When I develop my program with  coprocessor. I upload and dynamic install
my coprocessor.
But when I want to do update my coprocessor, I do these thing below:

> disable 'mytable'
> METHOD => 'table_att_unset',NAME => 'coprocessor$1'
> alter 'mytable',METHOD=>'table_att','coprocessor'=>'hdfs:///
GISdoop.jar|site.luoyu.MyFirstCop|1001'
> enable 'Coprocessor'

Will this unload The class from Classloader and load my new class right way?

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