opensource@opensource-OptiPlex-3010:~$ sudo add-apt-repository ppa:linuxuprising/java
[sudo] password for opensource:
 Oracle Java 11 (LTS) and 15 installer for Ubuntu (20.10, 20.04, 19.10, 18.04, 16.04 and 14.04), Linux Mint and Debian.

Java binaries are not hosted in this PPA due to licensing. The packages in this PPA download and install Oracle Java, so a working Internet connection is required.

The packages in this PPA are based on the WebUpd8 Oracle Java PPA packages: https://launchpad.net/~webupd8team/+archive/ubuntu/java

Created for users of https://www.linuxuprising.com/

Installation instructions (with some tips), feedback, suggestions, bug reports etc.:

Oracle Java 11: https://www.linuxuprising.com/2019/06/new-oracle-java-11-installer-for-ubuntu.html
Oracle Java 15: https://www.linuxuprising.com/2020/09/how-to-install-oracle-java-15-on-ubuntu.html

Important notice regarding Oracle Java 11 and newer: the Oracle JDK license has changed starting April 16, 2019. The new license permits certain uses, such as personal use and development use, at no cost -- but other uses authorized under prior Oracle JDK licenses may no longer be available. A FAQ is available here: https://www.oracle.com/technetwork/java/javase/overview/oracle-jdk-faqs.html . After this change, new Oracle Java 11 releases (11.0.3 and newer) require signing in using an Oracle account to download the binaries. This PPA has a new installer that requires the user to download the Oracle JDK 11 .tar.gz and place it in a folder, and only then install the "oracle-java11-installer-local" package. Details here:  https://www.linuxuprising.com/2019/06/new-oracle-java-11-installer-for-ubuntu.html

About Oracle Java 10, 12, 13 and 14: These versions have reached the end of public updates, therefore they are longer available for download. The Oracle Java 10/12/13/14 packages in this PPA no longer worked due to this, so I have removed them. Switch to Oracle Java 11 or OpenJDK 11 instead, which is long term support, or the latest Java 15.
 More info: https://launchpad.net/~linuxuprising/+archive/ubuntu/java
Press [ENTER] to continue or Ctrl-c to cancel adding it.

Hit:1 http://ppa.launchpad.net/linuxuprising/java/ubuntu disco InRelease
Ign:2 http://security.ubuntu.com/ubuntu disco-security InRelease
Ign:3 http://ug.archive.ubuntu.com/ubuntu disco InRelease
Ign:4 http://ug.archive.ubuntu.com/ubuntu disco-updates InRelease
Ign:5 http://ug.archive.ubuntu.com/ubuntu disco-backports InRelease
Err:6 http://ug.archive.ubuntu.com/ubuntu disco Release
  404  Not Found [IP: 197.155.77.2 80]
Err:7 http://ug.archive.ubuntu.com/ubuntu disco-updates Release
  404  Not Found [IP: 197.155.77.2 80]
Err:8 http://ug.archive.ubuntu.com/ubuntu disco-backports Release
  404  Not Found [IP: 197.155.77.2 80]
Err:9 http://security.ubuntu.com/ubuntu disco-security Release
  404  Not Found [IP: 91.189.88.152 80]
Reading package lists... Done
E: The repository 'http://ug.archive.ubuntu.com/ubuntu disco Release' does not have a Release file.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
E: The repository 'http://ug.archive.ubuntu.com/ubuntu disco-updates Release' does not have a Release file.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
E: The repository 'http://ug.archive.ubuntu.com/ubuntu disco-backports Release' does not have a Release file.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
E: The repository 'http://security.ubuntu.com/ubuntu disco-security Release' no longer has a Release file.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
opensource@opensource-OptiPlex-3010:~$