EJB invocation from standalone java fails with NullPointerException in EAP 7.1

Solution Verified - Updated

Environment

  • Red Hat Enterprise Application Platform (EAP) 7.1

Issue

  • Invocation of an EJB from a standalone application via java -Xbootclasspath/p:$JBOSS_HOME/bin/client/jboss-client.jar -jar app.jar fails with a NullPointerException
  • Using Xbootclasspath leads to NullPointerException

Resolution

A client application can be invoked using java -cp $JBOSS_HOME/bin/client/jboss-client.jar:app.jar org.wildfly.client.Main in order to avoid jboss-client.jar on the bootclasspath.

Root Cause

The NullPointerException occurs due to Content from issues.jboss.org is not included.JBEAP-12752 when the jboss-client.jar is on the bootclasspath.

Diagnostic Steps

When executing the client application via java -Xbootclasspath/p:$JBOSS_HOME/bin/client/jboss-client.jar -jar app.jar the following stacktrace can be observed:

org.wildfly.naming.client.Version <clinit>
INFO: WildFly Naming version 1.0.0.Beta16-redhat-1
org.xnio.Xnio <clinit>
INFO: XNIO version 3.5.0.Beta7-redhat-1
AM org.xnio.nio.NioXnio <clinit>
INFO: XNIO NIO Implementation Version 3.5.0.Beta7-redhat-1
Exception in thread "main" java.lang.ExceptionInInitializerError
        at org.jboss.remoting3.ConfigurationEndpointSupplier.get(ConfigurationEndpointSupplier.java:88)
        at org.jboss.remoting3.ConfigurationEndpointSupplier.get(ConfigurationEndpointSupplier.java:44)
        at org.wildfly.common.context.ContextManager.getPrivileged(ContextManager.java:282)
        at org.jboss.remoting3.Endpoint.getCurrent(Endpoint.java:84)
        at org.wildfly.naming.client.remote.RemoteNamingProviderFactory.getEndpoint(RemoteNamingProviderFactory.java:171)
        at org.wildfly.naming.client.remote.RemoteNamingProviderFactory.supportsUriScheme(RemoteNamingProviderFactory.java:93)
        at org.wildfly.naming.client.WildFlyRootContext.getProviderContext(WildFlyRootContext.java:781)
        at org.wildfly.naming.client.WildFlyRootContext.lookup(WildFlyRootContext.java:146)
        at javax.naming.InitialContext.lookup(InitialContext.java:417)
        at org.wildfly.client.Main.main(Main.java:122)
Caused by: java.lang.NullPointerException
        at org.jboss.ejb.client.legacy.JBossEJBProperties.fromResource(JBossEJBProperties.java:410)
        at org.jboss.ejb.client.legacy.JBossEJBProperties.fromClassPath(JBossEJBProperties.java:447)
        at org.jboss.ejb.client.legacy.JBossEJBProperties.fromClassPath(JBossEJBProperties.java:451)
        at org.jboss.ejb.client.legacy.JBossEJBProperties.lambda$static$2(JBossEJBProperties.java:139)
        at org.wildfly.common.context.ContextManager.getPrivileged(ContextManager.java:282)
        at org.jboss.ejb.client.legacy.JBossEJBProperties.getCurrent(JBossEJBProperties.java:455)
        at org.jboss.ejb.client.legacy.RemotingLegacyConfiguration.getConfiguredEndpoint(RemotingLegacyConfiguration.java:43)
        at org.jboss.remoting3.ConfigurationEndpointSupplier$Holder.lambda$static$0(ConfigurationEndpointSupplier.java:62)
        at java.security.AccessController.doPrivileged(Native Method)
        at org.jboss.remoting3.ConfigurationEndpointSupplier$Holder.<clinit>(ConfigurationEndpointSupplier.java:49)
        ... 11 more
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