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https://issues.apache.org/jira/browse/CAMEL-4517?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13145256#comment-13145256
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Timothy commented on CAMEL-4517:
--------------------------------
that was strange, if I change the route from '.to("jms:crtQueue")' to
'.loadBalance().roundRobin().to("jms:crtQueue")', and it works well.
but without .loadBalance().roundRobin(), an
ClassCastException(org.apache.camel.model.RouteDefinition cannot be cast to
org.apache.camel.model.ChoiceDefinition) will be thrown.
to pop the last type of the stack by using endChoice() seems to have some
problem inside.
> got cast exception when using endChoice() in Java DSL
> -----------------------------------------------------
>
> Key: CAMEL-4517
> URL: https://issues.apache.org/jira/browse/CAMEL-4517
> Project: Camel
> Issue Type: Bug
> Components: camel-core
> Affects Versions: 2.8.1
> Environment: Windows XP, JDK 1.6, Eclipse IDE
> Reporter: Timothy
>
> I am trying CBR pattern and using 'choice', 'when', 'to' and 'endChoice()'.
> I can actually have the code compile, but always got cast exception when
> running it.
> this really confused me, because I checked every steps and can't find any
> problems.
> does anyone have similar situation?
> here is my Camel route in JDSL:
> =========================================================================
> 18 CamelContext context = new DefaultCamelContext();
> 19 ConnectionFactory connectionFacotyr = new
> ActiveMQConnectionFactory("tcp://P10118178-T400:61616");
> 20 context.addComponent("jms",
> JmsComponent.jmsComponentAutoAcknowledge(connectionFacotyr));
> 21
> 22 context.addRoutes(new RouteBuilder() {
> 23 public void configure() throws Exception {
> 24 from("jms:incomingOrders")
> 25 .choice()
> 26 .when(header("CamelFileName").endsWith(".crt"))
> 27 .to("jms:crtQueue").endChoice()
> 28 .when(header("CamelFileName").endsWith(".zpx"))
> 29 .to("jms:zpxQueue");
> 30 }
> 31 });
> =========================================================================
> pretty simple route. but always got an 'java.lang.ClassCastException' when I
> start the Camel route.
> the exception message as below: (the exception occurred at line 27)
> =========================================================================
> java.lang.ClassCastException: org.apache.camel.model.RouteDefinition cannot
> be cast to org.apache.camel.model.ChoiceDefinition
> at
> org.apache.camel.model.ProcessorDefinition.endChoice(ProcessorDefinition.java:1203)
> at SimpleTest$1.configure(SimpleTest.java:27)
> at
> org.apache.camel.builder.RouteBuilder.checkInitialized(RouteBuilder.java:322)
> at
> org.apache.camel.builder.RouteBuilder.configureRoutes(RouteBuilder.java:277)
> at
> org.apache.camel.builder.RouteBuilder.addRoutesToCamelContext(RouteBuilder.java:263)
> at
> org.apache.camel.impl.DefaultCamelContext.addRoutes(DefaultCamelContext.java:603)
> at SimpleTest.main(SimpleTest.java:22)
> =========================================================================
> Maven pom.xml:
> =========================================================================
> <project xmlns="http://maven.apache.org/POM/4.0.0";
> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
> xsi:schemaLocation="http://maven.apache.org/POM/4.0.0
> http://maven.apache.org/maven-v4_0_0.xsd";>
> <modelVersion>4.0.0</modelVersion>
> <groupId>com.pic.newigx.sample</groupId>
> <artifactId>rider.auto.parts.sample1.eip.filter1</artifactId>
> <version>0.0.1-SNAPSHOT</version>
> <build>
> <plugins>
> <plugin>
> <groupId>org.apache.camel</groupId>
> <artifactId>camel-maven-plugin</artifactId>
> <version>2.8.0</version>
> </plugin>
> </plugins>
> </build>
> <dependencies>
> <dependency>
> <groupId>org.apache.camel</groupId>
> <artifactId>camel-jms</artifactId>
> <version>2.8.1</version>
> </dependency>
> <dependency>
> <groupId>org.apache.camel</groupId>
> <artifactId>camel-spring</artifactId>
> <version>2.8.1</version>
> </dependency>
> <dependency>
> <groupId>org.apache.activemq</groupId>
> <artifactId>activemq-core</artifactId>
> <version>5.3.1</version>
> </dependency>
> </dependencies>
> </project>
> =========================================================================
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