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 hadoop-user by Mahesh Balija, 1 year ago
java.lang.ClassNotFoundException: Class >> >> WordCount2$Map not found at >> org.apache.hadoop.conf.Configuration.getClass(Configuration.java:1439) at >> >> >> org.apache.hadoop.mapreduce.task.JobContextImpl.getMapperClass(JobContextImpl.java:191)
via grokbase.com by Unknown author, 2 years ago
java.lang.ClassNotFoundException: Class com.smartek.test.WordCount$Map not found at org.apache.hadoop.conf.Configuration.getClass(Configuration.java:1895) at org.apache.hadoop.mapreduce.task.JobContextImpl.getMapperClass(JobContextImpl.java:191)
via giraph-user by Eli Reisman, 1 year ago
org.apache.hadoop.ipc.RemoteException: IPC server unable to read call parameters: null at > org.apache.giraph.comm.BasicRPCCommunications.sendPartitionRequest(BasicRPCCommunications.java:923) at
via giraph-user by Eli Reisman, 1 year ago
org.apache.hadoop.ipc.RemoteException: IPC server unable to read call parameters: null at >> org.apache.giraph.comm.BasicRPCCommunications.sendPartitionRequest(BasicRPCCommunications.java:923) at
via apache.org by Unknown author, 2 years ago
readObject can't find class at >> org.apache.hadoop.mapreduce.lib.input.TaggedInputSplit.readClass(TaggedInputSplit.java:136) at >> org.apache.hadoop.mapreduce.lib.input.TaggedInputSplit.readFields(TaggedInputSplit.java:121) at
via apache.org by Unknown author, 2 years ago
other edition of DB2 Connect, obtain the license >> file, db2jcc_license_cisuz.jar, from the license activation kit, and follow the >> installation directions to include the license file in the class path. >> ERRORCODE=-4230, SQLSTATE=42968 at
java.lang.RuntimeException: java.lang.ClassNotFoundException: Class
>> >> WordCount2$Map not found
 at
>> org.apache.hadoop.conf.Configuration.getClass(Configuration.java:1439)
 at
>> >>
>> org.apache.hadoop.mapreduce.task.JobContextImpl.getMapperClass(JobContextImpl.java:191)	at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:605)	at org.apache.hadoop.mapred.MapTask.run(MapTask.java:325)	at org.apache.hadoop.mapred.Child$4.run(Child.java:270)	at java.security.AccessController.doPrivileged(Native Method)	at javax.security.auth.Subject.doAs(Subject.java:416)