= OpenJDK21 =

== Install from Adoptium ==
 * https://adoptium.net/temurin/releases
 * https://github.com/adoptium/temurin21-binaries/releases/tag/jdk-21.0.7%2B6

{{{#!highlight sh
cd ~
wget https://github.com/adoptium/temurin21-binaries/releases/download/jdk-21.0.7%2B6/OpenJDK21U-jdk_x64_linux_hotspot_21.0.7_6.tar.gz
tar tvzf OpenJDK21U-jdk_x64_linux_hotspot_21.0.7_6.tar.gz 
tar xvzf OpenJDK21U-jdk_x64_linux_hotspot_21.0.7_6.tar.gz 
nano ~/.bashrc
JAVA_HOME=/home/vitor/jdk-21.0.7+6/
MAVEN_HOME=/home/vitor/apache-maven-3.8.6/
PATH=$JAVA_HOME/bin/:$PATH:$MAVEN_HOME/bin/
# reload bashrc
# . ~/bashrc 
}}}

== Records ==
 * https://openjdk.org/jeps/395
Introduced in release 16. 

To model data as data. Easy and concise manner to declare data-carrier classes that by default make their data immutable. Can be described as nominal tuples.

{{{#!highlight java
  record Point(int x, int y) { }
}}}