问题
In a clean Camel project I add the following dependency:
<dependency>
<groupId>org.apache.camel</groupId>
<artifactId>camel-jsonpath</artifactId>
<version>2.16.1</version>
</dependency>
When I run the project I get the below error. If I remove that dependency it works. I have tried this on two different projects and the same happens. Anything else that has to be added to the pom for jsonpath to work? It seems to complain for ASM?
[INFO] Using org.apache.camel.test.blueprint.Main to initiate a CamelContext
[INFO] Starting Camel ...
[mel.test.blueprint.Main.main()] Activator INFO Camel activator starting
[mel.test.blueprint.Main.main()] Activator INFO Camel activator started
[ Blueprint Extender: 1] BlueprintContainerImpl INFO Bundle INT001_GetPostcodeDataFromXXX/0.0.1.SNAPSHOT is waiting for namespace handlers [http://camel.apache.org/schema/blueprint]
EventDispatcher: Error during dispatch.
EventDispatcher: Error during dispatch.
EventDispatcher: Error during dispatch.
EventDispatcher: Error during dispatch.
EventDispatcher: Error during dispatch.
org.osgi.framework.ServiceException: Service factory exception: org/objectweb/asm/commons/AdviceAdapter
at org.apache.felix.connect.felix.framework.ServiceRegistrationImpl.getFactoryUnchecked(ServiceRegistrationImpl.java:246)
at org.apache.felix.connect.felix.framework.ServiceRegistrationImpl.getService(ServiceRegistrationImpl.java:178)
at org.apache.felix.connect.felix.framework.ServiceRegistry.getService(ServiceRegistry.java:323)
at org.apache.felix.connect.PojoSRBundleContext.getService(PojoSRBundleContext.java:162)
at org.apache.aries.blueprint.namespace.NamespaceHandlerRegistryImpl.addingService(NamespaceHandlerRegistryImpl.java:113)
at org.osgi.util.tracker.ServiceTracker$Tracked.customizerAdding(ServiceTracker.java:932)
at org.osgi.util.tracker.ServiceTracker$Tracked.customizerAdding(ServiceTracker.java:864)
at org.osgi.util.tracker.AbstractTracked.trackAdding(AbstractTracked.java:256)
at org.osgi.util.tracker.AbstractTracked.track(AbstractTracked.java:229)
at org.osgi.util.tracker.ServiceTracker$Tracked.serviceChanged(ServiceTracker.java:894)
at org.apache.felix.connect.felix.framework.util.EventDispatcher.invokeServiceListenerCallback(EventDispatcher.java:852)
at org.apache.felix.connect.felix.framework.util.EventDispatcher.fireEventImmediately(EventDispatcher.java:775)
at org.apache.felix.connect.felix.framework.util.EventDispatcher.fireServiceEvent(EventDispatcher.java:594)
at org.apache.felix.connect.PojoSR$1.serviceChanged(PojoSR.java:78)
at org.apache.felix.connect.felix.framework.ServiceRegistry.registerService(ServiceRegistry.java:130)
at org.apache.felix.connect.PojoSRBundleContext.registerService(PojoSRBundleContext.java:101)
at org.apache.aries.blueprint.container.BlueprintContainerImpl.registerService(BlueprintContainerImpl.java:453)
at org.apache.aries.blueprint.container.ServiceRecipe.register(ServiceRecipe.java:193)
at org.apache.aries.blueprint.container.BlueprintContainerImpl.registerServices(BlueprintContainerImpl.java:704)
at org.apache.aries.blueprint.container.BlueprintContainerImpl.doRun(BlueprintContainerImpl.java:379)
at org.apache.aries.blueprint.container.BlueprintContainerImpl.run(BlueprintContainerImpl.java:269)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at org.apache.aries.blueprint.container.ExecutorServiceWrapper.run(ExecutorServiceWrapper.java:106)
at org.apache.aries.blueprint.utils.threading.impl.DiscardableRunnable.run(DiscardableRunnable.java:48)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.NoClassDefFoundError: org/objectweb/asm/commons/AdviceAdapter
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:760)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:467)
at java.net.URLClassLoader.access$100(URLClassLoader.java:73)
at java.net.URLClassLoader$1.run(URLClassLoader.java:368)
at java.net.URLClassLoader$1.run(URLClassLoader.java:362)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:361)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
at org.apache.aries.proxy.impl.interfaces.ProxyClassLoader.createProxyClass(ProxyClassLoader.java:146)
at org.apache.aries.proxy.impl.interfaces.InterfaceProxyGenerator.getProxyInstance(InterfaceProxyGenerator.java:95)
at org.apache.aries.proxy.impl.AsmProxyManager.createNewProxy(AsmProxyManager.java:80)
at org.apache.aries.proxy.impl.AbstractProxyManager.createDelegatingInterceptingProxy(AbstractProxyManager.java:75)
at org.apache.aries.proxy.impl.AbstractProxyManager.createInterceptingProxy(AbstractProxyManager.java:53)
at org.apache.aries.blueprint.container.ServiceRecipe$TriggerServiceFactory.getService(ServiceRecipe.java:569)
at org.apache.felix.connect.felix.framework.ServiceRegistrationImpl.getFactoryUnchecked(ServiceRegistrationImpl.java:242)
... 31 more
Caused by: java.lang.ClassNotFoundException: org.objectweb.asm.commons.AdviceAdapter
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
... 49 more
org.osgi.framework.ServiceException: Service factory exception: org/objectweb/asm/commons/AdviceAdapter
at org.apache.felix.connect.felix.framework.ServiceRegistrationImpl.getFactoryUnchecked(ServiceRegistrationImpl.java:246)
at org.apache.felix.connect.felix.framework.ServiceRegistrationImpl.getService(ServiceRegistrationImpl.java:178)
at org.apache.felix.connect.felix.framework.ServiceRegistry.getService(ServiceRegistry.java:323)
at org.apache.felix.connect.PojoSRBundleContext.getService(PojoSRBundleContext.java:162)
at org.apache.aries.blueprint.namespace.NamespaceHandlerRegistryImpl.addingService(NamespaceHandlerRegistryImpl.java:113)
at org.osgi.util.tracker.ServiceTracker$Tracked.customizerAdding(ServiceTracker.java:932)
at org.osgi.util.tracker.ServiceTracker$Tracked.customizerAdding(ServiceTracker.java:864)
at org.osgi.util.tracker.AbstractTracked.trackAdding(AbstractTracked.java:256)
at org.osgi.util.tracker.AbstractTracked.track(AbstractTracked.java:229)
at org.osgi.util.tracker.ServiceTracker$Tracked.serviceChanged(ServiceTracker.java:894)
at org.apache.felix.connect.felix.framework.util.EventDispatcher.invokeServiceListenerCallback(EventDispatcher.java:852)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.NoClassDefFoundError: org/objectweb/asm/commons/AdviceAdapter
Edit: After adding:
<dependency>
<groupId>org.ow2.asm</groupId>
<artifactId>asm-commons</artifactId>
<version>5.0.3</version>
<scope>runtime</scope>
</dependency>
It worked but doubt this is the correct way. The camel-component should get all the dependent jars.
回答1:
I posted this on the Camel nabble forum and indeed it seems you need to add the asm dependency to get it to work.
http://camel.465427.n5.nabble.com/Error-with-Camel-component-camel-jsonpath-td5777201.html
<dependency>
<groupId>org.ow2.asm</groupId>
<artifactId>asm-commons</artifactId>
<version>5.0.3</version>
<scope>runtime</scope>
</dependency>
回答2:
the pom.xml are about compile-time dependencies. You have a runtime error about a missing dependency (org.objectweb.asm). You should add it to your container.
In your stack traces : a new service is registered in a blueprint context. this service is then injected in another blueprint context. for this service, the blueprint container want to wrap it in a new proxy, and to create this kind of proxy, aries blueprint need org.objectweb.asm. i don't think this error is directly related to camel-jsonpath.
回答3:
In my case, back when asm-commons with version 5.0.3 was used, I was still getting some error. As an altetrnative to previous answer, asm-all artifact can be used instead, since it includes other dependencies that in my scenario were breaking otherwise.
<dependency>
<groupId>org.ow2.asm</groupId>
<artifactId>asm-all</artifactId>
<scope>runtime</scope>
</dependency>
However, regarding deployment, it seems quite impossible to integrate the project using this dependency to Fabric8 (no errors on console log and containers do not start), so not sure if there is a better alternative with a sort of camel-jsonpath feature.
Hope it helps someone.
来源：https://stackoverflow.com/questions/35176594/component-camel-jsonpath-gives-error-after-adding-to-pom-file