Why do I receive Java exceptions when I log in to my computer via Remote Desktop while MATLAB is running?

I run MATLAB with GUI/IDE/Editor open on Computer A and log in using Remote Desktop Connection on Computer B. When I connect and access the MATLAB GUI/IDE/Editor I observe a large number of errors start being generated.

A sample is shown below:

 Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException

 at com.sun.java.swing.plaf.windows.XPStyle$Skin.getWidth(Unknown Source)

 at com.sun.java.swing.plaf.windows.XPStyle$Skin.getWidth(Unknown Source)

 at com.sun.java.swing.plaf.windows.WindowsScrollBarUI.paintThumb(Unknown Source)

 at javax.swing.plaf.basic.BasicScrollBarUI.paint(Unknown Source)

 at javax.swing.plaf.ComponentUI.update(Unknown Source)

 at javax.swing.JComponent.paintComponent(Unknown Source)

 at javax.swing.JComponent.paint(Unknown Source)

 at javax.swing.JComponent.paintChildren(Unknown Source)

 at javax.swing.JComponent.paint(Unknown Source)

 at javax.swing.JComponent.paintToOffscreen(Unknown Source)

 at javax.swing.RepaintManager$PaintManager.paintDoubleBuffered(Unknown Source)

 at javax.swing.RepaintManager$PaintManager.paint(Unknown Source)

 at javax.swing.BufferStrategyPaintManager.paint(Unknown Source)

 at javax.swing.RepaintManager.paint(Unknown Source)

 at javax.swing.JComponent._paintImm

Answer 1

[MathWorks Support Team]

One resolution is based on the fact that for slower connections, the theme is changed while logging in. To resolve this, you require a Fast connection to your remote machine (10 Mbps or higher with low latency). Multiple monitor setups and drastic resolution changes between the two computers complicate this issue. These cases are not covered here.

Assuming the requirements are met, you can change the Connection speed setting under the "Experience" tab on the Remote Desktop client to "LAN (10 Mbps or higher)" before connecting.

NOTE: If the above causes an undesired experience using Remote Desktop, you may revert back to the old connection speed setting in Remote Desktop and make sure that the look and feel of both operating systems is set to the same. This can be changed by navigating from the Control Panel to Display and then Themes.