Java 17 Linux _top_ Info

# List all installed Java versions sudo update-alternatives --config java echo "export JAVA_HOME=/usr/lib/jvm/java-17-openjdk-amd64" | sudo tee -a /etc/environment source /etc/environment

[Install] WantedBy=multi-user.target

java -XX:ActiveProcessorCount=2 -jar myapp.jar For large heaps (>8GB), tell the JVM to use Linux's THP: java 17 linux

| Distribution | Best For | Package Manager Availability | | :--- | :--- | :--- | | | General purpose, cloud-native, CI/CD | apt , yum , dnf (via Adoptium repo) | | Oracle OpenJDK | Oracle Linux & strict Oracle support contracts | yum (Oracle Linux) | | Amazon Corretto 17 | AWS environments, long-term free patches | yum , apt , dnf | | Azul Zulu 17 | Legacy hardware or embedded Linux | apt , yum , tgz | Recommendation: For 95% of users, use Eclipse Adoptium (Temurin) or Amazon Corretto . Both offer free, long-term support without licensing headaches. Step 2: Installing Java 17 on Major Linux Distributions Ubuntu / Debian (apt) # Update package list sudo apt update Install the default Java 17 JDK (OpenJDK) sudo apt install openjdk-17-jdk -y Verify installation java -version # List all installed Java versions sudo update-alternatives