java.lang.NoClassDefFoundError: com/puppycrawl/tools/checkstyle/api/CheckstyleException

Stack Overflow | SirArt | 2 months ago
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Root Cause Analysis

  1. java.lang.ClassNotFoundException

    com.puppycrawl.tools.checkstyle.api.CheckstyleException

    at java.net.URLClassLoader.findClass()
  2. Java RT
    ClassLoader.loadClass
    1. java.net.URLClassLoader.findClass(URLClassLoader.java:381)
    2. java.lang.ClassLoader.loadClass(ClassLoader.java:424)
    3. java.lang.ClassLoader.loadClass(ClassLoader.java:357)
    3 frames
  3. ch.ntb.sir
    NtbBlueJExtension.startup
    1. ch.ntb.sir.ntbbluejextension.NtbBlueJExtension.startup(NtbBlueJExtension.java:79)
    1 frame
  4. bluej.extmgr
    ExtensionsManager.getInstance
    1. bluej.extmgr.ExtensionWrapper.safeStartup(ExtensionWrapper.java:533)
    2. bluej.extmgr.ExtensionWrapper.newExtension(ExtensionWrapper.java:209)
    3. bluej.extmgr.ExtensionsManager.loadDirectoryExtensions(ExtensionsManager.java:164)
    4. bluej.extmgr.ExtensionsManager.loadExtensions(ExtensionsManager.java:100)
    5. bluej.extmgr.ExtensionsManager.getInstance(ExtensionsManager.java:61)
    5 frames
  5. bluej
    Main.<init>
    1. bluej.Main.<init>(Main.java:101)
    1 frame
  6. Java RT
    Class.newInstance
    1. sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    2. sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
    3. sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
    4. java.lang.reflect.Constructor.newInstance(Constructor.java:422)
    5. java.lang.Class.newInstance(Class.java:442)
    5 frames
  7. bluej
    Boot.main
    1. bluej.Boot.bootBluej(Boot.java:348)
    2. bluej.Boot.main(Boot.java:175)
    2 frames