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Samebug tips

  1. ,
    Expert tip

    A few things cause this exception:
    1) Check if you have all jars and if they're in the correct path.
    2) Your classpath might be broken, you can define it in the command line with java -cp yourClassPath or at your IDE if you're using one.

  2. ,
    via netty.io by Unknown author

    Needs to add netty-transport-native-epoll with a OS classifier to the classpath, it's not included in netty-all

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java.lang.NoClassDefFoundError: o org/springframework/security/authentication/AuthenticationManager at java.lang.Class.getDeclaredMethods0(Native Method) at java.lang.Class.privateGetDeclaredMethods(Unknown Source) at java.lang.Class.getDeclaredMethods(Unknown Source) at org.springframework.util.ReflectionUtils.getDeclaredMethods(ReflectionUtils.java:613) at org.springframework.util.ReflectionUtils.doWithMethods(ReflectionUtils.java:524) at org.springframework.util.ReflectionUtils.doWithMethods(ReflectionUtils.java:510) at org.springframework.util.ReflectionUtils.getUniqueDeclaredMethods(ReflectionUtils.java:570) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.getTypeForFactoryMethod(AbstractAutowireCapableBeanFactory.java:697) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.determineTargetType(AbstractAutowireCapableBeanFactory.java:640) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.predictBeanType(AbstractAutowireCapableBeanFactory.java:609) at org.springframework.beans.factory.support.AbstractBeanFactory.isFactoryBean(AbstractBeanFactory.java:1484) at org.springframework.beans.factory.support.DefaultListableBeanFactory.doGetBeanNamesForType(DefaultListableBeanFactory.java:425) at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeanNamesForType(DefaultListableBeanFactory.java:395) at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeansOfType(DefaultListableBeanFactory.java:515) at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeansOfType(DefaultListableBeanFactory.java:508) at org.springframework.context.support.AbstractApplicationContext.getBeansOfType(AbstractApplicationContext.java:1189) at org.springframework.boot.SpringApplication.getExitCodeFromMappedException(SpringApplication.java:862) at org.springframework.boot.SpringApplication.getExitCodeFromException(SpringApplication.java:848) at org.springframework.boot.SpringApplication.handleExitCode(SpringApplication.java:834) at org.springframework.boot.SpringApplication.handleRunFailure(SpringApplication.java:788) at org.springframework.boot.SpringApplication.run(SpringApplication.java:325) at org.springframework.boot.SpringApplication.run(SpringApplication.java:1162) at org.springframework.boot.SpringApplication.run(SpringApplication.java:1151) at com.xxxxx.course.api.CourseApiApplication.main(CourseApiApplication.java:14)Caused by: java.lang.ClassNotFoundException: org.springframework.security.authentication.AuthenticationManager at java.net.URLClassLoader.findClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source) at java.lang.ClassLoader.loadClass(Unknown Source) ... 24 more