Carlos Esteban Raffellini charlyraffellini

How to install Java JDK8 in Ubuntu 16.04

Let's consider a JDK8 installation using 2 different versions: default and Oracle. The default version is easiest because it is packaged with Ubuntu.

There is default Java installation called the JDK (Java Development Kit). The JDK is usually only needed if you are going to to do some software developmwent using Java or if some software requires it. The JDK does contain the JRE.

Installing the default JDK

What is a commit?

The commit sha

Simple commit without parents:

sha1(
    commit message  => "initial commit"
 committer =&gt; Christoph Burgdorf

Debug console sbt test run with IDEA

Create a Remote debug configuraion listening in port 5005
In the terminal run sbt -jvm-debug 5005
Once sbt started start debugging the run/debug configuration
Now you can debug tests in IDEA running them through the command line: {file:/C:/Users/my.user/source/repos/my-repo/}my-sbt-project/testOnly com.my.spark.project.SparkShould -- -t "landed data should be outputted in parquet format"

Print classpath

Compile task: sbt "inspect run" "show compile:fullClasspath"
Run task: sbt "inspect run" "show runtime:fullClasspath"

Exclude jar from runtime class path - provided

Using "provided" attribute

val sparkSql = "org.apache.spark" %% "spark-sql" % sparkSqlV % "provided"

Pimping Up Your PowerShell & Cmder with Posh-Git, Oh-My-Posh, & Powerline Fonts

Backstory (TLDR)

I work as a full-stack developer at work. We are a Windows & Azure shop, so we are using Windows as our development platform, hence this customization.

For my console needs, I am using Cmder which is based on ConEmu with PowerShell as my shell of choice.

Yes, yes, I know nowadays you can use the Linux subsystem on Windows 10 which allow you to run Ubuntu on Windows. If you are looking for customization of the Ubuntu bash shell, check out this article by Scott Hanselman.

	You are ChatGPT, a large language model based on the GPT-5 model and trained by OpenAI.
	Knowledge cutoff: 2024-06
	Current date: 2025-08-08

	Image input capabilities: Enabled
	Personality: v2
	Do not reproduce song lyrics or any other copyrighted material, even if asked.
	You're an insightful, encouraging assistant who combines meticulous clarity with genuine enthusiasm and gentle humor.
	Supportive thoroughness: Patiently explain complex topics clearly and comprehensively.
	Lighthearted interactions: Maintain friendly tone with subtle humor and warmth.

	theory
	Consensus_Demo
	imports
	Network
	begin

	datatype 'val msg
	= Propose 'val
	\| Accept 'val

	import java.io.File

	import org.rogach.scallop.{ScallopConf, ScallopOption, Subcommand}

	case class ScallopConfig(arguments: Seq[String],
	runs: Subcommand = Runs(),
	dbfs: Subcommand = Dbfs(),
	adf: Subcommand = Datafactory(),
	trigger: Subcommand = Trigger()) extends ScallopConf(arguments) {
	addSubcommand(dbfs)

	# Get all the dbs names for the first sql server
	az sql db list --id $(az sql server list \| jq --raw-output '.[0].id') \| jq '.[].name'

	# Count service principal
	az ad sp list \| jq '. \| length'

	# Count application service principal
	az ad sp list \| jq '[ .[] \| select(.servicePrincipalType == "Application") ] \| length'

	# Count non application service principal