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via Coderanch by albert kao, 1 year ago
java.lang.NoClassDefFoundError: Copy.java at sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:198)Caused by: java.lang.ClassNotFoundException: Copy.java at java.net.URLClassLoader$1.run(URLClassLoader.java:299) at java.net.URLClassLoader$1.run(URLClassLoader.java:288) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:287) at java.lang.ClassLoader.loadClass(ClassLoader.java:422) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:325) at java.lang.ClassLoader.loadClass(ClassLoader.java:355) at sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:195)