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From "Michael Osipov (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HTTPCLIENT-1602) Tutorial claims that HttpException is unrecoverable but the implementation is recoverable
Date Sat, 24 Jan 2015 16:20:34 GMT
Michael Osipov created HTTPCLIENT-1602:
------------------------------------------

             Summary: 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: 4.4 Beta1, 4.3.6
            Reporter: Michael Osipov
             Fix For: 5.0


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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