an attempted compilation of the javadoc of OpenAPI 702 against the source nets the following:
cannot find org.jetbrains.annotations.NotNull
package org.jetbrains.annotations does not exist
and I am inclined to agree.
The only mention of this is in the import statements of the source classes, none of which cannot find them either. A Google search tuns up nothing useful, as does a search on forums and jetbrains site generally.
What am I missing here? Do these classes exist and should I have them as part of the OpenAPI download?