JBAS014612: NullPointerException from "read-attribute" management operation in EAP 6
Issue
I'm seeing the following error in my log:
JBAS014612: Operation ("read-attribute") failed - address: ([
("deployment" => "example.war"),
("subsystem" => "web"),
("servlet" => "testServlet")
]): java.lang.NullPointerException
at org.jboss.as.web.WebDeploymentServletDefinition$5.handle(WebDeploymentServletDefinition.java:91)
at org.jboss.as.web.WebDeploymentServletDefinition$AbstractMetricsHandler$1.execute(WebDeploymentServletDefinition.java:119)
at org.jboss.as.controller.AbstractOperationContext.executeStep(AbstractOperationContext.java:611)
at org.jboss.as.controller.AbstractOperationContext.doCompleteStep(AbstractOperationContext.java:489)
at org.jboss.as.controller.AbstractOperationContext.completeStepInternal(AbstractOperationContext.java:290)
What does it mean, and how can I prevent it?
Environment
- Red Hat JBoss Enterprise Application Platform (EAP)
- 6.x
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