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How To Install Different JDK Versions on MacOS with Homebrew

Keywords: Java, JDK (Java Development Kit), MacOS, Homebrew, Specific Version

This how-to guide covers how to install different versions of the JDK on MacOS with Homebrew.

Table of Contents

• Preface
• This Guide Favors OpenJDK

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Test Ruby TCPSocket.open against elasticloadbalancing.us-west-2.amazonaws.com:443

We are poking around and looking for the following "cannot allocate memory" error message:

Failed to open TCP connection to elasticloadbalancing.us-west-2.amazonaws.com:443 (Cannot allocate memory - connect(2) for \"elasticloadbalancing.us-west-2.amazonaws.com\" port 443)

Target testing Ruby 3.2's TCPSocket.open call here: https://github.com/ruby/net-http/blob/v0.3.2/lib/net/http.rb#L1271-L1273. (Ruby TCPSocket implementation: https://github.com/ruby/ruby/blob/master/ext/socket/tcpsocket.c)

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commonName,scientificName,native,phenology,url
A Moth,Abagrotis apposita,Native,Year-round,https://idfg.idaho.gov/species/taxa/1474133
A Moth,Abagrotis brunneipennis,Native,Year-round,https://idfg.idaho.gov/species/taxa/25522
A Moth,Abagrotis discoidalis,Native,Year-round,https://idfg.idaho.gov/species/taxa/1474134
A Moth,Abagrotis dodi,Native,Year-round,https://idfg.idaho.gov/species/taxa/1474135
A Moth,Abagrotis duanca,Native,Year-round,https://idfg.idaho.gov/species/taxa/26322
A Moth,Abagrotis erratica,Native,Year-round,https://idfg.idaho.gov/species/taxa/1474136
A Moth,Abagrotis forbesi,Native,Year-round,https://idfg.idaho.gov/species/taxa/1474137
A Moth,Abagrotis glenni,Native,Year-round,https://idfg.idaho.gov/species/taxa/1474138
A Moth,Abagrotis hermina,Native,Year-round,https://idfg.idaho.gov/species/taxa/1474139

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FROM node:16.18

RUN git clone --single-branch https://github.com/skidding/jobs-done.git /jobsdone 
WORKDIR /jobsdone

COPY data.js data.js
RUN yarn install \
    && yarn build \
    && yarn global add http-server

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#!/usr/bin/env node

/**
 * @file Generate a deterministic name from a commit's short hash.
 * Inspired by Docker 0.7.x which generates names from notable scientists and hackers.
 */

const adjectives = [
  'admiring',
  'adoring',

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Environment variables can be loaded from a properties file in bash

testenv.properties

foo=alpha
bar=beta

This will work because input redirection happens in the current shell.

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#!/usr/bin/env bash
# Configure by exporting TODOPROJECT_FILE, the file path to write to.
# Recommended: alias tp="path/to/todoproject.sh"

todoproject_file="${TODOPROJECT_FILE:-$HOME/todoproject.tsv}"

function initFile {
    if [[ -f "${todoproject_file}" ]]; then return 0; fi
    mkdir -p "$(dirname "${todoproject_file}")"
    printf "Timestamp of Thought\tProject\n" > "${todoproject_file}"

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import io.github.bonigarcia.wdm.WebDriverManager;
import java.io.IOException;
import java.util.Map;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.chrome.ChromeDriver;
import org.openqa.selenium.chrome.ChromeOptions;
import org.openqa.selenium.firefox.FirefoxDriver;
import org.openqa.selenium.firefox.FirefoxOptions;

/*

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import { spawnSync } from 'child_process'
import { readFileSync } from 'fs'
import { temporaryWriteSync } from 'tempy'

// Get the default editor
const editor = process.env['VISUAL'] || process.env['EDITOR'] || 'vi'

console.log(`Opening in EDITOR: ${editor}. Save and quit the editor process to continue.`)

// If within another interactive program, uncomment this to prevent wacky visuals

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let newelement = document.createElement('h1')
newelement.textContent = 'MODIFIED'
document.getElementsByTagName('h1')[0].append(newelement)