Since the WrappedObjectArray class is guarded and only available when testing is turned on, the meta examples which explicitly import that class will not compile (java, cpp).
If variable storing is turned off in meta example generator.py (storeVars or so), then the includes for WrappedObjectArray also have to be omitted.
Nice non trivial entrance task and crucial for any further release
For now, the workaround is to compile Shogun with the cmake siwtch -DENABLE_TESTING
Yes this workaround worked for cpp interface.
Just by compiling using cmake switch -DJavaModular=ON -DENABLE_TESTING=ON ..