I know several 10x Java coders. Honestly though 10x should transcend a language...

Why would it? Suddenly having to always look up your standard library's basic functions will slow anyone down.

10x guys let the tools do the hard work, like IDE to look up standard library's basic functions.

Which language has standard library small enough that people can memorize the whole thing?

JavaScript :) Although I keep forgetting some functions even from JS.

What are the parameters for Date.setFullYear() again? :)

You can learn stuff like that pretty quick.

You are wrong. 10x guys care about product outcome rather than fretting languages. 10x guys certainly use Java in their toolset.

There's no need to turn this into an anti-(fill in the blank) thread.

At present time, Java8 is acceptable (wit lambdas, RxJava, etc.). But yes, you are right: Spring, Hibernate, JBoss, etc. are huge reason to quit.

My own web projects in java 15 years ago were coded in java and glued by JavaScript (Rhino) with templates in JavaScript, which were compiled into bytecode for speed: fast, secure, simple, 10x faster to code.

Yes, just think how many throwaway unicorn greenfield projects these Java developers didn't participate in because they absolutely have to insist on maintaining crufty decade old code bases that actually solve a tangible business problem instead of thinking software is an afterthought to a fluffy full page HTML5 marketing video about revolutionizing the world.

Please don't.

Java actually allows for 10x work because it's so simple and let's you work quickly.

My experience was that most Java apps have a terrible compilation and startup time. I hated working with Java because of this.