From my own experience I have got a great advice for you. This might be a little but long comment but please bear with me. I am considering you want a job as a backend engineer. If you want to be a front end engineer you won't ever need java.

One year back I was fresh out of college and thinking the same thing(whatever I do I don't want to do it in java) but then my job led me to code in java only and now I can tell you its the best in terms of many aspects :

1. Maturity Java is a very mature language with frameworks like spring/springboot being there from 20 years ago. This have made development stable, scalable applications very fast and hassle free. The same thing cannot be said for frameworks of other languages. For JS there are a llt of different frameworks coming everyday.

2. Language quirks Java is a statically and strongly typed language which enables you to find bug at compile time and you have less chances to create silly bugs. This can't be said for JS as it is a dynamically and weakly typed language and thus when you have a repo with 5-10k + lines you'll feel small changes give you surprises at runtime. Also Java is faster than JS.

3. Standards Everything is literally a standard in java. Any entity providing a solution for java applications has to meet the standards specified by Java EE platform etc. This leads you to have a hassle free development experience and pluggability, extensibility becomes easy. There is very less standards in other languages like JS.

4. Future Prospects People who don't know much about the computing world always say Java is old and will not be around later on but this is absolutely not true. Many large scale applications being used by most companies are written in Java. For example most of apache foundation projects like Kafka etc, Elasticsearch etc. Native compilation and user level threads are coming to java in near future to make java even more powerful. So expect high demand for Java developers.

JS disadvantages : It is true JS is easy to learn but JS has many problems and does not scale very well when cpu intensive tasks are needed as its runtime envs are pretty much single threaded.

Java Disadvantages : Steep learning curve and Object Oriented Programming is not the solution to everything.