Andrew Wang created HADOOP-11107:
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Summary: Improve tests to not rely on JDK random implementation
Key: HADOOP-11107
URL: https://issues.apache.org/jira/browse/HADOOP-11107
Project: Hadoop Common
Issue Type: Improvement
Affects Versions: 2.5.1
Reporter: Andrew Wang
As [~daryn] points out on HDFS-6840, writing unit tests that depend on a
certain random seed always generating the same numbers is somewhat brittle,
since the JDK does not guarantee this as part of compatibility. It'd be good to
improve our unit testing to be agnostic to the JDK random implementation, e.g.
by providing our own mock random implementation, or through other methods of
verification.
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