camel-users mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Claus Ibsen <claus.ib...@gmail.com>
Subject Re: java.lang.ClassCastException: Not instanceof org.apache.camel.TypeConverter value: org.apache.camel.converter.jaxb.FallbackTypeConverter
Date Tue, 19 Aug 2014 13:26:28 GMT
Hi

How do you deploy your Camel application? Do you put all the JARs in a
WAR? Or do you have some shared JARs in the Tomcat shared lib
directory or something?

It does sound like a classpath issue due the latter.

If all JARs are in the WAR then it ought to use same classloader and just work.

On Tue, Aug 19, 2014 at 2:19 PM, jcuk <jasoncraneuk@hotmail.com> wrote:
> Hello
>
> I'm currently experiencing a problem initializing the TypeConverters in
> Camel in a Spring WebApp.
>
> As soon as the first exchange is created and the type converters are loaded
> (or type converters are loaded explicitly with
> camleContext.getTypeConverterRegistry() ) then I get the following
> exception:
>
> org.apache.camel.RuntimeCamelException: java.lang.ClassCastException: Not
> instanceof org.apache.camel.TypeConverter value:
> org.apache.camel.converter.jaxb.FallbackTypeConverter@35f3198f:
> java.lang.ClassCastException: Not instanceof org.apache.camel.TypeConverter
> value: org.apache.camel.converter.jaxb.FallbackTypeConverter@35f3198f
>         at
> org.apache.camel.impl.DefaultFactoryFinder.newInstance(DefaultFactoryFinder.java:109)
>         at
> org.apache.camel.impl.DefaultFactoryFinder.newInstance(DefaultFactoryFinder.java:99)
>         at
> org.apache.camel.impl.DefaultFactoryFinder.newInstances(DefaultFactoryFinder.java:65)
>         at
> org.apache.camel.impl.converter.BaseTypeConverterRegistry.loadFallbackTypeConverters(BaseTypeConverterRegistry.java:542)
>         at
> org.apache.camel.impl.converter.BaseTypeConverterRegistry.loadTypeConverters(BaseTypeConverterRegistry.java:535)
>         at
> org.apache.camel.impl.converter.DefaultTypeConverter.doStart(DefaultTypeConverter.java:47)
>         at
> org.apache.camel.support.ServiceSupport.start(ServiceSupport.java:61)
>         at
> org.apache.camel.impl.DefaultCamelContext.startService(DefaultCamelContext.java:1888)
>         at
> org.apache.camel.impl.DefaultCamelContext.doAddService(DefaultCamelContext.java:979)
>         at
> org.apache.camel.impl.DefaultCamelContext.addService(DefaultCamelContext.java:940)
>         at
> org.apache.camel.impl.DefaultCamelContext.getTypeConverter(DefaultCamelContext.java:1148)
>         at
> org.apache.camel.impl.DefaultCamelContext.getTypeConverterRegistry(DefaultCamelContext.java:1165)
>
> However, org.apache.camel.converter.jaxb.FallbackTypeConverter implements
> TypeConverter so how can this be the case? I'm not doing anything with
> custom type converters. I have found this on
> http://camel.apache.org/type-converter.html:
>
> ---
> Exposed the TypeConverterRegistry from CamelContext so end users more easily
> will be able to add type converters at runtime. This is also usable in
> situations where the default discovering of type converters fails on
> platforms with classloading issues.
>
> To access the registry, you get it from the CamelContext
> CamelContext context = ...
> context.getTypeConverterRegistry()
> ---
>
> but there is no indication of exactly how this could be used if there are
> class loading issues, and also simply calling getTypeConverterRegistry()
> triggers the problem, so I can't see how this would be of any use.
>
> I initially thought it may be caused by multiple versions of camel being
> included in the deployment, but I've checked and only one version of camel
> is used in the deployment war. Also the version of camel-core and
> camel-spring are matching.
>
> I'm currently using spring 3.2.1 and camel version 2.12.1, but I've also
> tried 2.12.4 and 2.13.2 with the same result. It occurs consistently on my
> local machine where I use the maven-jetty plugin (6.1.26) under cygwyn,
> however when deployed to a Tomcat server (v5.5.20 running on CentOS 5.1),
> the problem is only intermittent.
>
> Any pointers to what could be the problem would be much appreciated
>
> thanks in advance
>
> Jason
>
>
>
>
> --
> View this message in context: http://camel.465427.n5.nabble.com/java-lang-ClassCastException-Not-instanceof-org-apache-camel-TypeConverter-value-org-apache-camel-cor-tp5755390.html
> Sent from the Camel - Users mailing list archive at Nabble.com.



-- 
Claus Ibsen
-----------------
Red Hat, Inc.
Email: cibsen@redhat.com
Twitter: davsclaus
Blog: http://davsclaus.com
Author of Camel in Action: http://www.manning.com/ibsen
hawtio: http://hawt.io/
fabric8: http://fabric8.io/

Mime
View raw message