Hi all, First let me say I have detailed the description of the issue I have in an Stack Overflow Ticket here:
http://stackoverflow.com/questions/18455480/kafka-quickstart-java-lang-noclassdeffounderror-scala-scalaobject I am trying to build a small prototype for a project in which I want to use Kafka. I am following this example: https://cwiki.apache.org/confluence/display/KAFKA/Consumer+Group+Example However, when I compile and run the code I get this runtime exception. What should I do to get a working prototype / example??? Exception in thread "main" java.lang.reflect.InvocationTargetException at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at com.simontuffs.onejar.Boot.run(Boot.java:340) at com.simontuffs.onejar.Boot.main(Boot.java:166) Caused by: java.lang.NoClassDefFoundError: scala/ScalaObject at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClass(ClassLoader.java:792) at com.simontuffs.onejar.JarClassLoader.defineClass(JarClassLoader.java:803) at com.simontuffs.onejar.JarClassLoader.findClass(JarClassLoader.java:710) at java.lang.ClassLoader.loadClass(ClassLoader.java:424) at com.simontuffs.onejar.JarClassLoader.loadClass(JarClassLoader.java:630) at java.lang.ClassLoader.loadClass(ClassLoader.java:357) at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClass(ClassLoader.java:792) at com.simontuffs.onejar.JarClassLoader.defineClass(JarClassLoader.java:803) at com.simontuffs.onejar.JarClassLoader.findClass(JarClassLoader.java:710) at java.lang.ClassLoader.loadClass(ClassLoader.java:424) at com.simontuffs.onejar.JarClassLoader.loadClass(JarClassLoader.java:630) at java.lang.ClassLoader.loadClass(ClassLoader.java:357) at java.lang.Class.getDeclaredMethods0(Native Method) at java.lang.Class.privateGetDeclaredMethods(Class.java:2521) at java.lang.Class.getDeclaredMethods(Class.java:1845) at org.springframework.core.type.StandardAnnotationMetadata.getAnnotatedMethods(StandardAnnotationMetadata.java:180) at org.springframework.context.annotation.ConfigurationClassParser.doProcessConfigurationClass(ConfigurationClassParser.java:222) at org.springframework.context.annotation.ConfigurationClassParser.processConfigurationClass(ConfigurationClassParser.java:165) at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:140) at org.springframework.context.annotation.ConfigurationClassPostProcessor.processConfigBeanDefinitions(ConfigurationClassPostProcessor.java:282) at org.springframework.context.annotation.ConfigurationClassPostProcessor.postProcessBeanDefinitionRegistry(ConfigurationClassPostProcessor.java:223) at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:630) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:461) at org.springframework.context.annotation.AnnotationConfigApplicationContext.<init>(AnnotationConfigApplicationContext.java:73) ... 6 more Caused by: java.lang.ClassNotFoundException: scala.ScalaObject at com.simontuffs.onejar.JarClassLoader.findClass(JarClassLoader.java:713) at java.lang.ClassLoader.loadClass(ClassLoader.java:424) at com.simontuffs.onejar.JarClassLoader.loadClass(JarClassLoader.java:630) at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ... 34 more -- [cid:39A19B2D-0CC1-46DA-9E25-02B131438D77]
