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Posted to issues@camel.apache.org by "Claus Ibsen (Jira)" <ji...@apache.org> on 2020/08/24 14:36:00 UTC
[jira] [Reopened] (CAMEL-15457) camel-micrometer: NullPointer
exception triggered by MicrometerExchangeEventNotifier
[ https://issues.apache.org/jira/browse/CAMEL-15457?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Claus Ibsen reopened CAMEL-15457:
---------------------------------
> camel-micrometer: NullPointer exception triggered by MicrometerExchangeEventNotifier
> ------------------------------------------------------------------------------------
>
> Key: CAMEL-15457
> URL: https://issues.apache.org/jira/browse/CAMEL-15457
> Project: Camel
> Issue Type: Bug
> Components: camel-micrometer
> Affects Versions: 3.5.0
> Reporter: Espen Andreassen
> Assignee: Claus Ibsen
> Priority: Major
> Fix For: 3.5.0
>
>
> A recent [comit|[https://github.com/apache/camel/pull/3976]] causes NullPointer exceptions in some circumstances, though they are caught and logged as "WARN".
> Output from the test testCamelRouteEvents() in MicrometerExchangeEventNotifierTest in master branch:
> {code:java}
> 11:44:32.741 [main] WARN org.apache.camel.support.EventHelper - Error notifying event ID-devbox-1598261669122-0-1 exchange Exchange[ID-devbox-1598261669122-0-1] sending to: direct://in. This exception will be ignored.11:44:32.741 [main] WARN org.apache.camel.support.EventHelper - Error notifying event ID-devbox-1598261669122-0-1 exchange Exchange[ID-devbox-1598261669122-0-1] sending to: direct://in. This exception will be ignored.java.lang.NullPointerException: null at java.util.Objects.requireNonNull(Objects.java:221) ~[?:?] at io.micrometer.core.instrument.ImmutableTag.<init>(ImmutableTag.java:35) ~[micrometer-core-1.5.4.jar:1.5.4] at io.micrometer.core.instrument.Tag.of(Tag.java:29) ~[micrometer-core-1.5.4.jar:1.5.4] at io.micrometer.core.instrument.Tags.of(Tags.java:254) ~[micrometer-core-1.5.4.jar:1.5.4] at org.apache.camel.component.micrometer.eventnotifier.MicrometerExchangeEventNotifierNamingStrategy.getInflightExchangesTags(MicrometerExchangeEventNotifierNamingStrategy.java:58) ~[classes/:?] at org.apache.camel.component.micrometer.eventnotifier.MicrometerExchangeEventNotifier.handleExchangeEvent(MicrometerExchangeEventNotifier.java:80) ~[classes/:?] at org.apache.camel.component.micrometer.eventnotifier.MicrometerExchangeEventNotifier.notify(MicrometerExchangeEventNotifier.java:65) ~[classes/:?] at org.apache.camel.support.EventHelper.doNotifyEvent(EventHelper.java:1236) ~[classes/:?] at org.apache.camel.support.EventHelper.notifyExchangeSending(EventHelper.java:700) ~[classes/:?]
> {code}
> The problem is that the MicrometerExchangeEventNotifier tries to build/update a metric on inflight exchanges in a route based on an ExchangeEvent with no associated fromRoute/fromRouteId. Events such as "ExchangeSendingEvent", as is created in the test, is an example of such an ExchangeEvent.
>
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