Question

I’m running a console application under Windows on a remote remote computer.

The following error seems to appears regularly when I log into the remote computer via RDP (Remote Desktop Protocol). It also seems to occur on my local machine when I resize the desktop, or if the nVidia video driver crashes (which is rarely).

java.lang.NullPointerException
at twslaunch.jtscomponents.effect.i.c(i.java:172)
at jtscomponents.plaf.ze.run(ze.java:178)
at java.awt.event.InvocationEvent.dispatch(Unknown Source)
at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
at java.awt.EventQueue.access$000(Unknown Source)
at java.awt.EventQueue$3.run(Unknown Source)
at java.awt.EventQueue$3.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)

The problem occurs under Windows 7, Windows Server 2008 and both Java v6 and Java v7.

Answer 1

The following answer completely resolved the issue – now, when I log in via RDP, the java.lang.NullPointerException messages have completely disappeared.

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

Quote:

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.