I wouldn't say the JVM (Java Virtual Machine) is a particular weakness for Java. If Java has a weakness it'd probably be related to OS or hardware integration--it is a bit detached from the lower level access that C++ has. Although, modern libs have significantly mitigated that detachment.
For non-professional game development this isn't really a factor IMO.

In fact I think Java is a better candidate (than C++) for a casual development team. I used C++ for years, but throwing away the productivity Java brings to the table just because "games are supposed to be done in C++" is just asking to make things more difficult for yourself, unless you have a large team and quite a bit of money & time.
I'd have to have a very good reason to use C++ over Java. Game dev used to be one of those, but not anymore.

I wouldn't say the JVM (Java Virtual Machine) is a particular weakness for Java. If Java has a weakness it'd probably be related to OS or hardware integration--it is a bit detached from the lower level access that C++ has. Although, modern libs have significantly mitigated that detachment.
But for non-professional game development this isn't really a factor IMO.

In fact I think Java is a better candidate (than C++) for a casual development team. I used C++ for years, but throwing away the productivity Java brings to the table just because "games are supposed to be done in C++" is just asking to make things more difficult for yourself, unless you have a large team and quite a bit of money & time.
I'd have to have a very good reason to use C++ over Java. Game dev used to be one of those, but not anymore.