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  1. ,

    You try to parse a String that contains non-numeric characters to an int. The string must contain decimal characters only, optionally beginning with a + or - sign.

  2. ,

    Can occur when you try to convert a String to a numeric value but the String is not well formatted for the conversion.

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java.lang.NumberFormatException: Invalid int: ""	at java.lang.Integer.invalidInt(Integer.java:137)	at java.lang.Integer.parseInt(Integer.java:358)	at java.lang.Integer.parseInt(Integer.java:331)	at pw.thedrhax.mosmetro.updater.UpdateCheckTask$Branch.(UpdateCheckTask.java:139)	at pw.thedrhax.mosmetro.updater.UpdateCheckTask.doInBackground(UpdateCheckTask.java:64)	at pw.thedrhax.mosmetro.updater.UpdateCheckTask.doInBackground(UpdateCheckTask.java:19)	at android.os.AsyncTask$2.call(AsyncTask.java:288)	at java.util.concurrent.FutureTask.run(FutureTask.java:237)	at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:231)	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112)	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587)	at java.lang.Thread.run(Thread.java:841)