Hi, I am using the following code base: https://github.com/larsgeorge/hbase-book/tree/master/ch07
The thing is .. I do the mvn clean package And it compiles fine. But when I run one of the code.. it throws an error: java.lang.RuntimeException: java.lang.reflect.InvocationTargetException at org.apache.hadoop.util.ReflectionUtils.newInstance(ReflectionUtils.java:115) at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:719) at org.apache.hadoop.mapred.MapTask.run(MapTask.java:370) at org.apache.hadoop.mapred.Child$4.run(Child.java:255) at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.Subject.doAs(Subject.java:416) at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1093) at org.apache.hadoop.mapred.Child.main(Child.java:249) Caused by: java.lang.reflect.InvocationTargetException at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) at java.lang.reflect.Constructor.newInstance(Constructor.java:532) at org.apache.hadoop.util.ReflectionUtils.newInstance(ReflectionUtils.java:113) ... 7 more Caused by: java.lang.NoClassDefFoundError: org/json/simple/parser/JSONParser at mapreduce.ParseJson$ParseMapper.<init>(ParseJson.java:49) ... 12 more Caused by: java.lang.ClassNotFoundException: org.json.simple.parser.JSONParser at java.net.URLClassLoader$1.run(URLClassLoader.java:217) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:205) at java.lang.ClassLoader.loadClass(ClassLoader.java:321) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:294) at java.lang.ClassLoader.loadClass(ClassLoader.java:266) ... 13 more Now I am guessing it is not able to find simple-json library.. but I think they have added it into pom here: https://github.com/larsgeorge/hbase-book/blob/master/ch07/pom.xml <dependency> <groupId>com.googlecode.json-simple</groupId> <artifactId>json-simple</artifactId> <version>1.1</version> </dependency> Also, if I export a jar from eclipse and explicitly ask to include this jar, the code works just fine? What am i missing?
