NullPointerException for runtime manager

[meetoblivion]

All,

I'm getting the following nullpointer exception, following a simple example on github: https://github.com/mswiderski/jbpm-examples/tree/master/jbpm6/jbpm-sample-cdi

java.lang.NullPointerException

  at java.util.concurrent.ConcurrentHashMap.hash(ConcurrentHashMap.java:333)

  at java.util.concurrent.ConcurrentHashMap.containsKey(ConcurrentHashMap.java:1016)

  at org.kie.internal.runtime.manager.RuntimeManagerRegistry.isRegistered(RuntimeManagerRegistry.java:43)

  at org.jbpm.runtime.manager.impl.AbstractRuntimeManager.<init>(AbstractRuntimeManager.java:68)

  at org.jbpm.runtime.manager.impl.SingletonRuntimeManager.<init>(SingletonRuntimeManager.java:66)

  at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)

  at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)

  at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)

  at java.lang.reflect.Constructor.newInstance(Constructor.java:526)

  at org.jboss.weld.introspector.jlr.WeldConstructorImpl.newInstance(WeldConstructorImpl.java:206)

  at org.jboss.weld.injection.ConstructorInjectionPoint.newInstance(ConstructorInjectionPoint.java:117)

  at org.jboss.weld.bean.ManagedBean.createInstance(ManagedBean.java:336)

  at org.jboss.weld.bean.ManagedBean$ManagedBeanInjectionTarget.produce(ManagedBean.java:200)

  at org.jboss.weld.bean.ManagedBean.create(ManagedBean.java:292)

  at org.jboss.weld.context.unbound.DependentContextImpl.get(DependentContextImpl.java:68)

  at org.jboss.weld.manager.BeanManagerImpl.getReference(BeanManagerImpl.java:608)

  at org.jboss.weld.manager.BeanManagerImpl.getReference(BeanManagerImpl.java:674)

  at org.jboss.weld.injection.FieldInjectionPoint.inject(FieldInjectionPoint.java:136)

  at org.jboss.weld.util.Beans.injectBoundFields(Beans.java:763)

  at org.jboss.weld.util.Beans.injectFieldsAndInitializers(Beans.java:772)

  at org.jboss.weld.bean.ManagedBean$ManagedBeanInjectionTarget$1$1.proceed(ManagedBean.java:161)

  at org.jboss.weld.injection.InjectionContextImpl.run(InjectionContextImpl.java:48)

  at org.jboss.weld.bean.ManagedBean$ManagedBeanInjectionTarget$1.work(ManagedBean.java:157)

  at org.jboss.weld.bean.ManagedBean$FixInjectionPoint.run(ManagedBean.java:131)

  at org.jboss.weld.bean.ManagedBean$ManagedBeanInjectionTarget.inject(ManagedBean.java:153)

  at org.jboss.weld.bean.ManagedBean.create(ManagedBean.java:293)

  at org.jboss.weld.context.AbstractContext.get(AbstractContext.java:103)

  at org.jboss.weld.bean.proxy.ContextBeanInstance.getInstance(ContextBeanInstance.java:90)

  at org.jboss.weld.bean.proxy.ProxyMethodHandler.invoke(ProxyMethodHandler.java:79)

Searches on this stacktrace seem to indicate that the key in the map is null.  How do I ensure that a key is present?

[swiderski.maciej]

it might be that the sample is outdated though identifier of runtime manager should never be null. I'll check that up and fix the sample, thanks for reporting that

HTH

[meetoblivion]

So just wondering about a next step here...

Is it possible for me to add something that will make this go away?    

[swiderski.maciej]

just tried the sample projects and they do work without an issue. What version of jbpm are you running on?

HTH