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Root Cause Analysis

  1. java.lang.SecurityException

    sealing violation: can't seal package org.lwjgl: already loaded

    at java.net.URLClassLoader.getAndVerifyPackage()
  2. Java RT
    LauncherHelper.checkAndLoadMain
    1. java.net.URLClassLoader.getAndVerifyPackage(Unknown Source)
    2. java.net.URLClassLoader.definePackageInternal(Unknown Source)
    3. java.net.URLClassLoader.defineClass(Unknown Source)
    4. java.net.URLClassLoader.access$100(Unknown Source)
    5. java.net.URLClassLoader$1.run(Unknown Source)
    6. java.net.URLClassLoader$1.run(Unknown Source)
    7. java.security.AccessController.doPrivileged(Native Method)
    8. java.net.URLClassLoader.findClass(Unknown Source)
    9. java.lang.ClassLoader.loadClass(Unknown Source)
    10. sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
    11. java.lang.ClassLoader.loadClass(Unknown Source)
    12. java.lang.Class.getDeclaredMethods0(Native Method)
    13. java.lang.Class.privateGetDeclaredMethods(Unknown Source)
    14. java.lang.Class.privateGetMethodRecursive(Unknown Source)
    15. java.lang.Class.getMethod0(Unknown Source)
    16. java.lang.Class.getMethod(Unknown Source)
    17. sun.launcher.LauncherHelper.validateMainClass(Unknown Source)
    18. sun.launcher.LauncherHelper.checkAndLoadMain(Unknown Source)
    18 frames