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https://issues.apache.org/jira/browse/FELIX-3003?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13052049#comment-13052049
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Torsten commented on FELIX-3003:
--------------------------------
Unfortunately I cannot provide our bundles for testing, but this is basically
what I am doing:
A standard java client (outside of Karaf) sends a ActiveMQObjectMessage that
contains classes defined in bundle A to a JMS broker running inside Karaf.
(I've installed the "activemq-blueprint" feature and created a local broker.)
Bundle A ("API") contains the domain objects. The Karaf headers command shows
essentially:
...
Tool = Bnd-1.15.0
Bundle-SymbolicName = my.api
Bundle-Version = 1.0.0.SNAPSHOT
Export-Package =
my.api;version=1.0.0,
...
Bundle B ("Service") defines a JMS Listener through a Spring configuration and
receives the ActiveMQObjectMessage from the local JMS broker.
...
Tool = Bnd-1.15.0
Bundle-SymbolicName = my.service
Bundle-Version = 1.0.0.SNAPSHOT
Import-Package =
my.api;resolution:=optional;version="[1.0,2)",
org.apache.activemq;resolution:=optional,
org.springframework.beans.factory.config;resolution:=optional;version="[3.0,4)",
org.springframework.jms.core;resolution:=optional,
...
Looking at the stacktrace, it looks like ActiveMQ tries to load the domain
class (via Class.forName) and Felix does not find "candidates for the
requirement" as seen in the source:
{code:title=ResolverImpl.java|borderStyle=solid}
ResolverImpl.permutateIfNeeded(
Map<Requirement, Set<Capability>> candidateMap, Requirement req,
List<Map<Requirement, Set<Capability>>> permutations) {
Set<Capability> candidates = candidateMap.get(req);
if (candidates.size() > 1) //<-- NPE is thrown here
{code}
I am not sure if this helps. Do you need other infos?
> NPE in ResolverImpl.permutateIfNeeded
> -------------------------------------
>
> Key: FELIX-3003
> URL: https://issues.apache.org/jira/browse/FELIX-3003
> Project: Felix
> Issue Type: Bug
> Components: Framework
> Affects Versions: framework-3.0.9
> Environment: karaf 2.2.1, activemq 5.5.0
> Reporter: Torsten
>
> After upgrade to Karaf 2.2.1, I noticed the following NPE in the Felix
> framework code:
> 14:31:54,306 | WARN | tenerContainer-1 | AbstractMessageListenerContainer
> 694 | b120 | Execution of JMS message listener failed, and no ErrorHandler
> has been set.
> java.lang.NullPointerException
> at
> org.apache.felix.framework.resolver.ResolverImpl.permutateIfNeeded(ResolverImpl.java:1156)
> at
> org.apache.felix.framework.resolver.ResolverImpl.checkPackageSpaceConsistency(ResolverImpl.java:1085)
> at
> org.apache.felix.framework.resolver.ResolverImpl.resolve(ResolverImpl.java:171)
> at
> org.apache.felix.framework.Felix$FelixResolver.resolve(Felix.java:4103)
> at
> org.apache.felix.framework.ModuleImpl.searchDynamicImports(ModuleImpl.java:1412)
> at
> org.apache.felix.framework.ModuleImpl.findClassOrResourceByDelegation(ModuleImpl.java:734)
> at org.apache.felix.framework.ModuleImpl.access$400(ModuleImpl.java:71)
> at
> org.apache.felix.framework.ModuleImpl$ModuleClassLoader.loadClass(ModuleImpl.java:1768)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:248)[:1.6.0_20]
> at java.lang.Class.forName0(Native Method)[:1.6.0_20]
> at java.lang.Class.forName(Class.java:247)[:1.6.0_20]
> at
> org.apache.activemq.util.ClassLoadingAwareObjectInputStream.load(ClassLoadingAwareObjectInputStream.java:63)
> at
> org.apache.activemq.util.ClassLoadingAwareObjectInputStream.resolveClass(ClassLoadingAwareObjectInputStream.java:37)
> at
> java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1575)[:1.6.0_20]
> at
> java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1496)[:1.6.0_20]
> at
> java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1732)[:1.6.0_20]
> at
> java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)[:1.6.0_20]
> at
> java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947)[:1.6.0_20]
> at
> java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871)[:1.6.0_20]
> at
> java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753)[:1.6.0_20]
> at
> java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)[:1.6.0_20]
> at
> java.io.ObjectInputStream.readObject(ObjectInputStream.java:351)[:1.6.0_20]
> at java.util.ArrayList.readObject(ArrayList.java:593)[:1.6.0_20]
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native
> Method)[:1.6.0_20]
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)[:1.6.0_20]
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)[:1.6.0_20]
> at java.lang.reflect.Method.invoke(Method.java:597)[:1.6.0_20]
> at
> java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:974)[:1.6.0_20]
> at
> java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1849)[:1.6.0_20]
> at
> java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753)[:1.6.0_20]
> at
> java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)[:1.6.0_20]
> at
> java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1947)[:1.6.0_20]
> at
> java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1871)[:1.6.0_20]
> at
> java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1753)[:1.6.0_20]
> at
> java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1329)[:1.6.0_20]
> at
> java.io.ObjectInputStream.readObject(ObjectInputStream.java:351)[:1.6.0_20]
> at
> org.apache.activemq.command.ActiveMQObjectMessage.getObject(ActiveMQObjectMessage.java:184)[103:org.apache.activemq.activemq-core:5.5.0]
> at
> org.springframework.jms.support.converter.SimpleMessageConverter.extractSerializableFromMessage(SimpleMessageConverter.java:215)[120:org.springframework.jms:3.0.5.RELEASE]
> at
> org.springframework.jms.support.converter.SimpleMessageConverter.fromMessage(SimpleMessageConverter.java:103)[120:org.springframework.jms:3.0.5.RELEASE]
> at
> org.springframework.jms.listener.adapter.MessageListenerAdapter.extractMessage(MessageListenerAdapter.java:407)[120:org.springframework.jms:3.0.5.RELEASE]
> at
> org.springframework.jms.listener.adapter.MessageListenerAdapter.onMessage(MessageListenerAdapter.java:345)[120:org.springframework.jms:3.0.5.RELEASE]
> at
> org.springframework.jms.listener.AbstractMessageListenerContainer.doInvokeListener(AbstractMessageListenerContainer.java:535)[120:org.springframework.jms:3.0.5.RELEASE]
> at
> org.springframework.jms.listener.AbstractMessageListenerContainer.invokeListener(AbstractMessageListenerContainer.java:495)[120:org.springframework.jms:3.0.5.RELEASE]
> at
> org.springframework.jms.listener.AbstractMessageListenerContainer.doExecuteListener(AbstractMessageListenerContainer.java:467)[120:org.springframework.jms:3.0.5.RELEASE]
> at
> org.springframework.jms.listener.AbstractPollingMessageListenerContainer.doReceiveAndExecute(AbstractPollingMessageListenerContainer.java:325)[120:org.springframework.jms:3.0.5.RELEASE]
> at
> org.springframework.jms.listener.AbstractPollingMessageListenerContainer.receiveAndExecute(AbstractPollingMessageListenerContainer.java:263)[120:org.springframework.jms:3.0.5.RELEASE]
> at
> org.springframework.jms.listener.DefaultMessageListenerContainer$AsyncMessageListenerInvoker.invokeListener(DefaultMessageListenerContainer.java:1058)[120:org.springframework.jms:3.0.5.RELEASE]
> at
> org.springframework.jms.listener.DefaultMessageListenerContainer$AsyncMessageListenerInvoker.executeOngoingLoop(DefaultMessageListenerContainer.java:1050)[120:org.springframework.jms:3.0.5.RELEASE]
> at
> org.springframework.jms.listener.DefaultMessageListenerContainer$AsyncMessageListenerInvoker.run(DefaultMessageListenerContainer.java:947)[120:org.springframework.jms:3.0.5.RELEASE]
> at java.lang.Thread.run(Thread.java:619)[:1.6.0_20]
> I guess there is nothing I can do except downgrading to karaf 2.2.0? Any
> other ideas?
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