In the decades Java sources have been available, any of the kazillion junior programmers could debug-step into java.* and see exactly what's happening -- progressive disclosure at its finest for building expertise.
Most other languages have a hard boundary, so the roots of language are a matter of conceptual documentation and experience. Java also offers that fly-over knowledge, but when problems arise, programmers love knowing exactly and seeing directly.
Personally, in a pinch I prefer the actual to the elegant.
In the decades Java sources have been available, any of the kazillion junior programmers could debug-step into java.* and see exactly what's happening -- progressive disclosure at its finest for building expertise.
Most other languages have a hard boundary, so the roots of language are a matter of conceptual documentation and experience. Java also offers that fly-over knowledge, but when problems arise, programmers love knowing exactly and seeing directly.
Personally, in a pinch I prefer the actual to the elegant.