I added a null-check in the method getInjectionBeanValue of the 
CamelPostProcessorHelper and that seemed to solve it:

if (camelContext != null && type.isAssignableFrom(camelContext.getClass())) {
    return camelContext;
}


> Op 31 jan. 2020, om 17:13 heeft Remco Schoen <r.sch...@topdesk.com> het 
> volgende geschreven:
> 
> Hi,
> 
> When testing if I can use Camel 3, I’m getting a NullPointerException when 
> trying to start Camel.
> 
> Part of the stacktrace:
> 
> Exception in thread "main" org.apache.camel.RuntimeCamelException: 
> org.springframework.beans.factory.BeanCreationException: Error creating bean 
> with name 'route.dlc.ErrorRoutes': Initialization of bean failed; nested 
> exception is org.apache.camel.spring.GenericBeansException: Error post 
> processing bean: route.dlc.ErrorRoutes; nested exception is 
> java.lang.NullPointerException
> 
> Caused by: java.lang.NullPointerException
>       at 
> org.apache.camel.impl.engine.CamelPostProcessorHelper.getInjectionBeanValue(CamelPostProcessorHelper.java:292)
>       at 
> org.apache.camel.impl.engine.DefaultCamelBeanPostProcessor.injectFieldBean(DefaultCamelBeanPostProcessor.java:234)
>       at 
> org.apache.camel.impl.engine.DefaultCamelBeanPostProcessor.lambda$injectFields$0(DefaultCamelBeanPostProcessor.java:192)
>       at 
> org.apache.camel.util.ReflectionHelper.doWithFields(ReflectionHelper.java:108)
>       at 
> org.apache.camel.impl.engine.DefaultCamelBeanPostProcessor.injectFields(DefaultCamelBeanPostProcessor.java:184)
>       at 
> org.apache.camel.impl.engine.DefaultCamelBeanPostProcessor.postProcessBeforeInitialization(DefaultCamelBeanPostProcessor.java:95)
>       at 
> org.apache.camel.spring.CamelBeanPostProcessor.postProcessBeforeInitialization(CamelBeanPostProcessor.java:162)
>       ... 30 more
> 
> I’m using the Spring Main class to run camel.
> 
> Any clue what could be wrong? 
> I’m trying to create a simple test-case.
> 
> Kind regards,
> 
> Remco Schoen

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