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Date: Wed, 16 May 2012 15:05:03 +0000 (UTC)
From: "Gary D. Gregory (JIRA)" <jira@apache.org>
To: issues@commons.apache.org
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Subject: [jira] [Resolved] (VFS-406) RAM FileSystem resize throws ArrayOOBE
 when shrinking in size.
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     [ https://issues.apache.org/jira/browse/VFS-406?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Gary D. Gregory resolved VFS-406.
---------------------------------

    Resolution: Fixed

Committed revision 1339211.
                
> RAM FileSystem resize throws ArrayOOBE when shrinking in size.
> --------------------------------------------------------------
>
>                 Key: VFS-406
>                 URL: https://issues.apache.org/jira/browse/VFS-406
>             Project: Commons VFS
>          Issue Type: Bug
>    Affects Versions: 2.0
>            Reporter: Miroslav Pokorny
>   Original Estimate: 5m
>  Remaining Estimate: 5m
>
> Im targetting 2.0 as it is the official download.
> The fix is quite simple.
> FILE: RamFileObject
> ORIGINAL
>     void resize(int newSize)
>     {
>         int size = this.size();
>         byte[] newBuf = new byte[newSize];
>         System.arraycopy(this.buffer, 0, newBuf, 0, size);
>         this.buffer = newBuf;
>         updateLastModified();
>     }
> // when shrinking size > newSize thus an AOOBE will be thrown.
> FIXED
>     void resize(final int newSize) {
>         final int size = this.size();
>         final byte[] newBuf = new byte[newSize];
>         // HACK fixed error which prevented resizing to a small buffer.
>         System.arraycopy(this.buffer, 0, newBuf, 0, Math.min(newSize, size));
>         this.buffer = newBuf;
>         this.updateLastModified();
>     }

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