cgl.imr.base.TwisterException: Could not instantiate the Mapper. at cgl.imr.worker.Mapper.<init (Mapper.java:120) at cgl.imr.worker.DaemonWorker.handleMapperRequest(DaemonWorker.java:228)

Searched on Google with the first line of a JAVA stack trace?

We can recommend more relevant solutions and speed up debugging when you paste your entire stack trace with the exception message. Try a sample exception.

Recommended solutions based on your search

Solutions on the web

via Stack Overflow by Askerly
, 1 year ago
Could not instantiate the Mapper. at cgl.imr.worker.Mapper.<init (Mapper.java:120) at cgl.imr.worker.DaemonWorker.handleMapperRequest(DaemonWorker.java:228)
java.lang.ClassNotFoundException: map_reduce.GPMapTask   	at java.net.URLClassLoader.findClass(URLClassLoader.java:381)	at java.lang.ClassLoader.loadClass(ClassLoader.java:424)	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)	at java.lang.ClassLoader.loadClass(ClassLoader.java:357)	at java.lang.ClassLoader.findSystemClass(ClassLoader.java:1004)	at cgl.imr.util.CustomClassLoader.findClass(CustomClassLoader.java:102)	at cgl.imr.util.CustomClassLoader.loadClass(CustomClassLoader.java:129)	at java.lang.Class.forName0(Native Method)	at java.lang.Class.forName(Class.java:348)