Android Question SDK-Manager: Warnings after installation

[Pflichtfeld]

Hi, am Newbie here, programmed for years in VB(net). Installed b4a, set paths, opended sdk-manager, installed recommended files.
It ended with:

WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/C:/Android-SDK/tools/bin/jaxb-impl-2.1.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Warning: File C:\Users\PU\.android\repositories.cfg could not be loaded.

Is there something, I have to do/repair now?
Complete output in attachment.

 

[Erel]

Note that you don't need to run the sdk manager at all. The resources in the package include everything you need.

Ignore these warnings, they always appear.