Is it possible to use javapackager on ZuluFX for Mac

Question

I was able to use ZuluFX 8 with javapackager on Windows. However, on a Mac I get this error:

Bundler Mac Application Image skipped because of a configuration problem: Cannot determine which JRE/JDK exists in the specified runtime directory.
Advice to fix: Point the runtime directory to one of the JDK/JRE root, the Contents/Home directory of that root, or the Contents/Home/jre directory of the JDK.

It's pretty easy to just move the package into Contents/Home but I doubt that will work as it seems there is no JRE bundled with the Mac version of ZuluFX 8. Is this something that can be worked around?

Answer 1

It's pretty easy to just move the package into Contents/Home but I doubt that will work as it seems there is no JRE bundled with the Mac version of ZuluFX 8.

From what I'm seeing, I'm not sure that's correct. The ZuluFx 8 archive for Mac contains a jre directory. I extracted the archive to ~/zuluFX and from there created the Contents/Home directory as required by MacOS and added a symbolic link to said jre directory there. I then set $JAVA_HOME accordingly:

$ pwd
/Users/cody/zuluFX
$ mkdir -p Contents/Home
$ ln -s ../../jre .
$ export JAVA_HOME=~/zuluFX

Then I utilized a simple javapackager example on github to test its usage (I have no other JREs/JDKs installed on this box). The example app simply dumps Java properties and environment variables in a TextArea.

I had to modify the 3build script in the example to comment out its attempt to re-set $JAVA_HOME, but otherwise, it builds successfully, with the following javapackager command:

javapackager \
  -deploy -Bruntime=${JAVA_HOME} \
  -native image \
  -srcdir . \
  -srcfiles MacJavaPropertiesApp.jar \
  -outdir release \
  -outfile ${APP_DIR_NAME} \
  -appclass MacJavaPropertiesApp \
  -name "MacJavaProperties" \
  -title "MacJavaProperties" \
  -nosign \
  -v

When I launch the resulting app, it reports the usage of the azul/zulu jre as expected: