What technologies are important with java?

What technologies are important to get a job as a java programmer

spring, apache tomcat, hadoop, jsf, jsp, servlets, maven, etc... or anything i left out
Would appreciate some opinions. There are so many technologies of Java, I want to know which one is perfect to get a job?
HELP!

I didn't find the right solution from the internet.
References:

https://www.java-forums.org/new-java/97346-what-technologies-important-java.html

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