public void close() throws IOException {
        super.close();
        cache.close();
        cacheFile.delete();
    }
Closes this stream and releases any system resources
associated with the stream.

@throws IOException if an I/O error occurs.
plugins/svg-plugin/batik-codec-fix/src/main/java/org/apache/batik/ext/awt/image/codec/util/FileCacheSeekableStream.java