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  1. WildFly Core
  2. WFCORE-3572

NullPointerException during server reload

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    • Icon: Bug Bug
    • Resolution: Done
    • Icon: Blocker Blocker
    • 4.0.0.Alpha9
    • 4.0.0.Alpha7
    • Management, Remoting
    • None

      Reproducer:

      0. build wildfly from master
      1. ./standalone.sh
      2. ./jboss-cli.sh
         connect
         reload
         reload
         reload
         ...
      

      In log there occurs NPE:

      09:52:28,772 INFO  [org.jboss.as] (Controller Boot Thread) WFLYSRV0025: WildFly Core 4.0.0.Alpha7 "Kenny" started in 196ms - Started 292 of 532 services (327 services are lazy, passive or on-demand)
      09:52:32,175 INFO  [org.wildfly.extension.undertow] (MSC service thread 1-2) WFLYUT0008: Undertow HTTPS listener https suspending
      09:52:32,176 INFO  [org.jboss.as.connector.subsystems.datasources] (MSC service thread 1-8) WFLYJCA0010: Unbound data source [java:jboss/datasources/ExampleDS]
      09:52:32,176 INFO  [org.wildfly.extension.undertow] (MSC service thread 1-6) WFLYUT0008: Undertow HTTP listener default suspending
      09:52:32,176 INFO  [org.wildfly.extension.undertow] (MSC service thread 1-5) WFLYUT0019: Host default-host stopping
      09:52:32,176 INFO  [org.wildfly.extension.undertow] (MSC service thread 1-6) WFLYUT0007: Undertow HTTP listener default stopped, was bound to 127.0.0.1:8080
      09:52:32,177 INFO  [org.wildfly.extension.undertow] (MSC service thread 1-2) WFLYUT0007: Undertow HTTPS listener https stopped, was bound to 127.0.0.1:8443
      09:52:32,179 INFO  [org.wildfly.extension.undertow] (MSC service thread 1-8) WFLYUT0004: Undertow 1.4.22.Final stopping
      09:52:32,180 INFO  [org.jboss.as.connector.deployers.jdbc] (MSC service thread 1-8) WFLYJCA0019: Stopped Driver service with driver-name = h2
      09:52:32,184 INFO  [org.jboss.as.mail.extension] (MSC service thread 1-1) WFLYMAIL0002: Unbound mail session [java:jboss/mail/Default]
      09:52:32,182 ERROR [org.jboss.threads.errors] (management task-1) Thread Thread[management task-1,5,main] threw an uncaught exception: java.lang.NullPointerException
      	at org.jboss.as.server.mgmt.ManagementWorkerService.stopDone(ManagementWorkerService.java:72)
      	at org.xnio.XnioWorker$1.run(XnioWorker.java:138)
      	at org.jboss.threads.EnhancedQueueExecutor.safeRun(EnhancedQueueExecutor.java:1979)
      	at org.jboss.threads.EnhancedQueueExecutor.completeTermination(EnhancedQueueExecutor.java:1755)
      	at org.jboss.threads.EnhancedQueueExecutor.tryDeallocateThread(EnhancedQueueExecutor.java:1578)
      	at org.jboss.threads.EnhancedQueueExecutor$ThreadBody.run(EnhancedQueueExecutor.java:1393)
      	at java.lang.Thread.run(Thread.java:745)
      
      09:52:32,187 INFO  [org.jboss.as] (MSC service thread 1-6) WFLYSRV0050: WildFly Core 4.0.0.Alpha7 "Kenny" stopped in 20ms
      09:52:32,189 INFO  [org.jboss.as] (MSC service thread 1-6) WFLYSRV0049: WildFly Core 4.0.0.Alpha7 "Kenny" starting
      

      Also sometimes (in TS) I can see AssertionError be thrown from same area of code.

      13:59:39,966 ERROR [org.jboss.threads.errors] (management task-3) Thread Thread[management task-3,5,main] threw an uncaught exception: java.lang.AssertionError
      	at org.jboss.as.server.mgmt.ManagementWorkerService.stopDone(ManagementWorkerService.java:71)
      	at org.xnio.XnioWorker$1.run(XnioWorker.java:138)
      	at org.jboss.threads.EnhancedQueueExecutor.safeRun(EnhancedQueueExecutor.java:1979)
      	at org.jboss.threads.EnhancedQueueExecutor.completeTermination(EnhancedQueueExecutor.java:1755)
      	at org.jboss.threads.EnhancedQueueExecutor.tryDeallocateThread(EnhancedQueueExecutor.java:1578)
      	at org.jboss.threads.EnhancedQueueExecutor$ThreadBody.run(EnhancedQueueExecutor.java:1393)
      	at java.lang.Thread.run(Thread.java:748)
      

              dlloyd@redhat.com David Lloyd
              mchoma@redhat.com Martin Choma
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                Created:
                Updated:
                Resolved: