Lesen eines GZipInputStreams

1public static InputStream getJsonStream(String url, boolean gzip)
2 {
3 try
4 {
5 HttpGet httpGet = new HttpGet(url);
6 HttpClient httpclient = new DefaultHttpClient();
7 HttpResponse response = httpclient.execute(httpGet);
8
9 if (gzip)
10 {
11 response.addHeader("Accept-Encoding", "gzip");
12 content = new GZIPInputStream(response.getEntity().getContent());
13 Log.v("### GZIP-Stream ###", url);
14 }
15 else
16 {
17 content = response.getEntity().getContent();
18 }
19 }
20 catch (Exception exc)
21 {
22 Log.v("### Exception ###", "Fehler beim Lesen der List JSON", exc);
23 }
24 return content;
25 }

1### Exception ###(13186): Fehler beim Lesen der List JSON
2### Exception ###(13186): java.io.IOException: unknown format (magic number a5b)
3### Exception ###(13186): at java.util.zip.GZIPInputStream.<init>(GZIPInputStream.java:84)
4### Exception ###(13186): at java.util.zip.GZIPInputStream.<init>(GZIPInputStream.java:64)
5### Exception ###(13186): at kommunikation.Server.getJsonStream(Server.java:66)
6### Exception ###(13186): at kommunikation.Json.jsonLaden(Json.java:289)
7### Exception ###(13186): at kommunikation.Json.access$1(Json.java:265)
8### Exception ###(13186): at kommunikation.Json$AvailabilityTask.doInBackground(Json.java:208)
9### Exception ###(13186): at kommunikation.Json$AvailabilityTask.doInBackground(Json.java:1)
10### Exception ###(13186): at android.os.AsyncTask$2.call(AsyncTask.java:185)
11### Exception ###(13186): at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:306)
12### Exception ###(13186): at java.util.concurrent.FutureTask.run(FutureTask.java:138)
13### Exception ###(13186): at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1088)
14### Exception ###(13186): at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:581)
15### Exception ###(13186): at java.lang.Thread.run(Thread.java:1019)