Use of Lambda Expressions in EAP 6.3.3 logs WARN JBAS015852: Could not index class ... Unknown tag!

Solution Unverified - Updated

Environment

  • Red Hat JBoss Enterprise Application Platform (EAP) 6.3.3
    • Java 8
    • Lambda Expressions

Issue

  • If a deployment is compiled with Java 8 and uses classes that use Lambda's (a Java 8 feature), it will log a warning 
16:00:00,215 WARN  [org.jboss.as.server.deployment] (MSC service thread 1-5) JBAS015852: Could not index class com/jboss/examples/servlet/Shopper.class at /content/test.war/WEB-INF/classes: java.lang.IllegalStateException: Unknown tag! pos=4 poolCount = 92
        at org.jboss.jandex.Indexer.processConstantPool(Indexer.java:606) [jandex-1.0.3.Final-redhat-2.jar:1.0.3.Final-redhat-2]
        at org.jboss.jandex.Indexer.index(Indexer.java:640) [jandex-1.0.3.Final-redhat-2.jar:1.0.3.Final-redhat-2]
        at org.jboss.as.server.deployment.annotation.ResourceRootIndexer.indexResourceRoot(ResourceRootIndexer.java:100) [jboss-as-server-7.4.3.Final-redhat-2.jar:7.4.3.Final-redhat-2]
        at org.jboss.as.server.deployment.annotation.AnnotationIndexProcessor.deploy(AnnotationIndexProcessor.java:51) [jboss-as-server-7.4.3.Final-redhat-2.jar:7.4.3.Final-redhat-2]
        at org.jboss.as.server.deployment.DeploymentUnitPhaseService.start(DeploymentUnitPhaseService.java:159) [jboss-as-server-7.4.3.Final-redhat-2.jar:7.4.3.Final-redhat-2]
        at org.jboss.msc.service.ServiceControllerImpl$StartTask.startService(ServiceControllerImpl.java:1980) [jboss-msc-1.1.5.Final-redhat-1.jar:1.1.5.Final-redhat-1]
        at org.jboss.msc.service.ServiceControllerImpl$StartTask.run(ServiceControllerImpl.java:1913) [jboss-msc-1.1.5.Final-redhat-1.jar:1.1.5.Final-redhat-1]
  • I cannot deploy a CDI Managed Bean with a Lambda expression
  • I modified the Helloword example from the quickstart and changed the HelloService class to use a lambda expression. The modified application cannot be deployed. The following exception is thrown
14:48:51,644 WARN  [org.jboss.as.server.deployment] (MSC service thread 1-4) JBAS015852: Could not index class org/jboss/as/quickstarts/helloworld/HelloService.class at /opt/eap-6.3.3/bin/content/jboss-helloworld.war/WEB-INF/classes: java.lang.IllegalStateException: Unknown tag! pos=25 poolCount = 82
	at org.jboss.jandex.Indexer.processConstantPool(Indexer.java:606) [jandex-1.0.3.Final-redhat-2.jar:1.0.3.Final-redhat-2]
	at org.jboss.jandex.Indexer.index(Indexer.java:640) [jandex-1.0.3.Final-redhat-2.jar:1.0.3.Final-redhat-2]
	at org.jboss.as.server.deployment.annotation.ResourceRootIndexer.indexResourceRoot(ResourceRootIndexer.java:100) [jboss-as-server-7.4.3.Final-redhat-2.jar:7.4.3.Final-redhat-2]
	at org.jboss.as.server.deployment.annotation.AnnotationIndexProcessor.deploy(AnnotationIndexProcessor.java:51) [jboss-as-server-7.4.3.Final-redhat-2.jar:7.4.3.Final-redhat-2]
	at org.jboss.as.server.deployment.DeploymentUnitPhaseService.start(DeploymentUnitPhaseService.java:159) [jboss-as-server-7.4.3.Final-redhat-2.jar:7.4.3.Final-redhat-2]
	at org.jboss.msc.service.ServiceControllerImpl$StartTask.startService(ServiceControllerImpl.java:1980) [jboss-msc-1.1.5.Final-redhat-1.jar:1.1.5.Final-redhat-1]

Resolution

This known issue is being tracked by This content is not included.Bug 1193113. See Known Issues with Java 8 and EAP 6.3.3 for details, workaround instructions, and planned fix information.

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