Error occured: when I try to use java to call the matlab jar on linux.

I wrote a matlab function and packaged it into a jar package through DEPLOYTOOL. I write java program on Windows, import the package and run it successfully. When I put the same jar package and Java program on Linux for execution, an error occurred:

Exception: com.mathworks.toolbox.javabuilder.MWException: An error occurred while initializing the component.

"Application not supported on Linux due to platform dependencies. Intended platforms include: Windows. For more information, please contact the application author."

Exception in thread "main" java.lang.NullPointerException

at com.gpr.demo.gprPredict.main(gprPredict. java:44 )

below is my java code:

package com.gpr.demo;

import com.mathworks.toolbox.javabuilder.*;

import demo_TrainTest.gplModel;

public class gprTrain {

public static void main(String[] args){

MWNumericArray mwa = null;

Object[] result = null;

gplModel dtrain = null;

try{

String filename = "F:/0326_temperature.txt";

String fileoutput = "gprmdl.mat";

dtrain = new gplModel();

dtrain.demoTrain(filename,fileoutput);

}

catch(Exception e){

System.out.println("Exception: " + e.toString());

}

finally{

MWArray.disposeArray(mwa);

MWArray.disposeArray(result);

dtrain.dispose();

}

}

}

Answer 1

[Shiva Kalyan Diwakaruni]

Hi,

The compiled applications are not cross-platform compatible (cannot go from Windows to Linux)

Inner-platform compatibility exists (can go from one supported Windows to another supported Windows)

JARs generated using Builder JA are generally platform independent, only if they do not use MEX files internally (as those are platform dependent)

Hope it helps.