That's my contender for both biggest pro, and biggest con, of Java. Because where it breaks down is where the implementations are not clear, the tradeoffs are n

That's my contender for both biggest pro, and biggest con, of Java. Because where it breaks down is where the implementations are not clear, the tradeoffs are not clear, and the interfaces are not abstract enough to switch between (for instance, this useful library gives you a Future, and this other one requires a CompletableFuture).