You should place the external JARs in the user lib folder of your project.
Please find the screenshot for your reference
Then deploy the project in eclipse. It will never vanish again
I hope this helps you
You needs to add jar files in build path using add external jar button so
1)Go to Maven Repository: Search/Browse/Explore (mvnrepository.com).
2)download the corresponding jar file.
3)copy the jar file to your Mendix project /userlib folder.
Or Try with above Javith Answer. I think both should work.
Hi, First delete the project from eclipse. Add the jar file in userlib folder. Then synchronize the changes via modeler. Deploy the project in eclipse again.
The naming of the .jar file suggests it is for Java 16 which is not compatible with Mendix. Mendix uses Java 11 so have a look to see if there is a version of the .jar file for that version of Java.
Hope this helps.