The error only occurs when using apk release. Is this a problem with permissions in the manifest XML file? I also use Jsoup. I have attached the log part below:
10-16 19:21:09.109: E/AndroidRuntime(9237): FATAL EXCEPTION: AsyncTask #1 10-16 19:21:09.109: E/AndroidRuntime(9237): java.lang.RuntimeException: An error occured while executing doInBackground() 10-16 19:21:09.109: E/AndroidRuntime(9237): at android.os.AsyncTask$3.done(AsyncTask.java:278) 10-16 19:21:09.109: E/AndroidRuntime(9237): at java.util.concurrent.FutureTask$Sync.innerSetException(FutureTask.java:273) 10-16 19:21:09.109: E/AndroidRuntime(9237): at java.util.concurrent.FutureTask.setException(FutureTask.java:124) 10-16 19:21:09.109: E/AndroidRuntime(9237): at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:307) 10-16 19:21:09.109: E/AndroidRuntime(9237): at java.util.concurrent.FutureTask.run(FutureTask.java:137) 10-16 19:21:09.109: E/AndroidRuntime(9237): at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:208) 10-16 19:21:09.109: E/AndroidRuntime(9237): at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1076) 10-16 19:21:09.109: E/AndroidRuntime(9237): at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:569) 10-16 19:21:09.109: E/AndroidRuntime(9237): at java.lang.Thread.run(Thread.java:856) 10-16 19:21:09.109: E/AndroidRuntime(9237): Caused by: java.lang.ExceptionInInitializerError 10-16 19:21:09.109: E/AndroidRuntime(9237): at aabf<init>(Unknown Source) 10-16 19:21:09.109: E/AndroidRuntime(9237): at aabe<init>(Unknown Source) 10-16 19:21:09.109: E/AndroidRuntime(9237): at aacdh.b(Unknown Source) 10-16 19:21:09.109: E/AndroidRuntime(9237): at aacdh.a(Unknown Source) 10-16 19:21:09.109: E/AndroidRuntime(9237): at aacba(Unknown Source) 10-16 19:21:09.109: E/AndroidRuntime(9237): at aacad.a(Unknown Source) 10-16 19:21:09.109: E/AndroidRuntime(9237): at aaaaa(Unknown Source) 10-16 19:21:09.109: E/AndroidRuntime(9237): at aaaje(Unknown Source) 10-16 19:21:09.109: E/AndroidRuntime(9237): at aaaea(Unknown Source) 10-16 19:21:09.109: E/AndroidRuntime(9237): at gilz.magtxt4droid.ba(Unknown Source) 10-16 19:21:09.109: E/AndroidRuntime(9237): at gilz.magtxt4droid.b.doInBackground(Unknown Source) 10-16 19:21:09.109: E/AndroidRuntime(9237): at android.os.AsyncTask$2.call(AsyncTask.java:264) 10-16 19:21:09.109: E/AndroidRuntime(9237): at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:305) 10-16 19:21:09.109: E/AndroidRuntime(9237): ... 5 more 10-16 19:21:09.109: E/AndroidRuntime(9237): Caused by: java.lang.ExceptionInInitializerError 10-16 19:21:09.109: E/AndroidRuntime(9237): at aabk<clinit>(Unknown Source) 10-16 19:21:09.109: E/AndroidRuntime(9237): ... 18 more 10-16 19:21:09.109: E/AndroidRuntime(9237): Caused by: java.lang.NullPointerException 10-16 19:21:09.109: E/AndroidRuntime(9237): at java.util.Properties.load(Properties.java:246) 10-16 19:21:09.109: E/AndroidRuntime(9237): at aabjd(Unknown Source) 10-16 19:21:09.109: E/AndroidRuntime(9237): at aabj<clinit>(Unknown Source) 10-16 19:21:09.109: E/AndroidRuntime(9237): ... 19 more
Apparently, the error did not occur when I excluded Jsoup from obfuscation using Proguard.