Failed to instantiate flowable.engine.RuntimeService ,Migration from Activiti 5 to Flowable 6

Flowable Engine
1

I am migrating from Activiti 5 to Flowable 6 and encountering an issue when initializing RuntimeService. Despite having all necessary libraries imported and Flowable 5 compatibility enabled, I receive the following error:

*Error:

Failed to instantiate [org.flowable.engine.RuntimeService]: Factory method 'runtimeService' threw exception with message: Unsupported process engine configuration.

Additional Details:

  • Dependencies: The flowable5-compatibility and other Flowable libraries are correctly added to the pom.xml.
  • Configuration: Flowable 5 compatibility is enabled in the SpringProcessEngineConfiguration.
  • Database: I am using pre-existing Activiti 5 tables and have some ongoing processes.

Spring Configuration:

Here is the relevant configuration I am using:

@Configuration
public class FlowableConfiguration {
    //... other beans and configuration

    @Bean
    public DefaultFlowable5CompatibilityHandler flowable5CompatibilityHandler() {
        return new DefaultFlowable5CompatibilityHandler();
    }

    @Bean
    public SpringProcessEngineConfiguration springProcessEngineConfiguration(
            DataSource dataSource,
            PlatformTransactionManager transactionManager,
            DefaultAsyncJobExecutor asyncJobExecutor,
            DefaultFlowable5CompatibilityHandler flowable5CompatibilityHandler) throws IOException {

        SpringProcessEngineConfiguration config = new SpringProcessEngineConfiguration();
        config.setDataSource(dataSource);
        config.setTransactionManager(transactionManager);
        config.setDatabaseSchemaUpdate(SpringProcessEngineConfiguration.DB_SCHEMA_UPDATE_TRUE);
        config.setFlowable5CompatibilityEnabled(true);
        config.setFlowable5CompatibilityHandler(flowable5CompatibilityHandler);
        return config;
    }

    @Bean
    public RuntimeService runtimeService(ProcessEngineFactoryBean processEngine) throws Exception {
        return processEngine.getObject().getRuntimeService();
    }
}

Any suggestions on how to resolve this issue? Are there additional steps I should take to ensure full compatibility and proper functioning of Flowable services?

Any help or guidance would be greatly appreciated. Thanks in advance!

2

Hey @Otto,

The reason why you are seeing that error is due to the fact that you are using DefaultFlowable5CompatibilityHandler , which only supports the StandaloneProcessEngineConfiguration. You should instead use SpringFlowable5CompatibilityHandlerFactory.

Cheers,
Filip

1 Like
3

Thank you :slight_smile: