context.GrailsContextLoader Error executing bootstraps: null

[mtgleeson]

I've created a new Grails 2.0.3 project. Installed the latest Routing plugin (1.2.2). I've created a simple route using 'grails create-route Example' with the following configuration.

class ExampleRoute extends RouteBuilder {

@Override
void configure() {
    from('seda:input').to('stream:out')
}

}

When I try to run the app using 'grails run-app' it fails with the following stack trace. Is Routing 1.2.2 compatible with Grails 2.0.3?

Running Grails application context.GrailsContextLoader Error executing bootstraps: null java.lang.NullPointerException at com.sun.xml.internal.bind.v2.runtime.ClassBeanInfoImpl.checkOverrideProperties(ClassBeanInfoImpl.java:190) at com.sun.xml.internal.bind.v2.runtime.ClassBeanInfoImpl.(ClassBeanInfoImpl.java:171) at com.sun.xml.internal.bind.v2.runtime.JAXBContextImpl.getOrCreate(JAXBContextImpl.java:494) at com.sun.xml.internal.bind.v2.runtime.JAXBContextImpl.getOrCreate(JAXBContextImpl.java:513) at com.sun.xml.internal.bind.v2.runtime.property.ArrayReferenceNodeProperty.(ArrayReferenceNodeProperty.java:72) at com.sun.xml.internal.bind.v2.runtime.property.PropertyFactory.create(PropertyFactory.java:113) at com.sun.xml.internal.bind.v2.runtime.ClassBeanInfoImpl.(ClassBeanInfoImpl.java:166) at com.sun.xml.internal.bind.v2.runtime.JAXBContextImpl.getOrCreate(JAXBContextImpl.java:494) at com.sun.xml.internal.bind.v2.runtime.ClassBeanInfoImpl.(ClassBeanInfoImpl.java:153) at com.sun.xml.internal.bind.v2.runtime.JAXBContextImpl.getOrCreate(JAXBContextImpl.java:494) at com.sun.xml.internal.bind.v2.runtime.JAXBContextImpl.getOrCreate(JAXBContextImpl.java:513) at com.sun.xml.internal.bind.v2.runtime.property.ArrayReferenceNodeProperty.(ArrayReferenceNodeProperty.java:72) at com.sun.xml.internal.bind.v2.runtime.property.PropertyFactory.create(PropertyFactory.java:113) at com.sun.xml.internal.bind.v2.runtime.ClassBeanInfoImpl.(ClassBeanInfoImpl.java:166) at com.sun.xml.internal.bind.v2.runtime.JAXBContextImpl.getOrCreate(JAXBContextImpl.java:494) at com.sun.xml.internal.bind.v2.runtime.JAXBContextImpl.getOrCreate(JAXBContextImpl.java:513) at com.sun.xml.internal.bind.v2.runtime.property.ArrayReferenceNodeProperty.(ArrayReferenceNodeProperty.java:72) at com.sun.xml.internal.bind.v2.runtime.property.PropertyFactory.create(PropertyFactory.java:113) at com.sun.xml.internal.bind.v2.runtime.ClassBeanInfoImpl.(ClassBeanInfoImpl.java:166) at com.sun.xml.internal.bind.v2.runtime.JAXBContextImpl.getOrCreate(JAXBContextImpl.java:494) at com.sun.xml.internal.bind.v2.runtime.ClassBeanInfoImpl.(ClassBeanInfoImpl.java:153) at com.sun.xml.internal.bind.v2.runtime.JAXBContextImpl.getOrCreate(JAXBContextImpl.java:494) at com.sun.xml.internal.bind.v2.runtime.JAXBContextImpl.getOrCreate(JAXBContextImpl.java:513) at com.sun.xml.internal.bind.v2.runtime.property.SingleElementNodeProperty.(SingleElementNodeProperty.java:90) at com.sun.xml.internal.bind.v2.runtime.property.PropertyFactory.create(PropertyFactory.java:113) at com.sun.xml.internal.bind.v2.runtime.ClassBeanInfoImpl.(ClassBeanInfoImpl.java:166) at com.sun.xml.internal.bind.v2.runtime.JAXBContextImpl.getOrCreate(JAXBContextImpl.java:494) at com.sun.xml.internal.bind.v2.runtime.JAXBContextImpl.getOrCreate(JAXBContextImpl.java:513) at com.sun.xml.internal.bind.v2.runtime.property.ArrayElementProperty.(ArrayElementProperty.java:97) at com.sun.xml.internal.bind.v2.runtime.property.ArrayElementNodeProperty.(ArrayElementNodeProperty.java:47) at com.sun.xml.internal.bind.v2.runtime.property.PropertyFactory.create(PropertyFactory.java:113) at com.sun.xml.internal.bind.v2.runtime.ClassBeanInfoImpl.(ClassBeanInfoImpl.java:166) at com.sun.xml.internal.bind.v2.runtime.JAXBContextImpl.getOrCreate(JAXBContextImpl.java:494) at com.sun.xml.internal.bind.v2.runtime.JAXBContextImpl.(JAXBContextImpl.java:311) at com.sun.xml.internal.bind.v2.runtime.JAXBContextImpl.(JAXBContextImpl.java:126) at com.sun.xml.internal.bind.v2.runtime.JAXBContextImpl$JAXBContextBuilder.build(JAXBContextImpl.java:1142) at com.sun.xml.internal.bind.v2.ContextFactory.createContext(ContextFactory.java:130) at com.sun.xml.internal.bind.v2.ContextFactory.createContext(ContextFactory.java:221) at javax.xml.bind.ContextFinder.newInstance(ContextFinder.java:172) at javax.xml.bind.ContextFinder.newInstance(ContextFinder.java:132) at javax.xml.bind.ContextFinder.find(ContextFinder.java:347) at javax.xml.bind.JAXBContext.newInstance(JAXBContext.java:431) at javax.xml.bind.JAXBContext.newInstance(JAXBContext.java:394) at org.apache.camel.spring.handler.CamelNamespaceHandler.createJaxbContext(CamelNamespaceHandler.java:187) at org.apache.camel.spring.handler.CamelNamespaceHandler.getJaxbContext(CamelNamespaceHandler.java:174) at org.apache.camel.spring.handler.CamelNamespaceHandler$CamelContextBeanDefinitionParser.doParse(CamelNamespaceHandler.java:302) at grails.spring.DynamicElementReader.invokeMethod(DynamicElementReader.groovy:131) at RoutingGrailsPlugin$_closure1.doCall(RoutingGrailsPlugin.groovy:47) at grails.spring.BeanBuilder.invokeBeanDefiningClosure(BeanBuilder.java:736) at grails.spring.BeanBuilder.beans(BeanBuilder.java:569) at grails.spring.BeanBuilder.invokeMethod(BeanBuilder.java:511) at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334) at java.util.concurrent.FutureTask.run(FutureTask.java:166) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603) at java.lang.Thread.run(Thread.java:722)

[mtgleeson]

I've done a bit more investigation: I've tried downgrading to Grails 2.0.1 but still had the problem, downgrading the routing plugin to 1.2.0 but it still fails. I deleted the project and re-created it. Without the routing plugin it works fine, but once I've installed the routing plugin I still see the error. It's intermittent though, Grails doesn't fail every-time when I try to start the app. When it doesn't start-up everything seems to work fine. I have a couple of other Grails apps running without the problem so it seems to related to the routing plugin.

[mtgleeson]

Seems to be related to Camel and not the plugin itself. Underlying issue looks related to Java 7 - http://stackoverflow.com/questions/7810599/null-pointer-when-parsing-camelcontext-xml-file-during-startup and http://camel.465427.n5.nabble.com/Occational-NPE-in-CamelNamespaceHandler-td4726744.html. I've closed this off as it doesn't seem to be caused from the plugin itself.

[alxndrsn]

Just run into this after upgrading to Java 7 with Camel 2.9.4.

Apparently (from links provided above) Camel doesn't support Java 7(!), although newer versions may.