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Posted to dev@tika.apache.org by "Marichi Gupta (JIRA)" <ji...@apache.org> on 2019/07/17 20:35:00 UTC
[jira] [Created] (TIKA-2908) TikaException: Failed to close
temporary resource - how to fix?
Marichi Gupta created TIKA-2908:
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Summary: TikaException: Failed to close temporary resource - how to fix?
Key: TIKA-2908
URL: https://issues.apache.org/jira/browse/TIKA-2908
Project: Tika
Issue Type: Bug
Components: ocr, parser
Affects Versions: 1.21
Reporter: Marichi Gupta
I am using Apache Tika on Windows 10, jre 1.8.0_181, and I've imported Tika using Maven with the following dependencies:
{{<dependencies> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>3.8.1</version> <scope>test</scope> </dependency> <dependency> <groupId>org.apache.tika</groupId> <artifactId>tika-parsers</artifactId> <version>1.21</version> </dependency> </dependencies>}}
I have the code below for performing OCR using Tesseract (which I have independently tested and know to be working):
{{public static void OCRTest() { }}
{{try { }}
{{BufferedImage im = ImageIO.read(new File(OCR_IMAGE)); }}
{{TesseractOCRConfig config = new TesseractOCRConfig();}}
{{ config.setTessdataPath("C:\\Program Files\\Tesseract-OCR\\tessdata");}}
{{ config.setTesseractPath("C:\\Program Files\\Tesseract-OCR"); }}
{{ParseContext parseContext = new ParseContext();}}
{{ parseContext.set(TesseractOCRConfig.class, config); }}
{{TesseractOCRParser parser = new TesseractOCRParser(); }}
{{BodyContentHandler handler = new BodyContentHandler(); }}
{{Metadata metadata = new Metadata(); }}
{{try { }}
{{parser.parse(im, handler, metadata, parseContext);}}
{{ System.out.println(handler.toString()); }}
{{} catch (SAXException e) { e.printStackTrace(); } }}
{{catch (TikaException e) { e.printStackTrace(); } }}
{{} }}{{catch (IOException e) { e.printStackTrace(); } }}}
I run into the following exception:
{{org.apache.tika.exception.TikaException: Failed to close temporary resources at org.apache.tika.io.TemporaryResources.dispose(TemporaryResources.java:174) at org.apache.tika.parser.ocr.TesseractOCRParser.parse(TesseractOCRParser.java:251) at test.test.App.OCRTest(App.java:46) at test.test.App.main(App.java:30) Caused by: java.nio.file.FileSystemException: C:\Users\m\AppData\Local\Temp\apache-tika-2643805894084124300.tmp: The process cannot access the file because it is being used by another process. }}
The tmp file is present in the Temp folder. I have the source code downloaded and have stepped through it with the debugger - the error comes from attempting to close the tmp file. On the Apache Tika forums, there is another post here (https://issues.apache.org/jira/browse/TIKA-1732) where someone else has run into the same exception, although with the AutoDetectParser and not Tesseract. Their issue seemed to be a conflict in their imported jars, but I run into this issue even with only the Apache Tika libraries installed. I have a feeling this is a concurrency issue, but I can't pinpoint the conflict.
I don't run into this issue when using the Tika's AutoDetectParser, only with the TesseractOCRParser. This is an important part of an application I'm working on, so I would really appreciate any insights on how to proceed.
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