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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 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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o org/springframework/security/authentication/AuthenticationManager
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java.lang.ClassNotFoundException:	at	at java.lang.ClassLoader.loadClass(	at sun.misc.Launcher$AppClassLoader.loadClass(	at java.lang.ClassLoader.loadClass(	at java.lang.Class.getDeclaredMethods0(Native Method)	at java.lang.Class.privateGetDeclaredMethods(	at java.lang.Class.getDeclaredMethods(	at org.springframework.util.ReflectionUtils.getDeclaredMethods(	at org.springframework.util.ReflectionUtils.doWithMethods(	at org.springframework.util.ReflectionUtils.doWithMethods(	at org.springframework.util.ReflectionUtils.getUniqueDeclaredMethods(	at	at	at	at	at	at	at	at	at	at org.springframework.boot.SpringApplication.getExitCodeFromMappedException(	at org.springframework.boot.SpringApplication.getExitCodeFromException(	at org.springframework.boot.SpringApplication.handleExitCode(	at org.springframework.boot.SpringApplication.handleRunFailure(	at	at	at	at com.example.DemoApplication.main(