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Bug
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Resolution: Done
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Major
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EAP-XP-4.0.0.GA
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False
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None
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False
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According to the configuration model, the microprofile-metrics-smallrye subsystem should allow for a null value for `prefix`, but on XP 4.0.1 it will throw NullPointerException on startup/reload if that value is null.
Fails:
<subsystem xmlns="urn:wildfly:microprofile-metrics-smallrye:2.0" security-enabled="false" exposed-subsystems="*"/>
Succeeds:
<subsystem xmlns="urn:wildfly:microprofile-metrics-smallrye:2.0" security-enabled="false" exposed-subsystems="*" prefix="${wildfly.metrics.prefix:jboss}"/>
And the error which is shown in the logs:
2023-10-19 06:54:16,280 ERROR [org.jboss.as.controller.management-operation] (Controller Boot Thread) WFLYCTL0013: Operation ("add") failed - address: ([("subsystem" => "microprofile-metrics-smallrye")]): java.lang.NullPointerException at java.base/java.util.Objects.requireNonNull(Objects.java:221) at org.wildfly.extension.metrics@7.4.12.GA-redhat-00003//org.wildfly.extension.metrics.WildFlyMetricMetadata.<init>(WildFlyMetricMetadata.java:55) at org.wildfly.extension.metrics@7.4.12.GA-redhat-00003//org.wildfly.extension.metrics.MetricCollector.collectResourceMetrics0(MetricCollector.java:125) at org.wildfly.extension.metrics@7.4.12.GA-redhat-00003//org.wildfly.extension.metrics.MetricCollector.collectResourceMetrics0(MetricCollector.java:135) at org.wildfly.extension.metrics@7.4.12.GA-redhat-00003//org.wildfly.extension.metrics.MetricCollector.collectResourceMetrics0(MetricCollector.java:135) at org.wildfly.extension.metrics@7.4.12.GA-redhat-00003//org.wildfly.extension.metrics.MetricCollector.collectResourceMetrics0(MetricCollector.java:135) at org.wildfly.extension.metrics@7.4.12.GA-redhat-00003//org.wildfly.extension.metrics.MetricCollector.collectResourceMetrics(MetricCollector.java:68) at org.wildfly.extension.microprofile.metrics-smallrye@4.0.0.GA-redhat-00003//org.wildfly.extension.microprofile.metrics.MicroProfileMetricsSubsystemAdd$2.execute(MicroProfileMetricsSubsystemAdd.java:103) at org.jboss.as.controller@15.0.29.Final-redhat-00001//org.jboss.as.controller.AbstractOperationContext.executeStep(AbstractOperationContext.java:1063) at org.jboss.as.controller@15.0.29.Final-redhat-00001//org.jboss.as.controller.AbstractOperationContext.processStages(AbstractOperationContext.java:784) at org.jboss.as.controller@15.0.29.Final-redhat-00001//org.jboss.as.controller.AbstractOperationContext.executeOperation(AbstractOperationContext.java:470) at org.jboss.as.controller@15.0.29.Final-redhat-00001//org.jboss.as.controller.OperationContextImpl.executeOperation(OperationContextImpl.java:1430) at org.jboss.as.controller@15.0.29.Final-redhat-00001//org.jboss.as.controller.ModelControllerImpl.boot(ModelControllerImpl.java:559) at org.jboss.as.controller@15.0.29.Final-redhat-00001//org.jboss.as.controller.AbstractControllerService.boot(AbstractControllerService.java:546) at org.jboss.as.controller@15.0.29.Final-redhat-00001//org.jboss.as.controller.AbstractControllerService.boot(AbstractControllerService.java:508) at org.jboss.as.server@15.0.29.Final-redhat-00001//org.jboss.as.server.ServerService.boot(ServerService.java:464) at org.jboss.as.server@15.0.29.Final-redhat-00001//org.jboss.as.server.ServerService.boot(ServerService.java:417) at org.jboss.as.controller@15.0.29.Final-redhat-00001//org.jboss.as.controller.AbstractControllerService$1.run(AbstractControllerService.java:447) at java.base/java.lang.Thread.run(Thread.java:829) // code placeholder
