Matlab coder java.awt.A​WTEventMul​ticaster.h​ierarchyCh​anged(AWTE​ventMultic​aster.java​:498)

Hi,

I am running the Matlab Coder to generate a mex function. When calling the testing function, that should "exercise" the mex function, I get this red message

java.awt.AWTEventMulticaster.hierarchyChanged(AWTEventMulticaster.java:498)

However, one the testing function is done, I can still create a mex file. Is it something I should be worried about?!

[Darshan Ramakant Bhat]

Can you please try the suggestions given in the below post :

https://www.mathworks.com/matlabcentral/answers/439931-how-can-i-resolve-java-error-when-plotting-with-r2018b

[PatrizioGraziosi]

Hi Maria,

I have the same issue, I think.

When I check for issues with the matlab coder app, some times the following error is printed in the matlab command prompt:

Exception in thread "AWT-EventQueue-0": java.lang.StackOverflowError

and after that, for 1024 times,

at java.awt.AWTEventMulticaster.hierarchyChanged(AWTEventMulticaster.java:498)

when this happens, matlab freezes for minutes.

Could you fix your problem?

[Ken Watkinson]

I am getting the same issue. Has a solution for this been posted?

[Mohammad Hussein Yoosefian Nooshabadi]

Hi,

Yeah. This message keeps showing during "Running test file with MEX" for me too. But the test runs seemingly without any problem.

[Joris Brouwer]

I often run in the same issue. Today again. I got it with the slightly more complex projects I run in ML Coder. It happens often after using the Coder app for multiple iterations in the 'Check for run-time issues' tab, each time correcting small coder incompatibilities in my underlying Matlab code. After a while it seems like some memory issues play up and give this error (which is 100-1000 of lines and stalls the system for a while).

In my case simply restarting Matlab and continueing solves the problem for a while.

As an extra note: I got the feeling it especialy plays up when there are difficult to asses errors/incompatibilities in my code which often only show up when running the mex.