MATLAB: Java Static Libraries defined in javaclasspath.txt are not loaded in the parallel pool

Question

I have placed the file javaclasspath.txt file in my Matlab working folder. User\Documents\MATLAB\javaclasspath.txt

This loads the jar files correctly when the Matlab is started.

However when I start the parallel pool, it appears none of the static libraries defined in the txt are loaded.

I tested it as follows

p = gcp;
out = parfevalOnAll(p,@()javaclasspath('-static'),1);
out.fetchOutputs

Unfortunately I need to load these libraries statically as they do not work when they are loaded dynamically.

Hope some one is able to guide me to a solution 🙂

Answer 1

After some search on the forum. It seems that if javaclasspath.txt is located in the "preference directory" it will be loaded correctly.

I tested it out and seems to be working now.

https://www.mathworks.com/matlabcentral/answers/103763-why-does-the-contents-of-javaclasspath-txt-not-get-added-to-the-static-class-path-when-i-double-clic?s_tid=answers_rc1-1_p1_MLT