I am trying to figure out from the code as to why - CursorWindowAllocationException is occuring .
On multiple iterations of checking / testing, I was not able to figure out why this issue is appearing as I have taken care of all the cursor close() operations .
This issue has been reported by customers using our app and I dont have the setup to reproduce this issue. is their any way to catch this exception ?
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My application sometimes crashes on some devices, with this error:
IndexOutOfBoundsException: Inconsistency detected
After some changes and spend a couple of hours, not sure if it fixed or not.
I read some of the answers and did what they say .like this post and this.
But how do I sure if the changes are working while I don't know when the exceptions occur?
How to create a situation that leads to the exception?
We are working on an Android app. We are using the Chilkat library to handle the email communication and it works well. Although, there may be a "issue" involving some JNI communication. From internet research and discussing with Chilkat, the problem may involve how EMOJI's are processed in messages.
Periodically, we get an error that hard crashes the app and it comes from the library call. It is a single line call that sometimes crashes depending on something within the message itself. Our call is...
tmpstr=email.getHtmlBody();
The hard crash error we get is:
JNI DETECTED ERROR IN APPLICATION: input is not valid Modified UTF-8: illegal start byte 0xf0
Again, doing some internet searches on this message... this apparently is a more common issue than anyone wants but still needs to be addressed. Chilkat is working on a fix but in the meantime, we need to continue with the app.
What I am trying to figure out if there is a way that we can catch the error and prevent the app from crashing... maybe just flagging this message and continuing with the next message?
Seeing how I have never tried to catch an error from a 3rd party library, I am not sure where to go with this.
Any suggestions or examples that might help would be greatly appreciated.
Well, depending on error, you can always try to "fix" it. Working with legacy code is always hard and all you can do here are some hacks.
You can do few things here:
try to catch signals
make sure your app doesn't exit your JVM
Take a look here: http://jnicookbook.owsiak.org/recipe-No-015/ and here: http://jnicookbook.owsiak.org/recipe-No-016/
Maybe you will find some solution based on these samples.
Errors are not the same as Exceptions and now my Android app keeps crashing with an Error during debugging from Android Studio without breaking (the app just quits).
My question is thus, is it possible to make Android Studio break on Errors and not just Exceptions so that I may figure out what is causing this horrible bug?
If not, what is the best way to debug this?
Thanks!
You can capture the fatal errors with the try/catch and the Exception class. In my case when my app crashes for application errors if I have try/catch I can see the lane and capture the error and repair it,basically I never found error that try/catch can't capture it. I think you need start narrow your code, part by part, finally you locate the code when your app crashes. Not existing a magic formula for find a fatal error, just need a time and revise your code.
I know there is "try" and "catch" for specific parts of code, that if they fail it goes in catch and you can display the crash exception. But is there a way to do it over all the code in case of a crash?
Recently I have posted a beta verison of an app game I made, and some users reported random crashes which never occurred on my device, I really want to know what causes those crashes but it is a problem asking each one of them to debug it and check logs. So I thought of displaying a toast with the exception when it happens, but I don't know if it is possible and if it is how to do it.
I advise you to check out "Beta by Crashlytics" and "Crashlytics": https://get.fabric.io/. Both are frameworks that are extremely easy to set up and use. You use the first one in beta stages of your app, and the other one when your app is live.
There is a great deal of difference between could and should. For instance,
public static void main(String args[]){
try{
} catch (Exception e){
}
}
will compile. It will accept any exception heading its way. However, you should not do this. Exceptions are good for programming since they let you know where you went wrong and how to correct it. You should work on correctly testing your code as opposed to finding out ways to make sure what you wrote doesn't tell you its broken. I remember working on this and finding it very frustrating when I was beginning. Believe me it is better this way. I hope this helps.
I am working on an app with remote exception-handling. That is, if an exception happens somewhere that wasn't expected, the app closes gracefully and a report is generated in the log on our server. I am using the UncaughtExceptionHandler interface for this and it works well except that it does not seem to catch Throwables that are actually Errors.
Obviously, the best solution is to just handle everything and/or not allow anything to throw an Error in the first place. For the sake of thorough error-handling, however, I would like to be able to catch unexpected Errors as well as Exceptions. I was unable to find anything like an UncaughtErrorHandler in Android, does anyone know if such a thing is possible?
There is generally no way to catch Errors: typically once an Error happens you can't actually intercept it. As far as I know there is no fully-supported mechanism in the Java language to catch these, and there really isn't any one on Android either.
You might want to check out several SDKs like Crittercism. A rudimentary way to achieve what you want is to use Thread.setDefaultUncaughtExceptionHandler().