nipafx

Setup:

0. have SDKMAN installed
1. copy the content of JdkUpdate.java into a file jdk_update
2. make it executable with chmod +x jdk_update
3. either add it to the path or execute from within that directory

Features / how-to:

• a command like jdk_update 24.0.2-open:

nipafx

// based on https://github.com/Ocean-Moist/FizzBuzz/blob/master/src/Main.java
// from https://rohan.ga/blog/java/

// run on JDK 23 with `java --enable-preview FizzBuzz.java`
void main() {
	var testers = List.of(
		new Tester(x -> x % 3 == 0, "Fizz"),
		new Tester(x -> x % 5 == 0, "Buzz"));
	IntStream
		.rangeClosed(1, 100)

nipafx

[alias]
	st = status --branch --short
	look = log --graph --pretty='%C(red)%h%Creset %C(green)%ad%Creset %C(yellow)%<(15,trunc)%an%Creset %s %C(bold blue)%D%Creset' --date=format-local:'%d.%m.%Y %H%M'
	look-close = log --graph --pretty='%C(red)%h%Creset %C(green)%cd%Creset %C(yellow)%<(15)%cn%Creset %C(bold blue)%D%Creset%n        %C(dim green)%ad%Creset %C(dim yellow)%<(15)%an%Creset %s' --date=format-local:'%d.%m. %H%M'
	hist = log --pretty='%C(red)%h%Creset %C(green)%cd%Creset %C(yellow)%<(12,trunc)%an%Creset %s %C(auto)%D%Creset' --date=format-local:'%Y-%m-%d %H:%M'
	wat = !git look -15
	cd = checkout
	patch = -c interactive.diffFilter='diff-highlight | less -FRX --tabs=4' add --patch
	unstage = reset HEAD --
	unstage-patch = reset HEAD --patch

nipafx

// Two examples [1, 2] from EA Async written without async/await or
// (Completable)Futures as straight-forward blocking code. If the
// callers want to do something concurrently to `Store::buyItem`,
// they just put that call into a new virtual threads.

public class Store {

	private final Bank bank = new Bank();
	private final Inventory inventory = new Inventory();

nipafx

import java.util.concurrent.atomic.AtomicLong;
import java.util.stream.Stream;

// implementation of https://twitter.com/peterzllr/status/1413216826708877318

public class Tree {

	public static void main(String[] args) {
		var tree = new Red(
				new Black(

nipafx

#1 Split "one", "two" across two lines

Goal:

one\n
two

Onboard JavaScript requires us to break the code formatting.

nipafx

package org.codefx.lab;

import java.util.Collection;
import java.util.List;
import java.util.Optional;
import java.util.function.Function;
import java.util.function.UnaryOperator;
import java.util.stream.Stream;

class Lab {

nipafx

<!-- executed during build -->
<plugin>
	<artifactId>maven-dependency-plugin</artifactId>
	<version><!-- currently 3.1.2 --></version>
	<executions>
		<execution>
			<!-- with this ID, the command above picks up the config -->
			<id>default-cli</id>
			<!-- if `process-sources` doesn't match your needs -->
			<phase>package</phase>

nipafx

Maturity Model

Libraries, frameworks, and tools (IDEs, build tools) have widely varying support for the JPMS. I would like to create a model that makes it easy to judge a project for what it can and can't (yet) do - both for users and maintainers.

Conditions can usually be split into those for libraries/frameworks and those for tools, but that's not clear cut. Bytecode analysis tools, for example, may fall into both categories. So always look at both categories, and check which conditions apply to a given project.

This is work in progress - feedback welcome!

Level 0 - Denial: Don't break!

nipafx

@SeleniumGridConfiguration(url = "http://0.0.0.0:4444")
class GridDemoTest {

    @SeleniumGridTest
    fun demo(driver: WebDriver) {
        driver.get("https://blog.codefx.org")
        val homeUrl = driver.findElement(By.className("img-hyperlink")).getAttribute("href")
        assertThat(homeUrl).contains("blog.codefx.org")
    }