thenatog commented on PR #5972:
URL: https://github.com/apache/nifi/pull/5972#issuecomment-1101792688

   I've noticed that I had an issue running a secure cluster and NiFi cannot 
start successfully with my existing configurations (appears related to identity 
providers):
   
   `2022-04-18 16:50:35,325 ERROR [main] o.s.web.context.ContextLoader Context 
initialization failed
   org.springframework.beans.factory.BeanCreationException: Error creating bean 
with name 'loginIdentityProvider' defined in 
org.apache.nifi.web.security.configuration.AuthenticationSecurityConfiguration: 
Bean instantiation via factory method failed; nested exception is 
org.springframework.beans.BeanInstantiationException: Failed to instantiate 
[java.lang.Object]: Factory method 'loginIdentityProvider' threw exception; 
nested exception is java.lang.ClassCastException: 
org.springframework.beans.factory.support.NullBean cannot be cast to 
org.apache.nifi.authentication.LoginIdentityProvider
        at 
org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:658)
        at 
org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:486)
        at 
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1352)
        at 
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1195)
        at 
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:582)
        at 
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:542)
        at 
org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335)
        at 
org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234)
        at 
org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333)
        at 
org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208)
        at 
org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:953)
        at 
org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:918)
        at 
org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:583)
        at 
org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:401)
        at 
org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:292)
        at 
org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:103)
        at 
org.eclipse.jetty.server.handler.ContextHandler.callContextInitialized(ContextHandler.java:1073)
        at 
org.eclipse.jetty.servlet.ServletContextHandler.callContextInitialized(ServletContextHandler.java:572)
        at 
org.eclipse.jetty.server.handler.ContextHandler.contextInitialized(ContextHandler.java:1002)
        at 
org.eclipse.jetty.servlet.ServletHandler.initialize(ServletHandler.java:746)
        at 
org.eclipse.jetty.servlet.ServletContextHandler.startContext(ServletContextHandler.java:379)
        at 
org.eclipse.jetty.webapp.WebAppContext.startWebapp(WebAppContext.java:1449)
        at 
org.eclipse.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1414)
        at 
org.eclipse.jetty.server.handler.ContextHandler.doStart(ContextHandler.java:916)
        at 
org.eclipse.jetty.servlet.ServletContextHandler.doStart(ServletContextHandler.java:288)
        at 
org.eclipse.jetty.webapp.WebAppContext.doStart(WebAppContext.java:524)
        at 
org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:73)
        at 
org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:169)
        at 
org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:117)
        at 
org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:97)
        at 
org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:73)
        at 
org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:169)
        at 
org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:110)
        at 
org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:97)
        at 
org.eclipse.jetty.server.handler.gzip.GzipHandler.doStart(GzipHandler.java:426)
        at 
org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:73)
        at 
org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:169)
        at 
org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:117)
        at 
org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:97)
        at 
org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:73)
        at 
org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:169)
        at 
org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:117)
        at 
org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:97)
        at 
org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:73)
        at 
org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:169)
        at org.eclipse.jetty.server.Server.start(Server.java:423)
        at 
org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:110)
        at 
org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:97)
        at org.eclipse.jetty.server.Server.doStart(Server.java:387)
        at 
org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:73)
        at org.apache.nifi.web.server.JettyServer.start(JettyServer.java:1052)
        at org.apache.nifi.NiFi.<init>(NiFi.java:170)
        at org.apache.nifi.NiFi.<init>(NiFi.java:82)
        at org.apache.nifi.NiFi.main(NiFi.java:330)
   Caused by: org.springframework.beans.BeanInstantiationException: Failed to 
instantiate [java.lang.Object]: Factory method 'loginIdentityProvider' threw 
exception; nested exception is java.lang.ClassCastException: 
org.springframework.beans.factory.support.NullBean cannot be cast to 
org.apache.nifi.authentication.LoginIdentityProvider
        at 
org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:185)
        at 
org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:653)
        ... 53 common frames omitted
   Caused by: java.lang.ClassCastException: 
org.springframework.beans.factory.support.NullBean cannot be cast to 
org.apache.nifi.authentication.LoginIdentityProvider
        at 
org.apache.nifi.web.security.spring.LoginIdentityProviderFactoryBean$$EnhancerBySpringCGLIB$$3e2a6f6e.getObject(<generated>)
        at 
org.apache.nifi.web.security.configuration.AuthenticationSecurityConfiguration.loginIdentityProvider(AuthenticationSecurityConfiguration.java:70)
        at 
org.apache.nifi.web.security.configuration.AuthenticationSecurityConfiguration$$EnhancerBySpringCGLIB$$a97fddc8.CGLIB$loginIdentityProvider$3(<generated>)
        at 
org.apache.nifi.web.security.configuration.AuthenticationSecurityConfiguration$$EnhancerBySpringCGLIB$$a97fddc8$$FastClassBySpringCGLIB$$6dfd4e89.invoke(<generated>)
        at 
org.springframework.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:244)
        at 
org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:331)
        at 
org.apache.nifi.web.security.configuration.AuthenticationSecurityConfiguration$$EnhancerBySpringCGLIB$$a97fddc8.loginIdentityProvider(<generated>)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at 
org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:154)
        ... 54 common frames omitted`


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