Viachaslau Tsikhanovich created CAMEL-12511:
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Summary: camel-consul - NPE on ConsulEventConsumer start
Key: CAMEL-12511
URL: https://issues.apache.org/jira/browse/CAMEL-12511
Project: Camel
Issue Type: Bug
Components: camel-consul
Affects Versions: 2.21.1
Reporter: Viachaslau Tsikhanovich
When _doStart_ is called on ConsulEventConsumer it first
[calls|https://github.com/apache/camel/blob/camel-2.21.1/components/camel-consul/src/main/java/org/apache/camel/component/consul/endpoint/ConsulEventConsumer.java#L54]
_doStart_ of a superclass _AbstractConsulConsumer_ when
_scheduledExecutorService_ is not initialized yet.
EventWatcher run [is
allowed|https://github.com/apache/camel/blob/camel-2.21.1/components/camel-consul/src/main/java/org/apache/camel/component/consul/endpoint/AbstractConsulConsumer.java#L95].
Thus _EventWatcher.watch_ is called with uninitialized
_scheduledExecutorService_ and failing with NPE.
{quote}
Caused by: java.lang.NullPointerException: null
at
org.apache.camel.component.consul.endpoint.ConsulEventConsumer$EventWatcher.watch(ConsulEventConsumer.java:76)
at
org.apache.camel.component.consul.endpoint.ConsulEventConsumer$EventWatcher.watch(ConsulEventConsumer.java:68)
at
org.apache.camel.component.consul.endpoint.AbstractConsulConsumer$AbstractWatcher.run(AbstractConsulConsumer.java:96)
at
org.apache.camel.component.consul.endpoint.AbstractConsulConsumer.doStart(AbstractConsulConsumer.java:56)
at
org.apache.camel.component.consul.endpoint.ConsulEventConsumer.doStart(ConsulEventConsumer.java:54)
at
org.apache.camel.support.ServiceSupport.start(ServiceSupport.java:61)
at
org.apache.camel.impl.DefaultCamelContext.startService(DefaultCamelContext.java:3705)
at
org.apache.camel.impl.DefaultCamelContext.doStartOrResumeRouteConsumers(DefaultCamelContext.java:4023)
at
org.apache.camel.impl.DefaultCamelContext.doStartRouteConsumers(DefaultCamelContext.java:3958)
at
org.apache.camel.impl.DefaultCamelContext.safelyStartRouteServices(DefaultCamelContext.java:3878)
at
org.apache.camel.impl.DefaultCamelContext.doStartOrResumeRoutes(DefaultCamelContext.java:3642)
at
org.apache.camel.impl.DefaultCamelContext.doStartCamel(DefaultCamelContext.java:3494)
at
org.apache.camel.impl.DefaultCamelContext.access$000(DefaultCamelContext.java:209)
at
org.apache.camel.impl.DefaultCamelContext$2.call(DefaultCamelContext.java:3253)
at
org.apache.camel.impl.DefaultCamelContext$2.call(DefaultCamelContext.java:3249)
at
org.apache.camel.impl.DefaultCamelContext.doWithDefinedClassLoader(DefaultCamelContext.java:3272)
at
org.apache.camel.impl.DefaultCamelContext.doStart(DefaultCamelContext.java:3249)
at
org.apache.camel.support.ServiceSupport.start(ServiceSupport.java:61)
at
org.apache.camel.impl.DefaultCamelContext.start(DefaultCamelContext.java:3165)
at
org.apache.camel.spring.SpringCamelContext.start(SpringCamelContext.java:133)
...
{quote}
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