No. Please use Java 8. Nutch requires Java 8, see default.properties.
The Dockerfile is outdated. If possible please open a Jira issue to update it.
The error is really weired:
NutchJob extends org.apache.hadoop.mapreduce.Job, so there should be no
verification  error. I'm not able to reproduce it.
Could you explain more in which environment Nutch is executed and how
you launch it? Ev. try with "java -Xverify:none" (for bin/nutch set
the environment variable NUTCH_OPTS=-Xverify:none) to see what happens.
On 01/12/2018 09:09 AM, govind nitk wrote: