Problem cast MWBuiltInArray to MWNumericArray
1 view (last 30 days)
Show older comments
Hi,
I have trouble using the MCR with Java. I have a function that I call every 40 seconds that works fine for about 39 hours and suddenly I get this error message:
java.lang.ClassCastException: com.mathworks.toolbox.javabuilder.MWBuiltinArray cannot be cast to com.mathworks.toolbox.javabuilder.MWNumericArray
Every single time I try to access the function after it first failed I get the same message and after some more hours the whole software just stops.
This error appears when I try to access the output list of the function:
this.flag = ((MWNumericArray) output.get(0)).getDouble();
The value I try to access is initialized at 0 and under certain circumstance can become 1. No other value is possible.
My function usually takes 1000ms-ish to process but when it first fails it lasted for around 500~600ms and then it seems it doesn't go to the function anymore as it spends less than 1ms in it.
Does anyone have an idea why would that be?
2 Comments
Walter Roberson
on 26 Dec 2012
Memory leak? Or just plain too big an array at that point? What size is your java heap set to?
Answers (0)
See Also
Categories
Find more on Java Package Integration in Help Center and File Exchange
Products
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!