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https://issues.apache.org/jira/browse/HTTPCLIENT-1602?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14291255#comment-14291255
 ] 

Oleg Kalnichevski edited comment on HTTPCLIENT-1602 at 1/25/15 8:26 PM:
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Because there is _nothing_ that mandates that it has to be unchecked. Certain 
HttpException instances can well be recoverable. They however cannot be 
recovered from _automatically_ simply by retrying the request with some 
exception handling logic.

Oleg


was (Author: olegk):
Because there is _nothing_ that mandates that it has to be. Certain 
HttpException instances can well be recoverable. They however cannot be 
recovered from _automatically_ simply by retrying the request with some 
exception handling logic.

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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