First you need to run charles and enable SSL proxying. The see which JDK is used by your application and add the certificate to the cacerts file:
curl -s http://ssl.charles/ --proxy 127.0.0.1:8888 > cert_file sudo keytool -import -noprompt -alias charles-$(date +%Y%m%d%H%M%S) \ -file cert_file \ -keystore /Library/Java/JavaVirtualMachines/jdk-10.0.2.jdk/Contents/Home/lib/security/cacerts \ -storepass changeit rm cert_file