​Why does MATLAB Coder app give Java exception error when accessed through remote connection (Linux)?

2015 5 28
1 个回答
回答已采纳
更新时间：2015 5 28
6 次查看（30 天）

0 个投票

We have a problem with MATLAB Coder app gives Java exception error when accessed through remote connection (Linux).
Currently, MATLAB R2015a is installed in 64-bit Linux server and we are trying to display on Windows 7 machine using Cygwin-X X server.
However, the following exception (please see B below) happens while trying to open (from the remote machine) 
the "MATLAB Coder" application by clicking on the App's icon in the Application TAB. 
We can start MATLAB, and simple commands such as 
    >> plot(rand(10)) 
works without any problem (Line plot Figure properly displayed). 
Is there any workaround or any guidance troubleshooting this? 
A. Environment 
Trial>> !uname -a 
Linux mendelejev.argo-graph.co.jp 3.2.0-4-amd64 #1 SMP Debian3.2.65-1+deb7u2 x86_64 GNU/Linux 
B. Exception 
-------------BEGIN 
Exception in thread "AWT-EventQueue-0" java.lang.ExceptionInInitializerError 
at 
com.mathworks.toolbox.coder.app.CoderApp$8.run(CoderApp.java:390) 
at 
com.mathworks.mwswing.MJUtilities.runOnEventDispatchThread(MJUtilities.java:911) 
at 
com.mathworks.toolbox.coder.app.CoderApp.setup(CoderApp.java:384) 
at 
com.mathworks.toolbox.coder.app.CoderApp.access$000(CoderApp.java:62) 
at 
com.mathworks.toolbox.coder.app.CoderApp$3.run(CoderApp.java:249) 
at 
com.mathworks.toolbox.coder.app.CoderApp$3.run(CoderApp.java:246) 
at 
com.mathworks.toolbox.coder.app.CoderAppModel$1$1$1.run(CoderAppModel.java:182) 
at java.awt.event.InvocationEvent.dispatch(Unknown Source) 
at java.awt.EventQueue.dispatchEventImpl(Unknown Source) 
at java.awt.EventQueue.access$200(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) 
Caused by: java.lang.NullPointerException 
at 
com.mathworks.toolbox.coder.wfa.core.Animator.getScreenRefreshRate(Animator.java:174) 
at 
com.mathworks.toolbox.coder.wfa.core.Animator.<clinit>(Animator.java:24) 
... 21 more 
----------------END 
 

请先登录，再回答此问题。

 采纳的回答

0 个投票

The NullPointerException occurs in a part of the code where we query display information from Java.
Unfortunately, this territory is not under our control.
The results of such queries depend on the JDK implementation which change with platform and environment. 
Yet, the development team is considering a guard against this specific exception.
Currently there are no workarounds.

更多回答（0 个）

类别

在 帮助中心 和 File Exchange 中查找有关 Texas Instruments C2000 Processors 的更多信息

产品

版本

R2015a

标签

尚未输入任何标签。

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by