MahoutDriver throws NPE if driver.classes.props is not on the classpath
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Key: MAHOUT-584
URL: https://issues.apache.org/jira/browse/MAHOUT-584
Project: Mahout
Issue Type: Bug
Affects Versions: 0.4
Reporter: Frank Scholten
Priority: Minor
Fix For: 0.5
Running MahoutDriver from an IDE run configuration with a program name such as
kmeans and help as arguments, will result in an NPE because it won't be able to
find the driver.classes.props file.
By changing the catch block so it catches Exception instead of IOException,
MahoutDriver will use the driver.classes.default.props file so it can still be
run with or without the driver.classes.props. This is useful if one wants to
call the MahoutDriver from custom code outside mahout instead of using the
mahout script. However, if one wishes to run MahoutDriver from outside mahout,
the mahout-core, -math, -utils and example jars still need to be on the
classpath or else ClassNotFoundExceptions will be thrown when it tries to add
the classes for all the programs.
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