Fix null value handling in StringUtils#arrayToString() and #getStrings()
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Key: HADOOP-5307
URL: https://issues.apache.org/jira/browse/HADOOP-5307
Project: Hadoop Core
Issue Type: Bug
Components: util
Affects Versions: 0.21.0
Reporter: Enis Soztutar
Assignee: Enis Soztutar
StringUtils#arrayToString() converts String array to a String of comma
separated elements. If the String array includes null values, these are
recovered as "null" (literal) from getStrings() method, which eventually causes
configuration issues.
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