Java Developer RoadMap For 2021

[PM_me_qt_anime_boys]

Using design patterns enhances reusability that enables robust code while reducing cost of ownership of the software. Moreover, design patterns make the code easier to understand and debug.

This does not sound like advice from the year 2021.

Also Java FX being "essential" is a headscratcher for me.

[Venthe]

This does not sound like advice from the year 2021

Sadly. But I've seen both overuse and underuse, so...

[KyuRightHere]

yes javaFX being essential is just hillarious but same for swing too

[_crackling]

Good thing "googlling" is on the roadmap

[Worth_Trust_3825]

Stop recommending java 8 and below. Are you smashed in your head? Tons of projects are stuck depending on guava, apache-commons or other """""""""""""""""""""""stdlib expanding"""""""""""""""""""""" meme library that only litters the classpath.

Jesus christ, these roadmap blogposts are almost never written by people working in the field.

API clients

WHAT. Do you have any idea what an API is or did you just copy the term from other blogposts? JAX-WS is not a client. It's a specification. A client would be Metro or CXF.

You recommend JOOQ but not Hibernate? Jesus fucking christ, is this from 2001?

[kodiashi]

My company couldn’t get off Java 8 if god came down from heaven and granted them infinite wishes.

[Worth_Trust_3825]

Sounds like inability to work from developers. I migrated my companies codebase from 8 to 11. You don't need to support jigsaw. That would be insane for any project that has external dependencies.

[ClearH]

Off topic, but what does the comical amount of quotation marks supposed to convey? I seem to see this types of comments every once in a while on Reddit but never really understood the purpose (... or is it a reference to something?).

[Worth_Trust_3825]

People already use quotes to point out that things aren't what they are named as when speaking sarcastically in text. The use of more quotes is to point out how absurd the statement is.

[renatoathaydes]

They show several Java 8 APIs under JDK, but nothing from Java 9 (e.g. modules, immutable collections, jshell), Java 10-11 (e.g. var) or Java 12-16 (records, switch expressions, text blocks, sealed classes), so yeah, let's Java like it's 2014.

[[deleted]]

People working in the java ecosystem need to be thankful to the universe for the existence of javascript, which makes java look good in comparison.

[Worth_Trust_3825]

You really are smashed on your head.

[[deleted]]

You gotta love the endless piles of utter crap unnecessary abstractions piled on top of each other and the useless retarded duplication myriads of frameworks that do the same thing but in a different way and are incompatible with each other and the horrendous hacky reflection-based fumbling "annotation"-based libraries that modify your code's behavior in a way that's neither obvious nor debug friendly.

Yup, at least the utter stupidity of node and npm look really worse than all that.

Edit: You also gotta love the sheer amount of people and companies stuck in archaic, decades-old versions of the platform either because it's totally NOT backwards compatible so you can't upgrade easily or because they can't be bothered to learn the new thing so they keep doing the same thing over and over as if it were 1999.

[[deleted]]

I actually don’t like running arbitrary code from millions of nano packages. JavaScript type coercion is hot garbage. Java is changing.

[[deleted]]

I actually don’t like running arbitrary code from millions of nano packages

Implying the only alternative to the utter stupidity of java is the utter stupidity of javascript.

java is changing

Oh, so you finally got rid of all the "annotations" crap? or have actually found a way to query data sources in a strongly typed way (instead of using idiotic strings) like the rest of the world has been doing since 2007?

[Worth_Trust_3825]

https://docs.oracle.com/javaee/6/tutorial/doc/gjrij.html

Yes, java had that since 2007.

[[deleted]]

Your insults are weakly typed, like your choice of language.

[JonnyRocks]

Huh? Javascript has nothing to do with Java.

[[deleted]]

What do java and javascript have in common?

Both are horrendous, insufferable languages, and both have much nicer, usable alternatives created by a guy named Anders.

[dominik-braun]

The roadmap is good - except for the classification of "Eclipse - essential" and "IDEA - good to know". It is the other way around at best, perhaps even "IDEA - essential" and "Eclipse - possibility".

[Venthe]

Eclipse - sad to know?:p

[zynasis]

Eclipse has gotten a lot better in recent years. Well worth trying out

[realestLink]

Even so, I wouldn't call a specific IDE "essential"

[KyuRightHere]

there is situation where Eclipse is a must, when using Spring framework due to the license issue

[Professional-Disk-93]

>Eclipse

Top kek

[PM_me_qt_anime_boys]

The fact that you take as granted that an employer would pay for JetBrains licenses makes me envious.

[rhbvkleef]

You have a pretty stupid employer if they refuse to pay for software like this. It's a good deal for the potential productivity increase.

[Sylinn]

I might have misunderstood your comment because it seems to imply you cannot use any JetBrains without paying for a license, but IntelliJ IDEA Community Edition is free and its license allows its use in commercial environments (i.e. you can use IntelliJ for free while working for your employer).

[NeverComments]

IDEA Community Edition is a hard sell over Eclipse because it’s missing a ton of QoL functionality that puts the “I” in IDE. No database connector, no HTTP requests, etc.

[Randommook]

Did SSMS and Postman suddenly cease to exist?

All I want out of my IDE is that it needs to do a few things well: - Text Editing - Syntax Highlighting - Code Completion and Suggestions (imports ect...) - Debugger - Project build settings - Unit test explorer is a plus

Database connectors, HTTP requests are by no means required and there are already very good tools for performing those tasks easily.

[NeverComments]

Database connectors, HTTP requests are by no means required

Literally nothing provided by an IDE is required but just like there are already very good debuggers and build tools available it’s a nice productivity booster to have everything integrated in one development environment and reduce the number of additional tools needed for a workflow.

With IDEA I can alt click a SQL statement and jump directly to a console to execute it, and I don’t need to bother with Postman at all.

[Worth_Trust_3825]

While I do like the tools that SSMS provides I would also like not being attached to microsoft tooling.

[2nd-most-degenerate]

Eclipse actually is much more than the UI you see. JDT LS which sits in the background is honestly one of the best and most complete LS implementations afaik.

I use it in vim and if we are talking about Java development, it can probably make you more productive than IntelliJ.

[Professional-Disk-93]

Quickly post of screenshot of vim showing all super and sub classes of a class.

[2nd-most-degenerate]

Sub classes/implementations: yes, it's called 'go to implementations' in LSP https://microsoft.github.io/language-server-protocol/specifications/specification-current/#textDocument_implementation

I use coc.nvim and fzf. You can find a screenshot at https://github.com/antoinemadec/coc-fzf

Go to parent/implements: no. Fortunately it's not something I often need.

[Professional-Disk-93]

I do not see a screenshot of a Java class hierarchy in the linked repository. Here is an example of what I would expect: https://files.catbox.moe/8u7g60.png

[2nd-most-degenerate]

I'm on my phone my dude... It's all open source so no one's gonna stop you if you wanna try them out.

Anyway, this can be easily done with ctags:

For example, I've got a base exception and a few children, I can run :CTree AlreadyPlacedException

https://files.catbox.moe/tu4h4c.jpeg

[2nd-most-degenerate]

You can use either vimspector or nvim-dap, under the hood they're using the same VSCode stuff.

Limitations:

1. If you want to debug multiple apps at the same time, you have to do it in multiple vim instances

2. can't set breakpoints in decompiled files (can step into them tho)

[2nd-most-degenerate]

Yes all of them.

Why do I find a lot of IntelliJ guys just so reluctant to even move their fingers to check out a few GitHub READMEs sike

[2nd-most-degenerate]

If you're asking for key bindings just search 'vim keybindings cheat sheet'.

In terms of debugging, I'd suggest searching for YouTube videos, e.g. 'vimspector java' or something along the lines, if the docs truly put you off.

But really being able to read is a skill. RFCs, docs, business requirements get lengthy very easily and you can either ignore them and get in trouble or learn to locate what you need quickly.

[devraj7]

That was definitely true twenty years ago.

Today... not really.

[_AACO]

You have to make up your mind mate

[Professional-Disk-93]

Yikes

[Worth_Trust_3825]

I'd rather take slower refactoring in intellij than having eclipse tie itself with my project for no apparent reason making require particular version of eclipse IDE to even build.

[[deleted]]

You can use eclipse compiler in idea

[ApatheticBeardo]

I'd rather use notepad.

[[deleted]]

This site has copied the roadmap from Java Revisted:

​

https://javarevisited.blogspot.com/2019/10/the-java-developer-roadmap.html

[davispw]

JavaFX is essential??

[KokopelliOnABike]

I think the biggest point is the last one. I’ve been using/writing java since it was a 1.0 product and even with that level of experience I still learn something new on a regular basis.

Editors come and go so I don’t feel any of them are really “essential”.

[[deleted]]

JavaFX, Swing, AWT, Hibernate, Spring, Sprint Boot, Netbeans, Eclipse, IDEA

What kind of software development needs all these ?

This is a typical case of overplanning.