Update alternative java

From my understanding I need to manually choose which Java to use before running each application. This led me to the update-java-alternatives -l command. When I run this I only see the following:. I don't understand why the update-java-alternatives doesn't display the same 3 options.

You can also see that, because the first command lists a lot of "JRE" Java Runtime Environment folders and the Program is just called "java". If I check which version is being used by issuing the command java -version or javac -version , I can see, that each command changes the program being used. However, using update-java-alternatives with a JDK Version changes both programs for me. The opendjk package is shipped with a.

As alternative, you configure alternatives without update-java-alternatives :. Are you talking about starting the IDE itself with different Java versions or using different versions in the IDE for compilation and running your app? For 1. I don't know how to do that for the Arduino IDE. For 2. You can, and really should, use both update-java-alternatives and update-alternatives together. Firstly, be sure to have the all the alternatives configured correctly. In order to configure update-java-alternatives you must use a hidden file with the same name as your directory but prefixed by a.

Just a side note too big for a comment. If you need to automatically switch to Java 8 compiler 1. It will automatically fetch any java 8 version available and set it using the command update-java-alternatives.

The echo '. You may skip it if you don't need this for a test suite. Good knowledge of networking, remote diagnostic techniques, firewalls and network security. Extensive experience with engineering application and database servers, high-availability systems, high-performance computing clusters, and process automation.

Sign in. Forgot your password? Get help. Password recovery. Igor Oseledko. Timeline Scripting. Killing Process Network Access. Generating and Running Multiple Scripts. Installing t CLI power tool for Twitter. Connect and share knowledge within a single location that is structured and easy to search. The command update-java-alternatives -s jreoracle-x64 is completely valid found in documentation also here but I get errors.

The package is also seen in the list of Java packages. Using the auto-mode does not make sense; maybe, I should be deleting some packages in my system first. OS: Debian 8. After running update-java-alternatives -s jreoracle-x64 , java -version will confirm you're using the Oracle JRE by default:. Sign up to join this community. The best answers are voted up and rise to the top. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Learn more.

How to update-java-alternatives successfully to Oracle's one in Debian? Ask Question.