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https://issues.apache.org/jira/browse/HADOOP-12604?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15044801#comment-15044801
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Steve Loughran commented on HADOOP-12604:
-----------------------------------------
* license failure is unrelated
* the javac warning is in KMSClientProvider, but its some existing code
elsewhere
* can you cut out the {{catch (IOException ex)}} clause entirely, now that all
it does is rethrow ex?
> Exception may be swallowed in KMSClientProvider
> -----------------------------------------------
>
> Key: HADOOP-12604
> URL: https://issues.apache.org/jira/browse/HADOOP-12604
> Project: Hadoop Common
> Issue Type: Bug
> Components: kms
> Reporter: Yongjun Zhang
> Assignee: Yongjun Zhang
> Labels: supportability
> Attachments: HADOOP-12604.001.patch
>
>
> In KMSClientProvider# createConnection
> {code}
> try {
> is = conn.getInputStream();
> ret = mapper.readValue(is, klass);
> } catch (IOException ex) {
> if (is != null) {
> is.close(); <== close may throw exception
> }
> throw ex;
> } finally {
> if (is != null) {
> is.close();
> }
> }
> }
> {code}
> {{ex}} may be swallowed when {{close}} highlighted in the code throws
> exception. Thanks [~qwertymaniac] for pointing this out.
> BTW, I think we should be able to consolidate the two {{is.close()}} in the
> above code, so we don't close the same stream twice. The one in the {{finally
> block}} may be called after an exception is thrown or not, and it may throw
> exception too, we need to be careful not to swallow exception here too.
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