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Posted to dev@hc.apache.org by "Oleg Kalnichevski (JIRA)" <ji...@apache.org> on 2015/01/25 17:28:34 UTC
[jira] [Resolved] (HTTPCLIENT-1602) Tutorial claims that
HttpException is unrecoverable but the implementation is recoverable
[ https://issues.apache.org/jira/browse/HTTPCLIENT-1602?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Oleg Kalnichevski resolved HTTPCLIENT-1602.
-------------------------------------------
Resolution: Invalid
Fix Version/s: (was: 5.0)
This has nothing to do with exception being checked or unchecked, but whether or not an exception can be _automatically_ recovered from by retrying the failed request.
Oleg
> Tutorial claims that HttpException is unrecoverable but the implementation is recoverable
> -----------------------------------------------------------------------------------------
>
> Key: HTTPCLIENT-1602
> URL: https://issues.apache.org/jira/browse/HTTPCLIENT-1602
> Project: HttpComponents HttpClient
> Issue Type: Bug
> Components: Documentation, HttpClient
> Affects Versions: 4.3.6, 4.4 Beta1
> Reporter: Michael Osipov
>
> According to the [chapter 1.4|http://hc.apache.org/httpcomponents-client-ga/tutorial/html/fundamentals.html#d5e271] of the tutorial the {{HttpException}} and every derived one is unrecoverable. If you open up the [Javadoc|http://hc.apache.org/httpcomponents-core-ga/httpcore/apidocs/org/apache/http/HttpException.html?is-external=true] for, you'll see that is extends {{java.lang.Exception}}. This is wrong, unrecoverable exceptions always extend from {{java.lang.RuntimeException}} to indicate its nature which is an unchecked exception.
> See [this|http://ted-gao.blogspot.de/2013/03/best-practices-in-java-exception.html], paragraph *Checked or Unckecked Exception*. It ultimately refers to Effective Java, Item 58: Use checked exceptions for recoverable conditions and runtime exceptions for programming errors and Item 59: Avoid unnecessary use of checked exceptions.
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