public File createTemporaryFile() throws IOException {
        return createTempFile(StringUtils.EMPTY).toFile();
    }
Creates and returns a temporary file that will automatically be
deleted when the {@link #close()} method is called.

@return Created temporary file that'll be deleted after closing
@throws IOException
@see #createTempFile(String)
tika-core/src/main/java/org/apache/tika/io/TemporaryResources.java