java.lang.ClassCastException: StandaloneInMemProcessEngineConfiguration cannot be cast to org.activiti.spring.SpringProcessEngin

[olegv]

I am using org.activiti.engine.impl.cfg.StandaloneInMemProcessEngineConfiguration to instantiate processEngineConfiguration bean for unit testing purposes. But after upgrade to activiti 5.17.0 i got the ClassCastException.

Here is my activiti.cfg.xml

    <bean name="processEngineConfiguration" class="org.activiti.engine.impl.cfg.StandaloneInMemProcessEngineConfiguration" />
    <bean id="processEngine" class="org.activiti.spring.ProcessEngineFactoryBean">
        <property name="processEngineConfiguration" ref="processEngineConfiguration" />
    </bean>
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Seems like in activiti-spring sources there used to be a condition

    ProcessEngineFactoryBean.java
        if (processEngineConfiguration instanceof SpringProcessEngineConfiguration) { // remark: any config can be injected, so we cannot have SpringConfiguration as member
            SpringProcessEngineConfiguration engineConfiguration = (SpringProcessEngineConfiguration) processEngineConfiguration;
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But now the configuration is always cast

QUESTION: Is there a valid way to instantiate the in memory configuration with StandaloneInMemProcessEngineConfiguration?

[jbarrez]

Seems to be related to https://github.com/Activiti/Activiti/pull/519 ?

[olegv]

Yep, it is the same! Just curious is this going to be released soon? 5.17.1? Or it makes sense to look for a workaround?

[jbarrez]

Most likely we'll have a 5.18, but not soon.

The workaround is to create your own Configuration class now, which isn't that hard, and use the fixed one in a new release.

[cirerenat]

When is 5.18 going to be released?

[jbarrez]

We've planned it for July. Needs some big commits first before we can wrap up this (big) release

[keymaster]

Is there a roadmap for this and other releases?

[jbarrez]

5.18 is still planned for the end of this month.

After that, we'll work on v6 and port fixes to v5. More info about v6 -> http://www.jorambarrez.be/blog/2015/06/18/activiti-6-launch/