Why does Java use bytecode for cross-platform?

Question

Java

To transfer to a new platform, you need to write a virtual machine for this platform, but what's the problem in making a compiler for the new platform (for compiled languages) that will provide the same cross-platform?

Answer 1

How is creating a JVM for specific platforms "better", "simpler", "more advanced", "more correct" than writing compilers for the same platforms?

Answer 2

debugging one virtual machine is easier than debugging a bunch of compiled software.
although there is also JIT compilation / optimization of Java code for a specific platform.