When i close Matlab error!

I am using Ubuntu 20.10 and everytime i exit Matlab i get this error below:

And MATLAB Version: 9.5.0.944444 (R2018b)

MATLAB is selecting SOFTWARE OPENGL rendering.

Exception in thread "Thread-9": java.lang.NullPointerException

at com.teamdev.jxbrowser.chromium.internal.ipc.IPC.c(Unknown Source)

at com.teamdev.jxbrowser.chromium.internal.ipc.IPC.b(Unknown Source)

at com.teamdev.jxbrowser.chromium.internal.ipc.IPC.a(Unknown Source)

at com.teamdev.jxbrowser.chromium.internal.ipc.b.run(Unknown Source)

at java.lang.Thread.run(Thread.java:748)

Is it some libraries that doesn't exist or?

Answer 1

[Kiran Felix Robert]

Hi Jon,

I recommend you to upgrade MATLAB to the newest version R2021a.

Or you can also consider referring this answer thread to fix the java exception.

The Bug Report from the answer thread - (Bug Report 1885601) gives you a workaround by installing the following library,

sudo apt-get install libgconf2-4

[Jon Tang]

Hi @Kiran Felix Robert i did this but i got back below:

sudo apt-get install libgconf2-4

Reading package lists... Done

Building dependency tree

Reading state information... Done

Package libgconf2-4 is not available, but is referred to by another package.

This may mean that the package is missing, has been obsoleted, or

is only available from another source

E: Package 'libgconf2-4' has no installation candidate