MapReduce运行时报错:java.lang.InstantiationException

java.lang.InstantiationException

MapReduce运行时报错:java.lang.InstantiationException_第1张图片

原因

MapReduce运行时报错:java.lang.InstantiationException_第2张图片

更改为

MapReduce运行时报错:java.lang.InstantiationException_第3张图片

错误

Exception in thread "main" java.lang.RuntimeException: java.lang.InstantiationException
	at org.apache.hadoop.util.ReflectionUtils.newInstance(ReflectionUtils.java:131)
	at org.apache.hadoop.mapred.JobClient.writeNewSplits(JobClient.java:1104)
	at org.apache.hadoop.mapred.JobClient.writeSplits(JobClient.java:1124)
	at org.apache.hadoop.mapred.JobClient.access$600(JobClient.java:178)
	at org.apache.hadoop.mapred.JobClient$2.run(JobClient.java:1023)
	at org.apache.hadoop.mapred.JobClient$2.run(JobClient.java:976)
	at java.security.AccessController.doPrivileged(Native Method)
	at javax.security.auth.Subject.doAs(Subject.java:422)
	at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1917)
	at org.apache.hadoop.mapred.JobClient.submitJobInternal(JobClient.java:976)
	at org.apache.hadoop.mapreduce.Job.submit(Job.java:582)
	at org.apache.hadoop.mapreduce.Job.waitForCompletion(Job.java:612)
	at com.czxy.demo01.MoreFileDriver.run(MoreFileDriver.java:42)
	at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:70)
	at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:84)
	at com.czxy.demo01.MoreFileDriver.main(MoreFileDriver.java:46)

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