Compiling Java Client Application

Hi all,

I am trying to follow the example listed here and I am trying to compile the java file using javac. Following the example, I am running

javac -classpath "matlabroot\toolbox\compiler_sdk\mps_clients\java\mps_client.jar" MPSClientExample.java

where matlabroot is the Matlab installed folder.

I am having the following error message, that suggests I am not linking the classpath properly. I am sure the path to the mps_client.jar is correct and that the file is the folder, but I don't know how to fix the error. Any idea?

Thank you in advance.

MPSClientExample.java:3: error: package com.mathworks.mps.client does not exist
import com.mathworks.mps.client.MWClient;
                               ^
MPSClientExample.java:4: error: package com.mathworks.mps.client does not exist
import com.mathworks.mps.client.MWHttpClient;
                               ^
MPSClientExample.java:5: error: package com.mathworks.mps.client does not exist
import com.mathworks.mps.client.MATLABException;
                               ^
MPSClientExample.java:10: error: cannot find symbol
         throws MATLABException, IOException;
                ^
  symbol:   class MATLABException
  location: interface MATLABAddMatrix
MPSClientExample.java:20: error: cannot find symbol
        MWClient client = new MWHttpClient();
        ^
  symbol:   class MWClient
  location: class MPSClientExample
MPSClientExample.java:20: error: cannot find symbol
        MWClient client = new MWHttpClient();
                              ^
  symbol:   class MWHttpClient
  location: class MPSClientExample
MPSClientExample.java:31: error: cannot find symbol
        }catch(MATLABException ex){
               ^
  symbol:   class MATLABException
  location: class MPSClientExample
7 errors

[Kojiro Saito]

mps_client.jar seems to be not included properly. What is an exact javac command? What full path of matlabroot?

[Magda Guglielmo]

Hi Kojiro,

thanks for the reply the exact javac command (with the full path to matlabroot) is

javac  -classpath "C:\Program Files\MATLAB\R2018B\toolbox\compiler_sdk\mps_clients\java\mps_client.jar" MPSClientExample.java

Thanks again for your help

Magda

[Kojiro Saito]

What is your JDK version? You can find your JDK version from Commamd Prompt.

java -version

[Magda Guglielmo]

Hi Kojiro,

Thank you for your time. The Matlab java (in Matlab Command prompt) is

Java 1.8.0_152-b16 with Oracle Corporation Java HotSpot(TM) 64-Bit Server VM mixed mode

while from Command Propt

openjdk version "1.8.0_232"
OpenJDK Runtime Environment (AdoptOpenJDK)(build 1.8.0_232-b09)
OpenJDK 64-Bit Server VM (AdoptOpenJDK)(build 25.232-b09, mixed mode)