Run time exception when planning trip

[vreixo]

This has been spotted on PlayStore console, and it has already happen to six users, some with latest version.

It seems that sometimes there are two concurrent trip requests and this is causing a problem. At the moment I didn't further investigate or tried to reproduce the problem.

Here is the stacktrace:

java.lang.RuntimeException: An error occured while executing doInBackground()
at android.os.AsyncTask$3.done(AsyncTask.java:299)
at java.util.concurrent.FutureTask$Sync.innerSetException(FutureTask.java:273)
at java.util.concurrent.FutureTask.setException(FutureTask.java:124)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:307)
at java.util.concurrent.FutureTask.run(FutureTask.java:137)
at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:230)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1076)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:569)
at java.lang.Thread.run(Thread.java:856)
Caused by: java.lang.RuntimeException: Can't create handler inside thread that has not called Looper.prepare()
at android.os.Handler.<init>(Handler.java:121)
at android.widget.Toast$TN.<init>(Toast.java:347)
at android.widget.Toast.<init>(Toast.java:93)
at android.widget.Toast.makeText(Toast.java:240)
at edu.usf.cutr.opentripplanner.android.tasks.TripRequest.doInBackground(TripRequest.java:106)
at edu.usf.cutr.opentripplanner.android.tasks.TripRequest.doInBackground(TripRequest.java:60)
at android.os.AsyncTask$2.call(AsyncTask.java:287)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:305)
... 5 more