Java Error when using compiled matlab code (GUI) using the Instrument Control Toolbox

Hello,

I'm trying to compile and use an EXE of a Matlab GUI that I've written to control a few instruments and run an automated data collection cycle on a long term test. The code works fine as a *.m, however it stops and spits out a java error when I run it compiled. The error comes out thus:

C:\...\exetest>VoltageRamp

C:\...\exetest>Error using instrhwinfo (line 152)

Java exception occurred:
java.lang.NoClassDefFoundError: com/sun/jna/Library
      at java.lang.ClassLoader.defineClass1(Native Method)
      at java.lang.ClassLoader.defineClass(Unknown Source)
      at java.security.SecureClassLoader.defineClass(Unknown Source)
      at java.net.URLClassLoader.defineClass(Unknown Source)
      at java.net.URLClassLoader.access$100(Unknown Source)
      at java.net.URLClassLoader$1.run(Unknown Source)
      at java.net.URLClassLoader$1.run(Unknown Source)
      at java.security.AccessController.doPrivileged(Native Method)
      at java.net.URLClassLoader.findClass(Unknown Source)
      at java.lang.ClassLoader.loadClass(Unknown Source)
      at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
      at java.lang.ClassLoader.loadClass(Unknown Source)
      at com.mathworks.toolbox.testmeas.util.mwSystem.silenceLoadLibrary(mwSystem.java:20)
      at com.mathworks.toolbox.testmeas.util.mwSystem.silence(mwSystem.java:27)
      at com.mathworks.toolbox.testmeas.util.mwSystem.load(mwSystem.java:42)
      at com.mathworks.toolbox.instrument.GpibDll.findValidAdaptors(GpibDll.java:783)
Caused by: java.lang.ClassNotFoundException: com.sun.jna.Library
      at java.net.URLClassLoader$1.run(Unknown Source)
      at java.net.URLClassLoader$1.run(Unknown Source)
      at java.security.AccessController.doPrivileged(Native Method)
      at java.net.URLClassLoader.findClass(Unknown Source)
      at java.lang.ClassLoader.loadClass(Unknown Source)
      at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
      at java.lang.ClassLoader.loadClass(Unknown Source)
      ... 16 more

Error in setupPS (line 9)

Error in VoltageRamp>btnStart_Callback (line 422)

Error in gui_mainfcn (line 96)

Error in VoltageRamp (line 43)

Error in @(hObject,eventdata)VoltageRamp('btnStart_Callback',hObject,eventdata,guidata(hObject))

Error while evaluating uicontrol Callback

The code for setupPS looks like this:

function setupPS( ipAdd )
%SETUPPS Summary of this function goes here
%   addr = GPIB address of the supply

c=strsplit(num2str(ipAdd),'.');

hware=instrhwinfo;
if ~isempty(find(ismember(hware.SupportedInterfaces,'gpib')))
  hware=instrhwinfo('gpib');
end
if ~isempty(find(ismember(hware.InstalledAdaptors,'ni')))
  hware=instrhwinfo('gpib','ni');
end
...

That code continues, but error was at line 9 above

Now the only thing else that I find worth even mentioning is that I'm compiling this on a different computer than I'm attempting to run the *.exe on. However that shouldn't matter (afaik), both have exactly the same NI driver sets, both computers have exactly the same version of Java on them. I have not tried simply compiling setupPS to exe and running that, but that seemed a fruitless diagnostic path to me.

Any help would be greatly appreciated.

Answer 1

[Dasharath Gulvady]

The below bug report looks relevant to your issue:

http://www.mathworks.com/support/bugreports/search_results?utf8=%E2%9C%93&search_executed=1&keyword=1038097&release_filter=Exists+in&release=0&selected_products=&commit=Search