* fix bug when browsing local filesystem (e. g. repository) with yacy

git-svn-id: https://svn.berlios.de/svnroot/repos/yacy/trunk@7323 6c8d7289-2bf4-0310-a012-ef5d649a1542

source/net/yacy/document/parser/html/ContentScraper.java

@@ -547,7 +547,9 @@ public class ContentScraper extends AbstractScraper implements Scraper {
         
         // scrape document to look up charset
         final ScraperInputStream htmlFilter = new ScraperInputStream(new ByteArrayInputStream(page),"UTF-8", new MultiProtocolURI("http://localhost"),null,false);
-        final String charset = htmlParser.patchCharsetEncoding(htmlFilter.detectCharset());
+        String charset = htmlParser.patchCharsetEncoding(htmlFilter.detectCharset());
+        if(charset == null)
+               charset = Charset.defaultCharset().toString();
         
         // scrape content
         final ContentScraper scraper = new ContentScraper(new MultiProtocolURI("http://localhost"));