Java is a Stable Language for many years.

1. There is nothing that Java Do not have and any other language have.
2. If you think Java doesn't have this, means you don't know.
3. And if Java doesn't have something it must be a reason. For example Java doesn't have pointers doesn't mean it is bad than C++, It has a reason, you do not need it in Java.
4. First understand how JDK,JRE, and JVM works. Java is not just a syntax that you can compare.
5. No matter what anyone say WORA, WORE, Security, In-bult features of JVM, combination of being Compiled, Interpreted, and JITC these are unmatched to any programming language.
6. In java now, if you know how to work you do not have to even write the code much there are tools for everything. (Where in Python or any language you have to write the code, you cannot just generate pre written logic like in java. So Java might have 6000 line but among them only 50 lines were manually written but in Python you have to write all the 6000 line, I personally wont like it all, Why i am unnecessary write the code to save the data in Database every time, if my code can do it on its own in 10 lines using generating pre-written logic?)

I will answer all the other question as it will come as an comments.