App crashed during some download failure

[orionlee]

App Version: 1.57b

Problem: The app crashed in certain download failures (either by pressing download button or just getting a chapter from fanfiction).

Root cause: when the network is unstable, and the underlying Jsoup in some cases will convert checked IOException to UncheckedIOException, which then bypasses all error handling in the app and causes the app crashed.

Example stacktrace:

E/AndroidRuntime: FATAL EXCEPTION: Story Loader Thread
    Process: com.spicymango.fanfictionreader, PID: 20636
    java.lang.RuntimeException: An error occurred while executing doInBackground()
        at android.support.v4.content.ModernAsyncTask$3.done(ModernAsyncTask.java:161)
        at java.util.concurrent.FutureTask.finishCompletion(FutureTask.java:354)
...
     Caused by: org.jsoup.UncheckedIOException: java.io.IOException: Underlying input stream returned zero bytes
        at org.jsoup.parser.CharacterReader.bufferUp(CharacterReader.java:60)
        at org.jsoup.parser.CharacterReader.<init>(CharacterReader.java:35)
        at org.jsoup.parser.CharacterReader.<init>(CharacterReader.java:39)
        at org.jsoup.parser.TreeBuilder.initialiseParse(TreeBuilder.java:35)
        at org.jsoup.parser.HtmlTreeBuilder.initialiseParse(HtmlTreeBuilder.java:66)
        at org.jsoup.parser.TreeBuilder.parse(TreeBuilder.java:44)
        at org.jsoup.parser.Parser.parseInput(Parser.java:39)
        at org.jsoup.helper.DataUtil.parseInputStream(DataUtil.java:151)
        at org.jsoup.helper.HttpConnection$Response.parse(HttpConnection.java:832)
        at org.jsoup.helper.HttpConnection.get(HttpConnection.java:289)
        at com.spicymango.fanfictionreader.activity.reader.StoryDisplayActivity$FanFictionLoader.getStoryFromSite(StoryDisplayActivity.java:638)
        at com.spicymango.fanfictionreader.activity.reader.StoryLoader.loadInBackground(StoryLoader.java:96)
        at com.spicymango.fanfictionreader.activity.reader.StoryLoader.loadInBackground(StoryLoader.java:15)
        at android.support.v4.content.AsyncTaskLoader.onLoadInBackground(AsyncTaskLoader.java:302)
        at android.support.v4.content.AsyncTaskLoader$LoadTask.doInBackground(AsyncTaskLoader.java:57)
        at android.support.v4.content.AsyncTaskLoader$LoadTask.doInBackground(AsyncTaskLoader.java:45)
        at android.support.v4.content.ModernAsyncTask$2.call(ModernAsyncTask.java:138)
        at java.util.concurrent.FutureTask.run(FutureTask.java:237)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1133) 
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:607) 
        at java.lang.Thread.run(Thread.java:761) 
     Caused by: java.io.IOException: Underlying input stream returned zero bytes
...