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https://issues.apache.org/jira/browse/TIKA-853?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13197564#comment-13197564
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John Mastarone commented on TIKA-853:
-------------------------------------

I tried debugging but I couldn't see what was holding it open, unless I'm 
missing something.  There were three items in the TemporaryResources class's 
resources linked-list, and the Closeable representing the temporary file was 
the last of the three in the list to be closed; the other two closed 
successfully.  I also tried looking on stackoverflow for answers, and as a 
result tried calling System.gc() and tried explicitly making sure the file was 
writable, but this didn't help.  Maybe it's just a problem with Windows, or 
maybe if I tried upgrading to JDK 7 the problem would vanish.  I can attempt 
the latter fairly soon and say if that helped.
                
> java.io.IOException with TikaGUI and testMP4.m4a
> ------------------------------------------------
>
>                 Key: TIKA-853
>                 URL: https://issues.apache.org/jira/browse/TIKA-853
>             Project: Tika
>          Issue Type: Bug
>          Components: gui, parser
>    Affects Versions: 1.1
>         Environment: Windows 7
>            Reporter: John Mastarone
>
> Using a latest build: when attempting to drop the new testMP4.m4a file into 
> the Tika GUI, a TikaException / IOException occurs:  
> org.apache.tika.exception.TikaException: Failed to close temporary resources
>       at 
> org.apache.tika.io.TemporaryResources.dispose(TemporaryResources.java:152)
>       at 
> org.apache.tika.parser.AutoDetectParser.parse(AutoDetectParser.java:127)
>       at org.apache.tika.gui.TikaGUI.handleStream(TikaGUI.java:320)
>       at org.apache.tika.gui.TikaGUI.openFile(TikaGUI.java:279)
>       at 
> org.apache.tika.gui.ParsingTransferHandler.importFiles(ParsingTransferHandler.java:94)
>       at 
> org.apache.tika.gui.ParsingTransferHandler.importData(ParsingTransferHandler.java:77)
>       at javax.swing.TransferHandler.importData(Unknown Source)
>       at javax.swing.TransferHandler$DropHandler.drop(Unknown Source)
> ....
> Caused by: java.io.IOException: Could not delete temporary file 
> C:\Users\john\AppData\Local\Temp\apache-tika-693752014807275949.tmp
>       at 
> org.apache.tika.io.TemporaryResources$1.close(TemporaryResources.java:70)
>       at 
> org.apache.tika.io.TemporaryResources.close(TemporaryResources.java:121)
>       at 
> org.apache.tika.io.TemporaryResources.dispose(TemporaryResources.java:150)
>       ... 40 more
> I know that the parser for this file is new and its external source parser 
> has some potential bugs, but this exception does not occur when using Tika 
> CLI to detect / parse the test file.  

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