To add to the body of information, this is a stack trace when using HttpURLConnection
01-13 12:27:22.251: WARN/System.err(601): at java.net.Socket.connect(Socket.java:1038) 01-13 12:27:22.260: WARN/System.err(601): at org.apache.harmony.luni.internal.net.www.protocol.http.HttpConnection.<init>(HttpConnection.java: 62) 01-13 12:27:22.260: WARN/System.err(601): at org.apache.harmony.luni.internal.net.www.protocol.http.HttpConnectionPool.get(HttpConnectionPool.java: 88) 01-13 12:27:22.280: WARN/System.err(601): at org.apache.harmony.luni.internal.net.www.protocol.http.HttpURLConnectionImpl.getHTTPConnection(HttpURLConnectionImpl.java: 927) 01-13 12:27:22.280: WARN/System.err(601): at org.apache.harmony.luni.internal.net.www.protocol.http.HttpURLConnectionImpl.connect(HttpURLConnectionImpl.java: 909) <proprietary portion snipped> 01-13 12:27:22.340: WARN/System.err(601): at android.os.AsyncTask $2.call(AsyncTask.java:185) 01-13 12:27:22.350: WARN/System.err(601): at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:305) 01-13 12:27:22.362: WARN/System.err(601): at java.util.concurrent.FutureTask.run(FutureTask.java:137) 01-13 12:27:22.362: WARN/System.err(601): at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java: 1068) 01-13 12:27:22.372: WARN/System.err(601): at java.util.concurrent.ThreadPoolExecutor $Worker.run(ThreadPoolExecutor.java:561) 01-13 12:27:22.381: WARN/System.err(601): at java.lang.Thread.run(Thread.java:1096) On Jan 12, 5:02 pm, Dan <king...@gmail.com> wrote: > I have tried a more extensive test with AndroidHttpClient and received > an error: > > 01-12 16:58:31.614: WARN/System.err(1953): > java.net.UnknownHostException: cs.wirelsswerx-test.com > 01-12 16:58:31.614: WARN/System.err(1953): at > java.net.InetAddress.lookupHostByName(InetAddress.java:504) > 01-12 16:58:31.622: WARN/System.err(1953): at > java.net.InetAddress.getAllByNameImpl(InetAddress.java:278) > 01-12 16:58:31.630: WARN/System.err(1953): at > java.net.InetAddress.getAllByName(InetAddress.java:242) > 01-12 16:58:31.630: WARN/System.err(1953): at > org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(De > faultClientConnectionOperator.java: > 136) > 01-12 16:58:31.630: WARN/System.err(1953): at > org.apache.http.impl.conn.AbstractPoolEntry.open(AbstractPoolEntry.java: > 164) > 01-12 16:58:31.630: WARN/System.err(1953): at > org.apache.http.impl.conn.AbstractPooledConnAdapter.open(AbstractPooledConn > Adapter.java: > 119) > 01-12 16:58:31.638: WARN/System.err(1953): at > org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDi > rector.java: > 348) > 01-12 16:58:31.638: WARN/System.err(1953): at > org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.j > ava: > 555) > 01-12 16:58:31.638: WARN/System.err(1953): at > org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.j > ava: > 487) > 01-12 16:58:31.638: WARN/System.err(1953): at > org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.j > ava: > 465) > 01-12 16:58:31.646: WARN/System.err(1953): at > android.net.http.AndroidHttpClient.execute(AndroidHttpClient.java:243) > > Proprietary portion of stack trace snipped. > > On Jan 12, 4:15 pm, Dan <king...@gmail.com> wrote: > > > > > > > > > Hello All, > > > I have had this error both on emulator and a Motorola Droid while > > using a WIFI connection. I have surrounded the http request with WIFI > > state checks and before and after WIFI is reported state 3 > > (WIFI_STATE_ENABLED) and a connection speed of 54 . I have also > > confirmed, using an adb shell with the emulator, that the emulator > > cannot ping the website in question giving a domain resolution error. > > To compare notes with Ankur, is the server on your LAN and the IP used > > internal? mine is. > > > I have also tried AndroidHttpClient which does work on the same url. > > > -Dan > > > On Jan 12, 12:23 pm, Ankur Avlani <ankuravl...@gmail.com> wrote: > > > > True, I agree with what you say. Its just that I feel, other apps should > > > also break or give error. > > > > Anywayz, Thanks a lot for your inputs. > > > > regards, > > > Ankur. > > > > On Wed, Jan 12, 2011 at 12:17 PM, Brill Pappin <br...@pappin.ca> wrote: > > > > Well i suppose thats possible if your messing with the network stack, > > > > but it's pretty low level for Java/Android. > > > > I guess its also possible that the Android version you have has a > > > > crappy stack or driver... or you have rooted it and have been messing > > > > around under the covers so to speak. > > > > > There is nothing in Android really that would allow you to mess it up > > > > that badly AFAIK, so I doubt it's your application causing the problem > > > > if your not specifically getting under the covers. > > > > > However, the meaning of the exception is clear: > > > > >http://download.oracle.com/javase/1.4.2/docs/api/java/net/UnknownHost... > > > > and your app doesn't really control the process of translating a > > > > domain to an ip. > > > > > - Brill Pappin > > > > > On Jan 12, 2:54 pm, Ankur Avlani <ankuravl...@gmail.com> wrote: > > > > > Somehow I have this feeling it is related to my app only. Other apps > > > > > on > > > > the > > > > > phone, I don't see any such issue. Even when browsing on my phone, I > > > > don't > > > > > see any error. > > > > > > On Wed, Jan 12, 2011 at 11:41 AM, Kumar Bibek <coomar....@gmail.com> > > > > wrote: > > > > > > By Wi-Fi, I meant, you phone's Wi-Fi could be turning on and off. > > > > > > There > > > > is > > > > > > no other reason I can think of. It happens for me as well, > > > > > > sometimes. > > > > > > > Kumar Bibek > > > > > >http://techdroid.kbeanie.com > > > > > >http://www.kbeanie.com > > > > > > > On Thu, Jan 13, 2011 at 1:10 AM, Ankur Avlani <ankuravl...@gmail.com > > > > >wrote: > > > > > > >> I am sorry, that somehow doesn't convince me. I am connected to > > > > > >> the > > > > same > > > > > >> wifi on my laptop and i never see any web page load error on my > > > > laptop. > > > > > > >> On Wed, Jan 12, 2011 at 11:38 AM, Kumar Bibek <coomar....@gmail.com > > > > >wrote: > > > > > > >>> Yup, then it's a problem with your Wi-Fi. > > > > > > >>> Kumar Bibek > > > > > >>>http://techdroid.kbeanie.com > > > > > >>>http://www.kbeanie.com > > > > > > >>> On Thu, Jan 13, 2011 at 1:07 AM, Ankur Avlani > > > > > >>> <ankuravl...@gmail.com > > > > >wrote: > > > > > > >>>> I am connected to network, I am on Wifi. If i try again it > > > > > >>>> works. > > > > Its > > > > > >>>> just random. > > > > > > >>>> On Wed, Jan 12, 2011 at 11:34 AM, Kumar Bibek > > > > > >>>> <coomar....@gmail.com > > > > >wrote: > > > > > > >>>>> This error/exception comes because of no network connectivity. > > > > > > >>>>> Kumar Bibek > > > > > >>>>>http://techdroid.kbeanie.com > > > > > >>>>>http://www.kbeanie.com > > > > > > >>>>> On Thu, Jan 13, 2011 at 1:02 AM, Ankur Avlani < > > > > ankuravl...@gmail.com>wrote: > > > > > > >>>>>> Hi All, > > > > > > >>>>>> I am developing an application on Android. I have seen that at > > > > times > > > > > >>>>>> when I try to connect using HttpURLConnection, for getting an > > > > Image or > > > > > >>>>>> anydata, I get the following error: > > > > > > >>>>>> 01-12 11:24:05.073: WARN/System.err(16780): > > > > > >>>>>> java.net.UnknownHostException: Host is > > > > > >>>>>> unresolved:www.XXX.com:80. > > > > > > >>>>>> Note: I get this error on my Motorolla Droid and not in > > > > > >>>>>> emulator. > > > > > > >>>>>> Any ideas? > > > > > > >>>>>> Thanks, > > > > > >>>>>> Ankur > > > > > > >>>>>> -- > > > > > >>>>>> You received this message because you are subscribed to the > > > > > >>>>>> Google > > > > > >>>>>> Groups "Android Developers" group. > > > > > >>>>>> To post to this group, send email to > > > > > >>>>>> android-developers@googlegroups.com > > > > > >>>>>> To unsubscribe from this group, send email to > > > > > >>>>>> android-developers+unsubscr...@googlegroups.com<android-developers%2Bunsubs > > > > > >>>>>> cr...@googlegroups.com><android-developers%2Bunsubs > > > > cr...@googlegroups.com> > > > > > >>>>>> For more options, visit this group at > > > > > >>>>>>http://groups.google.com/group/android-developers?hl=en > > > > > > >>>>> -- > > > > > >>>>> You received this message because you are subscribed to the > > > > > >>>>> Google > > > > > >>>>> Groups "Android Developers" group. > > > > > >>>>> To post to this group, send email to > > > > > >>>>> android-developers@googlegroups.com > > > > > >>>>> To unsubscribe from this group, send email to > > > > > >>>>> android-developers+unsubscr...@googlegroups.com<android-developers%2Bunsubs > > > > > >>>>> cr...@googlegroups.com><android-developers%2Bunsubs > > > > cr...@googlegroups.com> > > > > > >>>>> For more options, visit this group at > > > > > >>>>>http://groups.google.com/group/android-developers?hl=en > > > > > > >>>> -- > > > > > >>>> You received this message because you are subscribed to the > > > > > >>>> Google > > > > > >>>> Groups "Android Developers" group. > > > > > >>>> To post to this group, send email to > > > > > >>>> android-developers@googlegroups.com > > > > > >>>> To unsubscribe from this group, send email to > > > > > >>>> android-developers+unsubscr...@googlegroups.com<android-developers%2Bunsubs > > > > > >>>> cr...@googlegroups.com><android-developers%2Bunsubs > > > > cr...@googlegroups.com> > > > > > >>>> For more options, visit this group at > > > > > >>>>http://groups.google.com/group/android-developers?hl=en > > > > > > >>> -- > > > > > >>> You received this message because you are subscribed to the Google > > > > > >>> Groups "Android Developers" group. > > > > > >>> To post to this group, send email to > > > > android-developers@googlegroups.com > > > > > >>> To unsubscribe from this group, send email to > > > > > >>> android-developers+unsubscr...@googlegroups.com<android-developers%2Bunsubs > > > > > >>> cr...@googlegroups.com><android-developers%2Bunsubs > > > > cr...@googlegroups.com> > > > > > >>> For more options, visit this group at > > > > > >>>http://groups.google.com/group/android-developers?hl=en > > > > > > >> -- > > > > > >> You received this message because you are subscribed to the Google > > > > > >> Groups "Android Developers" group. > > > > > >> To post to this group, send email to > > > > android-developers@googlegroups.com > > > > > >> To unsubscribe from this group, send email to > > > > > >> android-developers+unsubscr...@googlegroups.com<android-developers%2Bunsubs > > > > > >> cr...@googlegroups.com><android-developers%2Bunsubs > > > > cr...@googlegroups.com> > > > > > >> For more options, visit this group at > > > > > >>http://groups.google.com/group/android-developers?hl=en > > > > > > > -- > > > > > > You received this message because you are subscribed to the Google > > > > > > Groups "Android Developers" group. > > > > > > To post to this group, send email to > > > > android-developers@googlegroups.com > > > > > > To unsubscribe from this group, send email to > > > > > > android-developers+unsubscr...@googlegroups.com<android-developers%2Bunsubs > > > > > > cr...@googlegroups.com><android-developers%2Bunsubs > > > > cr...@googlegroups.com> > > > > > > For more options, visit this group at > > > > > >http://groups.google.com/group/android-developers?hl=en > > > > > -- > > > > You received this message because you are subscribed to the Google > > > > Groups "Android Developers" group. > > > > To post to this group, send email to android-developers@googlegroups.com > > > > To unsubscribe from this group, send email to > > > > android-developers+unsubscr...@googlegroups.com<android-developers%2Bunsubs > > > > cr...@googlegroups.com> > > > > For more options, visit this group at > > > >http://groups.google.com/group/android-developers?hl=en -- You received this message because you are subscribed to the Google Groups "Android Developers" group. 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