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Old 24th October 2020, 16:33   #21  |  Link
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Join Date: Feb 2005
Posts: 26
Won't detect Java

I have version 1.19. Upon startup, it can't detect Java and throws a warning/error message.

I have Java 1.8 and 11 installed. However, I don't use the Oracle JDK, I use AdoptOpenJDK, due to Oracle's new licensing restrictions.

If I bring up a command prompt and type "java", I get Java (so java.exe is in the path). I also have a JAVA_HOME environment variable set.

I'm wondering how the program actually tries to find Java. I can think of two things that have gone wrong. One, the java that comes up is Java 11. Maybe you only want 8? Or two, you're looking for something specifically Oracle that I don't have, because I have a different Java package.

Adding: AdoptOpenJDK can do 4 things when installing. It can add Java to the system PATH, it can associate itself with .jar files, it can set JAVA_HOME, and it can set values in the registry at HKEY_LOCAL_MACHINE\SOFTWARE\JavaSoft

Each of these 4 things is optional in the installer, but I have all 4 things enabled here. AdoptOpenJDK doesn't install in the Oracle location in Program Files: if you are specifically looking for Java there, it isn't there. But there are 4 other things that can looked for to try to find Java (well, at least 3, not sure the .jar association is all that helpful). At the very least, I'd think that looking for java.exe in the path and/or looking for JAVA_HOME should work. Or maybe allow the location of the JRE to be a configured option?

There are quite a few packagings of Java these days, and the new Oracle licensing makes that particular one quite sub-optimal. (I say knowing full well that Java's usage on the desktop is really minimal these days anyways.)

I'd like to help figure this out: I develop with Java so I'm familiar with how it installs/integrates.



Last edited by kevbo; 25th October 2020 at 01:48. Reason: Additional info
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