Android :: IOException - Received Authentication Challenge Is Null - Apache Harmony - Android
Aug 31, 2009
I am trying to send a GET via Android's HttpURLConnection (which is an org.apache.harmony.luni.internal.net.www.protocol.http.HttpURLConnection), and upon receiving the response, an IOException is thrown:
in doRequestInternal(): "Received authentication challenge is null"
What does this error mean, and what is causing this? I am writing OAuth parameters to the Authorization header, but I do this on other occasions, too, without problems.
CODE:.............................
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Aug 31, 2009
I am using HttpURLConnection to send a GET request to a server. Upon reading the response code, the Android implementation of HttpURLConnection.doRequestInternal() throws an exception:
"java.io.IOException: Received authentication challenge is null"
I don't even get what the error is trying to tell me. I write an OAuth param string to the Authorization header, but this works fine on other occasions. There is nothing peculiar about my request apart from that.
Any idea what this means, what is causing this and how to get around it? This works fine with Sun's Java implementation, so I guess it's a problem with Apache Harmony?
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Jun 29, 2010
I need to parse an UTF-8 encoded input stream, so I think the most appropriate method is to use
CODE:..............
For that I need to import org.apache.harmony.xml.ExpatReader but I cannot figure out how, I mean which Java package must I install from http://harmony.apache.org/download.cgi?
Or is there an alternative method to accomplish the same goal?
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Aug 17, 2010
I have been working with dnsjava to do a lot of DNS lookups, using the Lookup class with its own resolver per lookup, and also with a single shared resolver. No matter how I invoke it, there are always collections of sockets left open at the end of the process, and eventually my process runs out of file descriptors and is killed.
Tracing the code, I found that creating a Selector object causes two additional sockets to be created, and these are the two that are never closed. The dnsjava code is calling the Selector's close() method (I have stepped over that and verified that the two sockets, sink and source, are left open after it).
Is there some way I can force those sockets to close? I don't see any public API to get the source and sink socket references from the Selector class, but perhaps I am missing something?
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Dec 4, 2009
How can I use org.apache.harmony.luni.platform.OSNewtorkSystem in Android SDK ?
I'm working with Android SDK 1.5. And I'm programming a application running on Android Emulator.
This application used a library for communication using TCP/IP.
In debug mode, when create a instance of org.apache.harmony.nio.internal.PipeImpl class a message that is "Permission denied (maybe missing INTERNET permission)" is thrown.
CODE:.........................
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Nov 3, 2010
I'm developing an Android app which needs to perform an HTTPPost to get a token back. Then use that token for subsequent calls. When I perform the initial call to get the token, it throws an exception: org.apache.http.auth.MalformedChallengeException: Authentication challenge is empty
Here is my code:...............
I googled "Authentication challenge is empty", and one this website: http://fmpwizard-scala.posterous.com/using-apache-httpclient-authenti... he had a similar problem. He determined that his web server requires preemptive authentication. Which I believe ours does too. I tried implementing what he did, and still, no dice.
I've hard coded the token in other requests, and I am able to perform HTTPGet calls.
What is the Authentication Challenge that I'm missing?
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Jun 2, 2010
Basically what I need to do is to perform digest authentication. First thing I tried is the official example available here.
But when I try to execute it(with some small changes, Post instead of the the Get method) I get a
CODE:..................
When this failed I tried using:
CODE:.................
At first I have only overridden "realm" and "nonce" DigestScheme parameters. But it turned out that PHP script running on the server requires all other params, but no matter if I specify them or not DigestScheme doesn't generate them in the Authorization RequestPreperty when I call its authenticate() method. And PHP script returns HTTP response code 200 with a message that PHP script requires cnonce, nc and qop parameters.
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Sep 23, 2010
When my app loads, I fill my android.app.Application with some data. The app runs fine as I use it and all the data is available. However, when I leave the app over night and look at it again the next day, I receive NullPointerExceptions when attempting to use that same data. I do not believe Application objects get garbage collected, so I have no idea what is going on? I also lose static objects in classes used by my Activity classes. I am on Froyo 2.2 on a Google Nexus One. Looks like someone else had a similiar issue: http://groups.google.com/group/android-developers/browse_thread/threa...
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Sep 28, 2010
I'm trying to use the Amazon Web Services java sdk jar but it has references to org.apache.commons.httpclient. All I seem to have in my Android sdk is org.apache.commons.http.client, which is a different namespace and obviously causes the build to fail. I'm new to Java and Android dev... is there a way to "map" one to the other or create some sort of symbolic link? If not, does that mean I have to import a "standard" org.apache.commons library?
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Oct 6, 2010
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Mar 18, 2010
Got IOException in android?
CODE:..............
why i got it?
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Apr 25, 2009
I'm trying to parse an XML file from res/raw or assets/ using the javax SAX parser. When the file is too large (~ 1MB), the parse(...) method throws an IOException without further information, such as message or inner exception. When I reduce file size to e. g. 600 kB, it's working again.
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Aug 7, 2010
I have just started with Android development, and facing one issue in the android application.
When application tries to read the data from file (raw resources), it throws IOException on readLine() function. code is as below:
CODE:.............
The reader.readLine() function is throwing the exception. Do I need to mention any kind of additional permission for reading the file?
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Jul 29, 2010
I am trying to get the geo codes for an address.
I am using: Geocoder geocoder = new Geocoder(GeoNoteEditor.this, Locale .getDefault()); List<Address> addressList = null; addressList = geocoder.getFromLocationName(addressString, 1);
The problem is that I am getting an IOException sometimes when I call getFromLocationName for the same addressString. This does not happen all the time. When I get the IOException, if I repeat the getFromLocation call, sometimes it works sometimes I get the IOException again.
How do I prevent the IOException from happening?
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Aug 13, 2009
I'm running into a strange problem while reading from an InputStream on the Android platform. I'm not sure if this is an Android specific issue, or something I'm doing wrong in general.
The only thing that is Android specific is this call:
CODE:........
This returns an InputStream for a file from the Android assets. Anyways, here's where I run into the issue:
CODE:........
When the read() executes it throws an IOException. The weird thing is that if I do two sequential single byte reads (or any number of single byte reads), there is no exception. Ie, this works:
CODE:........
Any idea why two sequential single byte reads work but one call to read both at once throws an exception? The InputStream seems fine... is.available() returns over a million bytes (as it should).
Stack trace shows these lines just before the InputStream.read():
CODE:........
Changing the buffer size to a single byte still throws the error. It looks like the exception is only raised when reading into a byte array.
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Jul 29, 2009
I'm trying to write a basic application with http get request. Eclipse validated my code, but when I using IOException in Android console I have this strange messages:
CODE:...............
And my application doesn't load into the emulator.
This is my code:
CODE:..................
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Jan 18, 2010
The code below works perfectly for real devices running on 1.5, 1.6 and 2.0 as well as the emulator running on 2.1. However, executing it on the Nexus One (running 2.1) raises an IOException:Code...
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Feb 1, 2010
Looking for a way to root droid and block all adult media. So far the only conclusion that I can arrive is to root then delete market and browser.
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Apr 21, 2010
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I'm using the following UUID private static final UUID MY_UUID = UUID.fromString("00001101-0000-1000-8000-00805F9B34FB");
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Oct 26, 2010
I am trying to upload a image file to server and get back a JSON Object. But an IOException was thrown out. Following is my codes, can anybody have a look at them?
CODE:.....................
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Feb 15, 2010
I'm using Windows 7 Ultimate 64 bit edition and Eclipse 3.5 with the Android plugin. Every time I create a new project and try to publish it, I get an error like this:
CODE:............
The emulator is working perfectly, adb can see it, I can even logcat from it, but it can't push or pull anything from it. Nothing appears in logcat to suggest the emulator even received any command. It doesn't matter if I have the Firewall on or off, or if I try invoking adb install to bypass the plugin. Nothing works even with a blank app.
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Oct 5, 2010
I am getting this log COntiniously in my class, Can any body suggest me how to handle this SSLSocketIMpl handshake in 2.1,
I found that this is known issue in froyo. 8558.
CODE:...............
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Nov 20, 2009
Running Eclipse on Ubuntu 9.10, connected real HTC Dream which works just fine on another (Windows) machine.
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Aug 6, 2009
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According to this thread my problem may be a permission problem. http://groups.google.se/group/android-developers/browse_thread/thread...
I get the same error. But in my case it only occurs when I use FileDescriptor!?! The use case differs however, because I use a resource stored in the bundle. I have s0.mp3 safely stored in the project /res/raw and it successfully plays when I use SoundPool or MediaPlayer.create. And the log print tells me I referenced the correct file and stay safely in my package.
I'm sure my way of getting the fd out from a package resource is the problem, I didn't find any other way... But why didn't setDataSource throw the exception instead of a printout? And why on earth is the same resource happily played one way but not the other? Seems like a design flaw rather than a security raise. Should I look in the MediaPlayer.create code to see how they get around the problem or can you help me understand how it works?
This is a test code snippet: (from onCreate of a simple Activity)
CODE:...........
And the error:
CODE;..............
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Dec 10, 2009
Is there someone troubled the same issue.
The code in run.
CODE:.............
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Sep 8, 2009
I am trying to write a sample program to record the video (say camcorder application). When i run my program using the emulator (I have android-sdk- windows-1.5_r3) I see java.io.IOException: prepare failed. error in logcat output.
Further I can see that I have came across this error when i call MediaRecorder.prepare() from CamcorderActivity.surfaceCreated() But I am surprised to see that activity got launched and I am seeing the camera preview! Again the preview is seen only in half of the screen! Its weird!!!
Further when i do recorder.start() to record the video I get java.lang.IllegalStateException. Yes this is obvious since the prepare () has failed. But the question is why prepare() has failed ?
Here is my code ... package com.example;
CODE:................
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Jul 21, 2010
I have a method that I use to get the auth token for a user. I have been using it for months with no problem.
All of the sudden today it stated failing with: IOException java.net.UnknownHostException: Host is unresolved: www.google.com:443
The manifest contains <uses-permission android:name="android.permission.INTERNET" />
The code has not changed since it worked. It is:
CODE:...................
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Mar 8, 2010
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Aug 26, 2010
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Aug 19, 2009
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