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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 GitHub by HosiYuki
, 1 year ago
org/apache/avro/io/DatumReader
via Coderanch by Siegfried Heintze, 1 year ago
via Stack Overflow by Unknown author, 2 years ago
via Google Groups by Rajith Muditha Attapattu, 1 year ago
org/apache/maven/plugin/MojoNotFoundException
via Stack Overflow by MPH
, 2 years ago
org/apache/tools/ant/BuildException
java.lang.NoClassDefFoundError: org/apache/avro/io/DatumReader at java.lang.Class.getDeclaredConstructors0(Native Method) at java.lang.Class.privateGetDeclaredConstructors(Class.java:2658) at java.lang.Class.getDeclaredConstructors(Class.java:2007) at org.apache.reef.tang.util.ReflectionUtilities.getNamedParameterTargetOrNull(ReflectionUtilities.java:311) at org.apache.reef.tang.implementation.java.ClassHierarchyImpl.buildPathToNode(ClassHierarchyImpl.java:207) at org.apache.reef.tang.implementation.java.ClassHierarchyImpl.registerClass(ClassHierarchyImpl.java:387) at org.apache.reef.tang.implementation.java.ClassHierarchyImpl.register(ClassHierarchyImpl.java:331) at org.apache.reef.tang.implementation.java.ClassHierarchyImpl.getNode(ClassHierarchyImpl.java:257) at org.apache.reef.tang.implementation.java.InjectorImpl.parseDefaultImplementation(InjectorImpl.java:375) at org.apache.reef.tang.implementation.java.InjectorImpl.buildInjectionPlan(InjectorImpl.java:449) at org.apache.reef.tang.implementation.java.InjectorImpl.filterCandidateConstructors(InjectorImpl.java:193) at org.apache.reef.tang.implementation.java.InjectorImpl.buildClassNodeInjectionPlan(InjectorImpl.java:277) at org.apache.reef.tang.implementation.java.InjectorImpl.buildInjectionPlan(InjectorImpl.java:452) at org.apache.reef.tang.implementation.java.InjectorImpl.getInjectionPlan(InjectorImpl.java:472) at org.apache.reef.tang.implementation.java.InjectorImpl.getInstance(InjectorImpl.java:514) at org.apache.reef.tang.implementation.java.InjectorImpl.getInstance(InjectorImpl.java:533) at org.apache.reef.runtime.common.REEFLauncher.getREEFLauncher(REEFLauncher.java:106) at org.apache.reef.runtime.common.REEFLauncher.main(REEFLauncher.java:167)Caused by: java.lang.ClassNotFoundException: org.apache.avro.io.DatumReader at java.net.URLClassLoader$1.run(URLClassLoader.java:372) at java.net.URLClassLoader$1.run(URLClassLoader.java:361) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:360) at java.lang.ClassLoader.loadClass(ClassLoader.java:424) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308) at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ... 18 more