Jesse Anderson created HADOOP-12271:
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Summary: Hadoop Jar Error Should Be More Explanatory
Key: HADOOP-12271
URL: https://issues.apache.org/jira/browse/HADOOP-12271
Project: Hadoop Common
Issue Type: Improvement
Reporter: Jesse Anderson
Priority: Minor
When the "hadoop jar" command is used and the JAR does not exist, the error
message says "Not a valid JAR: ...". The message should say that the JAR does
not exist. This error makes it sound like the JAR is corrupt or is not a JAR
format.
https://github.com/apache/hadoop/blob/c1d50a91f7c05e4aaf4655380c8dcd11703ff158/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/util/RunJar.java#L151
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