Examples of java.io.File.deleteOnExit()

java.io.File.deleteOnExit()
When the virtual machine terminates, any abstract files which have been sent deleteOnExit() will be deleted. This will only happen when the virtual machine terminates normally as described by the Java Language Specification section 12.9.

        File file = null;
        if (tmpdir != null)
            file = File.createTempFile("libtiff.jai.", ".dat", new File(tmpdir));
        else
            file = File.createTempFile("libtiff.jai.", ".dat");
        file.deleteOnExit();
        return file;
    }


    private void copyImageData(File tmp, OutputStream out, int total)
            throws IOException {

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  public void testChar255() throws Exception {
    File temp = File.createTempFile(TRECDocumentCollectionTest.class
        .getName(), ".testChar255");


    temp.deleteOnExit();
    OutputStream outputStream = new FileOutputStream(temp);
    IOUtils.copy(this.getClass().getResourceAsStream("testChar255.data"),
        outputStream);
    outputStream.close();

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  public void testContents() throws Exception {
    File temp = File.createTempFile( TRECDocumentCollectionTest.class.getName(), ".testContents" );
    File tempAgain = File.createTempFile( TRECDocumentCollectionTest.class.getName(), ".testContentsAgain" );


    temp.deleteOnExit();
    tempAgain.deleteOnExit();
    OutputStream outputStream = new FileOutputStream( temp );
    OutputStream outputStreamAgain = new FileOutputStream( tempAgain );
    IOUtils.copy( this.getClass().getResourceAsStream( "testContents.data" ), outputStream );
    outputStream.close();
    IOUtils.copy( this.getClass().getResourceAsStream( "testContentsAgain.data" ), outputStreamAgain );

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            File log = new File("derby.log");
            if (log.exists()) {
                if (now) {
                    log.delete();
                } else {
                    log.deleteOnExit();
                }
            }
            root = new File(path);
        } else {
            root = new File(dsh);

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                    final File fileSystemResource = File.createTempFile(resourceFileName, null);
                    if (logger.isDebugEnabled())
                    {
                        logger.debug("Temporary file will be deleted on VM exit: " + fileSystemResource.getAbsolutePath());
                    }
                    fileSystemResource.deleteOnExit();
                    if (logger.isDebugEnabled())
                    {
                        logger.debug("Copying classpath resource contents into temporary file");
                    }
                    writeUrlToFile(urlResource, fileSystemResource.toString(), null);

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        contents.append("hibernate.connection.url=").append(connectionUrl).append("\n");
        contents.append("hibernate.connection.username=").append(username).append("\n");
        contents.append("hibernate.connection.password=").append(password).append("\n");
        final File temporaryProperitesFile =
            new File(HIBERNATE_PROPERTIES_TEMP_DIRECTORY, new Random().nextDouble() + "");
        temporaryProperitesFile.deleteOnExit();
        ResourceWriter.instance().writeStringToFile(
            contents.toString(),
            temporaryProperitesFile.toString());
        arguments.add("--properties=" + temporaryProperitesFile);
    }

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    private String resourceName;
    private ClassLoaderResolver clr; 
    
    public void setUp() throws IOException { 
        File resource = File.createTempFile("test", "resource");
        resource.deleteOnExit(); 
        resourceName = resource.getName();


        FileWriter writer = new FileWriter(resource);
        writer.write(RESOURCE_DATA);
        writer.write("\n");

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        contents.append("hibernate.connection.url=" + connectionUrl + "\n");
        contents.append("hibernate.connection.username=" + username + "\n");
        contents.append("hibernate.connection.password=" + password + "\n");
        final File temporaryProperitesFile =
            new File(HIBERNATE_PROPERTIES_TEMP_DIRECTORY, new Random().nextDouble() + "");
        temporaryProperitesFile.deleteOnExit();
        ResourceWriter.instance().writeStringToFile(
            contents.toString(),
            temporaryProperitesFile.toString());
        arguments.add("--properties=" + temporaryProperitesFile);
    }

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            } catch (final RuntimeException e) {
                // not a valid release
              // can be also a restart- or deploy-file
                final File invalid = downloaded;
                if (!(invalid.getName().endsWith(".bat") || invalid.getName().endsWith(".sh") || invalid.getName().endsWith(".sig"))) { // Windows & Linux don't like deleted scripts while execution!
                    invalid.deleteOnExit();
                }
            }
        }
        // latest downloaded release
        yacyVersion dflt = (downloadedReleases.isEmpty()) ? null : downloadedReleases.last();

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      numTries++;
    }
    if ( ! success )
      return null;


    newDir.deleteOnExit();
    return newDir;
  }


  /**
   * Create a new directory for the given path. Fails if the directory already

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