wupenghuai created CAMEL-15450:
----------------------------------
Summary: ClusteredRoutePolicyFactory throw NullPointerException
when adding a route to CamelContext that has been started
Key: CAMEL-15450
URL: https://issues.apache.org/jira/browse/CAMEL-15450
Project: Camel
Issue Type: Bug
Components: came-core
Affects Versions: 2.25.2
Reporter: wupenghuai
Hello,
I recently found that when using ClusteredRoutePolicyFactory , adding a route
to a CamelContext that has been started gives an error.
follow is exceptionn stak
{code:java}
org.apache.camel.FailedToCreateRouteException: Failed to create route ns1/1:
Route(ns1/1)[[From[timer:pocTimer?period=10s]] -> [SetHeader... because of
java.lang.RuntimeException:
java.lang.NullPointerExceptionorg.apache.camel.FailedToCreateRouteException:
Failed to create route ns1/1: Route(ns1/1)[[From[timer:pocTimer?period=10s]] ->
[SetHeader... because of java.lang.RuntimeException:
java.lang.NullPointerException at
org.apache.camel.model.RouteDefinition.addRoutes(RouteDefinition.java:217) at
org.apache.camel.impl.DefaultCamelContext.startRoute(DefaultCamelContext.java:1139)
at
org.apache.camel.impl.DefaultCamelContext.startRouteDefinitions(DefaultCamelContext.java:3736)
at
org.apache.camel.impl.DefaultCamelContext.addRouteDefinitions(DefaultCamelContext.java:1071)
at com.netease.cloud.nsf.server.DefaultServer.onAdd(DefaultServer.java:65) at
com.netease.cloud.nsf.resource.DefaultResourceManager.lambda$compareAndNotify$0(DefaultResourceManager.java:51)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)Caused by:
org.apache.camel.RuntimeCamelException: java.lang.RuntimeException:
java.lang.NullPointerException at
org.apache.camel.impl.cluster.ClusteredRoutePolicyFactory.createRoutePolicy(ClusteredRoutePolicyFactory.java:65)
at org.apache.camel.model.RouteDefinition.addRoutes(RouteDefinition.java:1304)
at org.apache.camel.model.RouteDefinition.addRoutes(RouteDefinition.java:212)
... 8 moreCaused by: java.lang.RuntimeException: java.lang.NullPointerException
at
org.apache.camel.impl.cluster.ClusteredRoutePolicy.setCamelContext(ClusteredRoutePolicy.java:140)
at
org.apache.camel.impl.cluster.ClusteredRoutePolicy.forNamespace(ClusteredRoutePolicy.java:350)
at
org.apache.camel.impl.cluster.ClusteredRoutePolicyFactory.createRoutePolicy(ClusteredRoutePolicyFactory.java:63)
... 10 moreCaused by: java.lang.NullPointerException at
org.apache.camel.impl.cluster.ClusteredRoutePolicy.onCamelContextStarted(ClusteredRoutePolicy.java:285)
at
org.apache.camel.impl.cluster.ClusteredRoutePolicy.access$800(ClusteredRoutePolicy.java:49)
at
org.apache.camel.impl.cluster.ClusteredRoutePolicy$CamelContextStartupListener.onCamelContextStarted(ClusteredRoutePolicy.java:338)
at
org.apache.camel.impl.cluster.ClusteredRoutePolicy$CamelContextStartupListener.onCamelContextStarted(ClusteredRoutePolicy.java:323)
at
org.apache.camel.impl.DefaultCamelContext.addStartupListener(DefaultCamelContext.java:1565)
at
org.apache.camel.impl.cluster.ClusteredRoutePolicy.setCamelContext(ClusteredRoutePolicy.java:136)
... 12 more
{code}
then i locate the cause:
ClusteredRoutePolicyFactory will call ClusteredRoutePolicy.forNamespace
ClusteredRoutePolicy.forNamespace rely on ClusteredRoutePolicy.setCamelContext
SetCamelContext will determine if the CamelContext has been started, and if so,
the following logic will be executed
{code:java}
private void onCamelContextStarted() {
LOGGER.debug("Apply cluster policy (stopped-routes='{}',
started-routes='{}')",
stoppedRoutes.stream().map(Route::getId).collect(Collectors.joining(",")),
startedRoutes.stream().map(Route::getId).collect(Collectors.joining(","))
);
clusterView.addEventListener(leadershipEventListener);
}
{code}
But at this point the clusterView is still not initialized.It will be
initialized when the ClusteredRoutePolicy.start() is called.
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
