Running UbuntuStudio v20.04

Trying to get Oracle Java selected instead of OpenJDK in order for my Trading Platform to work - using a JNLP file. It must use the Oracle version. Have installed latest from Oracle from here.

It installed to dir/usr/lib/jvm/jre1.8.0_301but this is what it shows using this command.

MS-7640:~$ update-java-alternatives -l
java-1.11.0-openjdk-amd64 1111 /usr/lib/jvm/java-1.11.0-openjdk-amd64
java-1.8.0-openjdk-amd64 1081 /usr/lib/jvm/java-1.8.0-openjdk-amd64
MS-7640:~$ java -version
openjdk version "1.8.0_292"
OpenJDK Runtime Environment (build 1.8.0_292-8u292-10-0ubuntu1~20.04-b10)
OpenJDK 64-Bit Server VM (build 25.292-b10, mixed mode)

I don't see the Oracle version! How can I verify its installed and select it? Then perhaps my Trading Platform will run. Iced Tea may be intercepting, and ONLY uses OpenJDK. Don't know if I should Remove it ... or what?

In trying to Setup the Alternatives, I get the following Error:

MS-7640:~$ sudo update-alternatives --install /usr/bin/java OracleJava /usr/lib/jvm/jre1.8.0_301/bin/java 1
update-alternatives: error: alternative link /usr/bin/java is already managed by java

Any help is very appreciated. Thanks!

4 Sorted by: Reset to default

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