topic NullPointerException in SpringBeanFactoryProxyMap.containsKey in Alfresco Archive

NullPointerException in SpringBeanFactoryProxyMap.containsKey

sergey_p — Tue, 25 Aug 2015 15:02:54 GMT

Hello,I'm experiencing a NPE when adding script task to a process in a Spring web application.The process itself is pretty complicated, but runs w/o any issues except for this.Here's the stacktrace:25 Aug 2015 17:43:48 DEBUG org.activiti.engine.impl.interceptor.CommandContext - Error while closing

Re: NullPointerException in SpringBeanFactoryProxyMap.containsKey

vasile_dirla — Tue, 25 Aug 2015 18:05:11 GMT

Hi,
is it possible to you to deliver a unit test which will show this behaviour ?
(this will be useful to see your config, and also will be easier to investigate)

About the NPE issue.. it seems the spring's applicationContext is not injected for some reasons.

usually this listener in your web.xml is necessary to do it, unless you are using the servlet style.

<code>
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>
</code>

If you will provide a unit test, it will be precious.

Re: NullPointerException in SpringBeanFactoryProxyMap.containsKey

sergey_p — Fri, 04 Sep 2015 15:49:50 GMT

To anyone facing the same issue, I figured it out: turns out, I haven't provided Activiti w/Spring context. It's precisely the application context that's acting as bean factory in this case, which is null, unless provided to process engine. Here's the fix:

<java>
@Configuration
public class ActivitiConfig implements ApplicationContextAware {
    …
    @Bean
    public ProcessEngine processEngine() throws Exception {
        ProcessEngineFactoryBean factory = new ProcessEngineFactoryBean();
        factory.setApplicationContext(ac); // provide Spring app. context to process engine
        factory.setProcessEngineConfiguration(
                (ProcessEngineConfigurationImpl) activitiEngineConfiguration());
        return factory.getObject();
    }
    …
}
</java>