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The PPA from webupd8 developer team simplifies our task and provides us with an installer which does all this for us and enables auto-updates.
Installation
Before installing be sure on what's your plan and your Java Environment.
Do you upgrade an existing JVM with a new one (upgrading from 1.8.0_88 to 1.8.0_91) ? The links should remain the same.
Do you install a new JVM (JDK 1.9.0) ? Check if there is some diff with your previous known jinfo file.
Run the following commands in order to install or update the Oracle Java. The idea is applicable to others JVM.
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The installer takes a while since it needs to download the latest Java installer from the Oracle site.
The Then check your Java Environment. A jinfo should exist populated with your appropriate commands, tools or libraries including a unique priority number.
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