javac -classpath "C:\Program Files\MATLAB\R2023a\toolbox\javabuilder\jar\javabuilder.jar";.\JavaTestCall.jar javaTest_CallSample.java java -classpath .;"C:\Program ...
%so I open an Anaconda prompt, start MATLAB with the command %"matlab", and then all my installed Python libraries and modules, even %ones from JPL, work. %Note that MATLAB 2021b works with Python 3.9 ...