log.txt

system ~/work/gems/jrubyfx master 1120% ~/work/jruby-9.3/bin/jruby -S rake install
touch lib/jrubyfx/core_ext/precompiled.rb
touch lib/jrubyfx/dsl_map.rb
touch lib/jrubyfx/imports.rb
JavaFX runtime not found.  Please install Java 7u6 or newer, set environment variable JFX_DIR to the folder that contains jfxrt.jar or set the environment variable PATH_TO_FX that points to the OpenJFX libraries
If you have Java 7u6 or later, this is a bug. Please report to the issue tracker on github. Include your OS version, 32/64bit, and architecture (x86, ARM, PPC, etc)
system ~/work/gems/jrubyfx master 1121% java -version
openjdk version "18" 2022-03-22
OpenJDK Runtime Environment Zulu18.28+13-CA (build 18+37)
OpenJDK 64-Bit Server VM Zulu18.28+13-CA (build 18+37, mixed mode, sharing)
system ~/work/gems/jrubyfx master 1122% javac -version
javac 18
system ~/work/gems/jrubyfx master 1123% pushd
~/Applications/jdks ~/work/gems/jrubyfx
system ~/Applications/jdks 1124% ls 
total 28
4 graalvm-ce-19.2.1/	     4 jdk8u242-b08/
4 graalvm-ce-java11-21.2.0/  4 jdk-9.0.4/
4 jdk-11+28/		     4 zulu18.28.13-ca-fx-jdk18.0.0-linux_x64/
4 jdk-17.0.1+12/
system ~/Applications/jdks 1125% ls zulu18.28.13-ca-fx-jdk18.0.0-linux_x64/jmods/
total 120136
21052 java.base.jmod		  324 jdk.incubator.foreign.jmod
  132 java.compiler.jmod	 1108 jdk.incubator.vector.jmod
   60 java.datatransfer.jmod	   16 jdk.internal.ed.jmod
13728 java.desktop.jmod		  100 jdk.internal.jvmstat.jmod
  756 javafx.base.jmod		  416 jdk.internal.le.jmod
 2536 javafx.controls.jmod	   92 jdk.internal.opt.jmod
  140 javafx.fxml.jmod		  440 jdk.internal.vm.ci.jmod
 4744 javafx.graphics.jmod	   12 jdk.internal.vm.compiler.jmod
 1608 javafx.media.jmod		   12 jdk.internal.vm.compiler.management.jmod
  100 javafx.swing.jmod		  264 jdk.jartool.jmod
32036 javafx.web.jmod		 1436 jdk.javadoc.jmod
   48 java.instrument.jmod	  140 jdk.jcmd.jmod
  128 java.logging.jmod		  468 jdk.jconsole.jmod
  884 java.management.jmod	  732 jdk.jdeps.jmod
  100 java.management.rmi.jmod	  832 jdk.jdi.jmod
  460 java.naming.jmod		  148 jdk.jdwp.agent.jmod
  728 java.net.http.jmod	  632 jdk.jfr.jmod
   68 java.prefs.jmod		  416 jdk.jlink.jmod
  268 java.rmi.jmod		  700 jdk.jpackage.jmod
   48 java.scripting.jmod	  676 jdk.jshell.jmod
  592 java.security.jgss.jmod	   12 jdk.jsobject.jmod
   88 java.security.sasl.jmod	   40 jdk.jstatd.jmod
   12 java.se.jmod		10012 jdk.localedata.jmod
   64 java.smartcardio.jmod	   96 jdk.management.agent.jmod
   84 java.sql.jmod		   64 jdk.management.jfr.jmod
  220 java.sql.rowset.jmod	   76 jdk.management.jmod
   12 java.transaction.xa.jmod	   68 jdk.naming.dns.jmod
  664 java.xml.crypto.jmod	   28 jdk.naming.rmi.jmod
 5076 java.xml.jmod		   32 jdk.net.jmod
   60 jdk.accessibility.jmod	   12 jdk.nio.mapmode.jmod
   40 jdk.attach.jmod		   32 jdk.random.jmod
 1172 jdk.charsets.jmod		   92 jdk.sctp.jmod
 9480 jdk.compiler.jmod		   72 jdk.security.auth.jmod
  392 jdk.crypto.cryptoki.jmod	   36 jdk.security.jgss.jmod
  136 jdk.crypto.ec.jmod	   24 jdk.unsupported.desktop.jmod
  164 jdk.dynalink.jmod		   28 jdk.unsupported.jmod
   16 jdk.editpad.jmod		   52 jdk.xml.dom.jmod
 2232 jdk.hotspot.agent.jmod	  112 jdk.zipfs.jmod
  156 jdk.httpserver.jmod