this simple script:

load("fx:base.js")

throw exceptions :

Exception in Application start method
Exception in thread "main" java.lang.RuntimeException: Exception in Application start method
at com.sun.javafx.application.LauncherImpl.launchApplication1(LauncherImpl.java:917)
at com.sun.javafx.application.LauncherImpl.lambda$launchApplication$153(LauncherImpl.java:182)
at java.lang.Thread.run(Thread.java:745)
Caused by: fx:base.js:51:8 Error: JavaFX runtime not found
at jdk.nashorn.internal.objects.NativeError.initException(NativeError.java:135)
at jdk.nashorn.internal.objects.NativeError.<init>(NativeError.java:101)
at jdk.nashorn.internal.objects.NativeError.<init>(NativeError.java:105)
at jdk.nashorn.internal.objects.NativeError.<init>(NativeError.java:109)
at jdk.nashorn.internal.objects.NativeError.constructor(NativeError.java:128)
at jdk.nashorn.internal.scripts.Script$Recompilation$14$666$\=fx\!base$cu1$restOf.L:42(fx:base.js:51)
at jdk.nashorn.internal.scripts.Script$Recompilation$11$\=fx\!base.:program(fx:base.js:42)
at jdk.nashorn.internal.runtime.ScriptFunctionData.invoke(ScriptFunctionData.java:636)
at jdk.nashorn.internal.runtime.ScriptFunction.invoke(ScriptFunction.java:228)
at jdk.nashorn.internal.runtime.ScriptRuntime.apply(ScriptRuntime.java:393)
at jdk.nashorn.internal.runtime.Context.evaluateSource(Context.java:1151)
at jdk.nashorn.internal.runtime.Context.load(Context.java:800)
at jdk.nashorn.internal.objects.Global.load(Global.java:996)
at jdk.nashorn.internal.scripts.Script$Recompilation$9$main1.:program(main1.js:3)
at jdk.nashorn.internal.runtime.ScriptFunctionData.invoke(ScriptFunctionData.java:636)
at jdk.nashorn.internal.runtime.ScriptFunction.invoke(ScriptFunction.java:228)
at jdk.nashorn.internal.runtime.ScriptRuntime.apply(ScriptRuntime.java:393)
at jdk.nashorn.internal.runtime.Context.evaluateSource(Context.java:1151)
at jdk.nashorn.internal.runtime.Context.load(Context.java:800)
at jdk.nashorn.internal.objects.Global.load(Global.java:996)
at jdk.nashorn.internal.scripts.Script$Recompilation$7$859A$\=fx\!bootstrap$cu1$restOf.start(fx:bootstrap.js:47)
at javafx.application.Application$$NashornJavaAdapter.start(Unknown Source)
at com.sun.javafx.application.LauncherImpl.lambda$launchApplication1$160(LauncherImpl.java:863)
at com.sun.javafx.application.PlatformImpl.lambda$runAndWait$173(PlatformImpl.java:326)
at com.sun.javafx.application.PlatformImpl.lambda$null$171(PlatformImpl.java:295)
at java.security.AccessController.doPrivileged(Native Method)
at com.sun.javafx.application.PlatformImpl.lambda$runLater$172(PlatformImpl.java:294)
at com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:95)
at com.sun.glass.ui.gtk.GtkApplication._runLoop(Native Method)
at com.sun.glass.ui.gtk.GtkApplication.lambda$null$49(GtkApplication.java:139)
... 1 more