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https://issues.apache.org/jira/browse/CASSANDRA-15115?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jon Meredith updated CASSANDRA-15115:
-------------------------------------
Resolution: Not A Bug
Status: Resolved (was: Triage Needed)
Although the exception generation/handling code could be improved, it is
functionally correct.
> WindowsFailedSnapshotTracker.deleteOldSnapshots() throws RuntimeException
> when it failed to create a file
> ---------------------------------------------------------------------------------------------------------
>
> Key: CASSANDRA-15115
> URL: https://issues.apache.org/jira/browse/CASSANDRA-15115
> Project: Cassandra
> Issue Type: Bug
> Reporter: eBugs
> Assignee: Jon Meredith
> Priority: Normal
>
> Dear Cassandra developers, we are developing a tool to detect
> exception-related bugs in Java. Our prototype has spotted the following
> {{throw}} statement whose exception class and error message indicate
> different error conditions.
>
> Version: Cassandra-3.11 (commit: 123113f7b887370a248669ee0db6fdf13df0146e)
> File:
> CASSANDRA-ROOT/src/java/org/apache/cassandra/db/WindowsFailedSnapshotTracker.java
> Line: 98
> {code:java}
> throw new RuntimeException(String.format("Failed to create failed snapshot
> tracking file [%s]. Aborting", TODELETEFILE));{code}
>
> {{RuntimeException}} is usually used to represent errors in the program logic
> (think of one of its subclasses, {{NullPointerException}}), while the error
> message indicates that {{deleteOldSnapshots()}} failed to create a file. This
> mismatch could be a problem. For example, the callers may miss the
> possibility that {{deleteOldSnapshots()}} can fail to create a file because
> it does not throw any {{IOException}}. Or, the callers trying to handle other
> {{RuntimeException}} may accidentally (and incorrectly) handle the file
> creation failure.
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