[NETBEANS-4892] Platform installer doesn't consider java 15 valid

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: Next, 12.0, 12.1
• Component/s: platform - installer

Environment

Unix
Windows?

• Assignee: Unassigned
• Reporter: Austin Stephens
• Created: 09/Oct/20 17:06
• Updated: 09/Oct/20 18:56

Description

Apparently the method of formatting Java versions has changed at Java 15? I am using the AdoptOpenJdk version and it has gone from jdk-14.0.2+12 to jdk-15+32. As you could imagine, those two parse differently and `compareVersions` comes to the conclusion that "15+32" is less than 15.0.0 (The expected version it generates for java 15). This results in any bundle java (or possibly any java in general, I haven't tested that yet) from passing the verification test and the installer will never find a java to use.

The best work around I can currently think of (other than building your own copy of Java 15) is to use Java <=14, which may significantly complicate the building process...

For reference, an easy way to possibly test if your solution fixed the problem is to source nbi/engine/native/launcher/unix/src/launcher.sh and run `compareVersions 15+36 15.0.0`

This bug may also happen on windows, but I haven't checked since the installer is a bit more complicated on windows...