Update install documentation for java/mysql

docs/_docs/guides/002-install_springboot3.md

@@ -9,13 +9,13 @@ permalink: /docs/guides/install-springboot3/
 
 No binaries are available for the `Spring Boot 3` at the moment. It should be built from the `master` branch.
 
-Assuming `Java 17` is installed, `./mvnw install -DskipTests` should be enough to build the `jar` files.
+Assuming `Java 21` is installed, `./mvnw install -DskipTests` should be enough to build the `jar` files.
 
 For detail instructions on development environment setup, [see here]({{ site.url }}/docs/guides/open-source-contributors/). 
 
 ### Using Executable Jars
 
-`Java 17` is required.
+`Java 21` is required.
 
 Run the Webapp with:
 
@@ -78,8 +78,8 @@ The port can be changed with the `server.port` property.
 
 ### MySQL
 
-[Install MySQL 5.7](http://dev.mysql.com/doc/refman/5.7/en/installing.html) and then create a database for {{ site.mojito_green }} 
-(with Brew: `brew install mysql@5.7`). 
+[Install MySQL 8](https://dev.mysql.com/doc/mysql-installation-excerpt/8.0/en/) and then create a database for {{ site.mojito_green }} 
+(with Brew: `brew install mysql@8`). 
 
 Connect to MySQL DB as root user
 

docs/_docs/guides/open-source-contributors.md

@@ -32,13 +32,13 @@ Ensure that you have added the `cask-versions` [tap](https://github.com/Homebrew
 brew tap homebrew/cask-versions
 ```
 
-Install `java 17` from `Temurin`:
+Install `java 21` from `Temurin`:
 
 ```sh
 brew install --cask temurin17
 ```
 
-Check that `java 17` is now in use with `java -version`. If you need multiple versions of `java` consider using 
+Check that `java 21` is now in use with `java -version`. If you need multiple versions of `java` consider using 
 something like `jenv` (don't forget the plugins: `jenv enable-plugin maven` & `jenv enable-plugin export` ) or `sdkman`.
 
 Install `maven` (latest version should be fine):
@@ -58,13 +58,13 @@ Note, to install the exact same `maven` version as the wrapper: `brew install ma
 
 ### Install on Unbutu 18.4 LTS
 
-Install `java 17` from `OpenJDK`:
+Install `java 21` from `OpenJDK`:
 
 ```sh
-sudo apt-get install openjdk-17-jdk
+sudo apt-get install openjdk-21-jdk
 ```
-Check that `java 17` is now in use with `java -version`. If not you, can set it as default with 
-`sudo update-java-alternatives -s /usr/lib/jvm/java-1.17.0-openjdk-amd64` (To check the list
+Check that `java 21` is now in use with `java -version`. If not you, can set it as default with 
+`sudo update-java-alternatives -s /usr/lib/jvm/java-1.21.0-openjdk-amd64` (To check the list
 `sudo update-java-alternatives -l`). If you need multiple versions of `java` 
 consider using something like `jenv` or `sdkman`.
 
@@ -140,8 +140,8 @@ Run the following commands to create the databases. Change the user name, databa
 CREATE USER 'mojito'@'localhost' IDENTIFIED BY 'mojito';
 CREATE DATABASE IF NOT EXISTS mojito CHARACTER SET 'utf8mb4' COLLATE 'utf8mb4_bin';
 CREATE DATABASE IF NOT EXISTS mojito_dev CHARACTER SET 'utf8mb4' COLLATE 'utf8mb4_bin';
-GRANT ALL ON mojito.* TO 'mojito'@'localhost' IDENTIFIED BY 'mojito';
-GRANT ALL ON mojito_dev.* TO 'mojito'@'localhost' IDENTIFIED BY 'mojito';
+GRANT ALL PRIVILEGES ON mojito.* TO 'mojito'@'localhost';
+GRANT ALL PRIVILEGES ON mojito_dev.* TO 'mojito'@'localhost';
 FLUSH PRIVILEGES;
 ```