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  1. ,
    Expert tip

    The server rejects all jars that already belong to the server runtime (such as tomcat-**.jar, servlet**.jar). Consider substituting the CORS filter you're using for this one: https://goo.gl/ctQ7Fs

  2. ,

    This is thrown when the Java Virtual Machine (JVM) tries to load a particular class and the specified class cannot be found in the classpath. Make sure poi-ooxml library jar is added to your project's build path and you are using the latest version.

Solutions on the web

via Stack Overflow by eeijlar
, 1 year ago
com/cfg/ObjectRepositoryFactory java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
via Google Groups by Unknown author, 1 year ago
> org/codehaus/groovy/runtime/typehandling/ShortTypeHandling > at > java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
via Google Groups by Stephen S., 1 year ago
com/esotericsoftware/kryo/Serializer at app.AppClass.execute
java.lang.NoClassDefFoundError: com/cfg/ObjectRepositoryFactoryjava.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) at java.util.concurrent.FutureTask.run(FutureTask.java:262) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at java.lang.Thread.run(Thread.java:745)Caused by: java.lang.ClassNotFoundException: com.cfg.ObjectRepositoryFactory at java.net.URLClassLoader$1.run(URLClassLoader.java:366) at java.net.URLClassLoader$1.run(URLClassLoader.java:355) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:354) at java.lang.ClassLoader.loadClass(ClassLoader.java:425) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308) at java.lang.ClassLoader.loadClass(ClassLoader.java:358) ... 4 more