	at org.wildfly.security.sasl.util.AbstractDelegatingSaslClientFactory.createSaslClient(AbstractDelegatingSaslClientFactory.java:66)
> 	at org.wildfly.security.sasl.util.LocalPrincipalSaslClientFactory.createSaslClient(LocalPrincipalSaslClientFactory.java:76)
> 	at org.wildfly.security.sasl.util.PrivilegedSaslClientFactory.lambda$createSaslClient$0(PrivilegedSaslClientFactory.java:64)
> 	at java.base/java.security.AccessController.doPrivileged(Native Method)
> 	at org.wildfly.security.sasl.util.PrivilegedSaslClientFactory.createSaslClient(PrivilegedSaslClientFactory.java:64)
> 	at org.wildfly.security.auth.client.AuthenticationConfiguration.createSaslClient(AuthenticationConfiguration.java:1348)
> 	at org.wildfly.security.auth.client.AuthenticationContextConfigurationClient.createSaslClient(AuthenticationContextConfigurationClient.java:395)
> 	at org.jboss.remoting3.remote.ClientConnectionOpenListener$Capabilities.handleEvent(ClientConnectionOpenListener.java:420)
> 	at org.jboss.remoting3.remote.ClientConnectionOpenListener$Capabilities.handleEvent(ClientConnectionOpenListener.java:242)
> 	at org.xnio.ChannelListeners.invokeChannelListener(ChannelListeners.java:92)
> 	at org.xnio.conduits.ReadReadyHandler$ChannelListenerHandler.readReady(ReadReadyHandler.java:66)
> 	at org.xnio.nio.NioSocketConduit.handleReady(NioSocketConduit.java:89)
> 	at org.xnio.nio.WorkerThread.run(WorkerThread.java:591)



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