I’m trying to run the Camel Example ‘camel-example-spring-jms’ (also at http://activemq.apache.org/camel/tutorial-jmsremoting.html). However, when I try to start Camel using ‘org.apache.camel.spring.Main’ class, I get the error saying
‘Configuration problem: Unable to locate Spring NamespaceHandler for XML schema namespace [http://activemq.apache.org/schema/core%5D‘
[Note: I’m able to run the example just fine when I use Maven command ‘mvn exec:java -PCamelServer’ ]
Can someone please help me understand what might be causing this. A potential resolution hint will not hurt either 🙂
++++++ Error Stack +++++
Dec 4, 2008 12:45:01 PM org.apache.camel.util.MainSupport doStart INFO: Apache Camel 1.5.0 starting Dec 4, 2008 12:45:01 PM org.springframework.context.support.AbstractApplicationContext prepareRefresh INFO: Refreshing org.springframework.context.support.ClassPathXmlApplicationContext@1ac3c08: display name [org.springframework.context.support.ClassPathXmlApplicationContext@1ac3c08]; startup date [Thu Dec 04 12:45:01 EST 2008]; root of context hierarchy Dec 4, 2008 12:45:01 PM org.springframework.beans.factory.xml.XmlBeanDefinitionReader loadBeanDefinitions INFO: Loading XML bean definitions from file [C:\dev\camel-example-spring-jms\bin\META-INF\spring\camel-server-aop.xml] Dec 4, 2008 12:45:02 PM org.springframework.beans.factory.xml.XmlBeanDefinitionReader loadBeanDefinitions INFO: Loading XML bean definitions from file [C:\dev\camel-example-spring-jms\bin\META-INF\spring\camel-server.xml] Dec 4, 2008 12:45:03 PM org.apache.camel.util.MainSupport run SEVERE: Failed: org.springframework.beans.factory.parsing.BeanDefinitionParsingException: Configuration problem: Failed to import bean definitions from relative location [camel-server.xml] Offending resource: file [C:\dev\camel-example-spring-jms\bin\META-INF\spring\camel-server-aop.xml]; nested exception is org.springframework.beans.factory.parsing.BeanDefinitionParsingException: Configuration problem: Unable to locate Spring NamespaceHandler for XML schema namespace [http://activemq.apache.org/schema/core] Offending resource: file [C:\dev\camel-example-spring-jms\bin\META-INF\spring\camel-server.xml] org.springframework.beans.factory.parsing.BeanDefinitionParsingException: Configuration problem: Failed to import bean definitions from relative location [camel-server.xml] Offending resource: file [C:\dev\camel-example-spring-jms\bin\META-INF\spring\camel-server-aop.xml]; nested exception is org.springframework.beans.factory.parsing.BeanDefinitionParsingException: Configuration problem: Unable to locate Spring NamespaceHandler for XML schema namespace [http://activemq.apache.org/schema/core] Offending resource: file [C:\dev\camel-example-spring-jms\bin\META-INF\spring\camel-server.xml] at org.springframework.beans.factory.parsing.FailFastProblemReporter.error(FailFastProblemReporter.java:68) at org.springframework.beans.factory.parsing.ReaderContext.error(ReaderContext.java:85) at org.springframework.beans.factory.parsing.ReaderContext.error(ReaderContext.java:76) at org.springframework.beans.factory.xml.DefaultBeanDefinitionDocumentReader.importBeanDefinitionResource(DefaultBeanDefinitionDocumentReader.java:201) at org.springframework.beans.factory.xml.DefaultBeanDefinitionDocumentReader.parseDefaultElement(DefaultBeanDefinitionDocumentReader.java:147) at org.springframework.beans.factory.xml.DefaultBeanDefinitionDocumentReader.parseBeanDefinitions(DefaultBeanDefinitionDocumentReader.java:132) at org.springframework.beans.factory.xml.DefaultBeanDefinitionDocumentReader.registerBeanDefinitions(DefaultBeanDefinitionDocumentReader.java:92) at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.registerBeanDefinitions(XmlBeanDefinitionReader.java:507) at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.doLoadBeanDefinitions(XmlBeanDefinitionReader.java:398) at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:342) at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:310) at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:143) at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:178) at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:149) at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:212) at org.springframework.context.support.AbstractXmlApplicationContext.loadBeanDefinitions(AbstractXmlApplicationContext.java:113) at org.springframework.context.support.AbstractXmlApplicationContext.loadBeanDefinitions(AbstractXmlApplicationContext.java:80) at org.springframework.context.support.AbstractRefreshableApplicationContext.refreshBeanFactory(AbstractRefreshableApplicationContext.java:123) at org.springframework.context.support.AbstractApplicationContext.obtainFreshBeanFactory(AbstractApplicationContext.java:423) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:353) at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:139) at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:93) at org.apache.camel.spring.Main.createDefaultApplicationContext(Main.java:189) at org.apache.camel.spring.Main.doStart(Main.java:152) at org.apache.camel.impl.ServiceSupport.start(ServiceSupport.java:47) at org.apache.camel.util.MainSupport.run(MainSupport.java:121) at org.apache.camel.util.MainSupport.run(MainSupport.java:310) at org.apache.camel.spring.Main.main(Main.java:72) ++++++
So it works fine under maven – but not if you run it how? In your IDE or something?
If you are using eclipse / intellij you can create an IDE project for the maven project using maven.
or
If you are writing some shell script or running it from the command line then its likely you are missing some jars; you’ll need spring + jaxb + commons-logging + camel-core, camel-spring and camel-jms.
To get an accurate list of the dependencies in maven type