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Posted to dev@hc.apache.org by "Oleg Kalnichevski (Jira)" <ji...@apache.org> on 2022/02/26 14:03:00 UTC

[jira] [Resolved] (HTTPCLIENT-2206) fluent: Response#saveContent(File) does not dispose response upon throwing

     [ https://issues.apache.org/jira/browse/HTTPCLIENT-2206?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Oleg Kalnichevski resolved HTTPCLIENT-2206.
-------------------------------------------
    Fix Version/s: 4.5.14
                   5.1.4
                   5.2-alpha2
       Resolution: Fixed

> fluent: Response#saveContent(File) does not dispose response upon throwing
> --------------------------------------------------------------------------
>
>                 Key: HTTPCLIENT-2206
>                 URL: https://issues.apache.org/jira/browse/HTTPCLIENT-2206
>             Project: HttpComponents HttpClient
>          Issue Type: Bug
>          Components: Fluent HC
>            Reporter: Robert Wang
>            Priority: Minor
>             Fix For: 4.5.14, 5.1.4, 5.2-alpha2
>
>
>  
> When throwing HttpResponseException, it does not dispose the underlying entity. This can cause conn pool to be stuck, imagine a normal retry loop using the same HttpClient. Perhaps it should be wrapped inside #handleResponse.
> {code:java}
>     public void saveContent(final File file) throws IOException {
>         assertNotConsumed();
>         final int status = response.getCode();
>         if (status >= HttpStatus.SC_REDIRECTION) {
>             throw new HttpResponseException(status, response.getReasonPhrase());
>         }
>         try (FileOutputStream out = new FileOutputStream(file)) {
>             final HttpEntity entity = this.response.getEntity();
>             if (entity != null) {
>                 entity.writeTo(out);
>             }
>         } finally {
>             this.consumed = true;
>         }
>     }
> {code}
> An alternative may be calling response.close(), which its behavior is documented here. I'm not sure how to check the "if supported" part though.
>  
> {code:java}
>     /**
>      * Returns a content stream of the entity.
> ...omitted...
>      * <p>
>      * If this entity belongs to an incoming HTTP message, calling
>      * {@link InputStream#close()} on the returned {@code InputStream} will
>      * try to consume the complete entity content to keep the connection
>      * alive. In cases where this is undesired, e.g. when only a small part
>      * of the content is relevant and consuming the complete entity content
>      * would be too inefficient, <i>only</i> the HTTP message from which
>      * this entity was obtained should be closed (if supported).
>      * </p>
> ...omitted...
>      */
>     InputStream getContent() throws IOException, UnsupportedOperationException; {code}
>  
>  
>  



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