Github user patricker commented on the issue:
https://github.com/apache/nifi/pull/1478
@joewitt @pvillard31 I made the changes and squashed the commits since
about 50% of my changes were basically rolled back to the original code.
One issue... it doesn't work anymore. I'm looking for a little guidance on
what I might have missed (of course since there is no functional change maybe
it never worked and I was testing with an old build?). The error makes it sound
like it's a standard, 'can't find your class' error. Since the code all lives
in the same JAR I added a resource file to register the interface and class
(it's in the commit), which made no difference.
Here is the stack trace I'm getting:
> Caused by: org.springframework.beans.factory.BeanCreationException: Error
creating bean with name 'flowService': FactoryBean threw exception on object
creation; nested exception is
org.springframework.beans.factory.BeanCreationException: Error creating bean
with name 'flowController': FactoryBean threw exception on object creation;
nested exception is java.lang.RuntimeException: Unable to create Flow
Configuration DAO
at
org.springframework.beans.factory.support.FactoryBeanRegistrySupport.doGetObjectFromFactoryBean(FactoryBeanRegistrySupport.java:175)
~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE]
at
org.springframework.beans.factory.support.FactoryBeanRegistrySupport.getObjectFromFactoryBean(FactoryBeanRegistrySupport.java:103)
~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE]
at
org.springframework.beans.factory.support.AbstractBeanFactory.getObjectForBeanInstance(AbstractBeanFactory.java:1585)
~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE]
at
org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:317)
~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE]
at
org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202)
~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE]
at
org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1060)
~[spring-context-4.2.4.RELEASE.jar:4.2.4.RELEASE]
at
org.apache.nifi.web.contextlistener.ApplicationStartupContextListener.contextInitialized(ApplicationStartupContextListener.java:53)
~[na:na]
... 28 common frames omitted
Caused by: org.springframework.beans.factory.BeanCreationException: Error
creating bean with name 'flowController': FactoryBean threw exception on object
creation; nested exception is java.lang.RuntimeException: Unable to create Flow
Configuration DAO
at
org.springframework.beans.factory.support.FactoryBeanRegistrySupport.doGetObjectFromFactoryBean(FactoryBeanRegistrySupport.java:175)
~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE]
at
org.springframework.beans.factory.support.FactoryBeanRegistrySupport.getObjectFromFactoryBean(FactoryBeanRegistrySupport.java:103)
~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE]
at
org.springframework.beans.factory.support.AbstractBeanFactory.getObjectForBeanInstance(AbstractBeanFactory.java:1585)
~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE]
at
org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:317)
~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE]
at
org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202)
~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE]
at
org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1060)
~[spring-context-4.2.4.RELEASE.jar:4.2.4.RELEASE]
at
org.apache.nifi.spring.StandardFlowServiceFactoryBean.getObject(StandardFlowServiceFactoryBean.java:48)
~[nifi-framework-core-1.2.0-SNAPSHOT.jar:1.2.0-SNAPSHOT]
at
org.springframework.beans.factory.support.FactoryBeanRegistrySupport.doGetObjectFromFactoryBean(FactoryBeanRegistrySupport.java:168)
~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE]
... 34 common frames omitted
Caused by: java.lang.RuntimeException: Unable to create Flow Configuration
DAO
at
org.apache.nifi.controller.FlowController.<init>(FlowController.java:480)
~[nifi-framework-core-1.2.0-SNAPSHOT.jar:1.2.0-SNAPSHOT]
at
org.apache.nifi.controller.FlowController.createStandaloneInstance(FlowController.java:378)
~[nifi-framework-core-1.2.0-SNAPSHOT.jar:1.2.0-SNAPSHOT]
at
org.apache.nifi.spring.FlowControllerFactoryBean.getObject(FlowControllerFactoryBean.java:74)
~[nifi-framework-core-1.2.0-SNAPSHOT.jar:1.2.0-SNAPSHOT]
at
org.springframework.beans.factory.support.FactoryBeanRegistrySupport.doGetObjectFromFactoryBean(FactoryBeanRegistrySupport.java:168)
~[spring-beans-4.2.4.RELEASE.jar:4.2.4.RELEASE]
... 41 common frames omitted
Caused by: java.lang.RuntimeException: java.lang.ClassNotFoundException:
org.apache.nifi.persistence.StandardXMLFlowConfigurationDAO
at
org.apache.nifi.controller.FlowController.createFlowConfigurationDAO(FlowController.java:851)
~[nifi-framework-core-1.2.0-SNAPSHOT.jar:1.2.0-SNAPSHOT]
at
org.apache.nifi.controller.FlowController.<init>(FlowController.java:478)
~[nifi-framework-core-1.2.0-SNAPSHOT.jar:1.2.0-SNAPSHOT]
... 44 common frames omitted
Caused by: java.lang.ClassNotFoundException:
org.apache.nifi.persistence.StandardXMLFlowConfigurationDAO
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
~[na:1.8.0_91]
at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[na:1.8.0_91]
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
~[na:1.8.0_91]
at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[na:1.8.0_91]
at java.lang.Class.forName0(Native Method) ~[na:1.8.0_91]
at java.lang.Class.forName(Class.java:264) ~[na:1.8.0_91]
at
org.apache.nifi.nar.NarThreadContextClassLoader.createInstance(NarThreadContextClassLoader.java:194)
~[nifi-nar-utils-1.2.0-SNAPSHOT.jar:1.2.0-SNAPSHOT]
at
org.apache.nifi.controller.FlowController.createFlowConfigurationDAO(FlowController.java:845)
~[nifi-framework-core-1.2.0-SNAPSHOT.jar:1.2.0-SNAPSHOT]
... 45 common frames omitted
---
If your project is set up for it, you can reply to this email and have your
reply appear on GitHub as well. If your project does not have this feature
enabled and wishes so, or if the feature is enabled but not working, please
contact infrastructure at infrastruct...@apache.org or file a JIRA ticket
with INFRA.
---
