$ cd /mnt/c/x3d-code/www.web3d.org/x3d/stylesheets/java/
$ javac -cp lib/javax.json-api-1.0.jar src/net/coderextreme/X3DJSONLD.java
$ cp src/net/coderextreme/X3DJSONLD.class classes/net/coderextreme/


$ jjs -J-Djava.class.path=jars/X3DJSAIL.3.3.full.jar:classes nashorn/examples/Json.js
[X3DLoaderObject error] Incorrectly handled object construction, current elementObject=ViewpointGroup (ViewpointGroup), child=Viewpoint, java.lang.ClassCastException: org.web3d.x3d.jsail.Navigation.ViewpointGroupObject cannot be cast to org.web3d.x3d.sai.Grouping.X3DGroupingNode
java.lang.ClassCastException: org.web3d.x3d.jsail.Navigation.ViewpointGroupObject cannot be cast to org.web3d.x3d.sai.Grouping.X3DGroupingNode
	at org.web3d.x3d.jsail.X3DLoaderObject.toX3dObjectTree(X3DLoaderObject.java:1146)
	at org.web3d.x3d.jsail.X3DLoaderObject.toX3dObjectTree(X3DLoaderObject.java:542)
	at org.web3d.x3d.jsail.X3DLoaderObject.toX3dObjectTree(X3DLoaderObject.java:542)
	at org.web3d.x3d.jsail.X3DLoaderObject.toX3dObjectTree(X3DLoaderObject.java:430)
	at org.web3d.x3d.jsail.X3DLoaderObject.toX3dObjectTree(X3DLoaderObject.java:399)
	at jdk.nashorn.internal.scripts.Script$Json.:program(nashorn/examples/Json.js:15)
	at jdk.nashorn.internal.runtime.ScriptFunctionData.invoke(ScriptFunctionData.java:637)
	at jdk.nashorn.internal.runtime.ScriptFunction.invoke(ScriptFunction.java:494)
	at jdk.nashorn.internal.runtime.ScriptRuntime.apply(ScriptRuntime.java:393)
	at jdk.nashorn.tools.Shell.apply(Shell.java:471)
	at jdk.nashorn.tools.Shell.runScripts(Shell.java:400)
	at jdk.nashorn.tools.Shell.run(Shell.java:179)
	at jdk.nashorn.tools.Shell.main(Shell.java:143)
	at jdk.nashorn.tools.Shell.main(Shell.java:119)
[X3DLoaderObject error] Incorrectly handled object construction, current elementObject=ViewpointGroup (ViewpointGroup), child=Viewpoint, java.lang.ClassCastException: org.web3d.x3d.jsail.Navigation.ViewpointGroupObject cannot be cast to org.web3d.x3d.sai.Grouping.X3DGroupingNode
java.lang.ClassCastException: org.web3d.x3d.jsail.Navigation.ViewpointGroupObject cannot be cast to org.web3d.x3d.sai.Grouping.X3DGroupingNode
	at org.web3d.x3d.jsail.X3DLoaderObject.toX3dObjectTree(X3DLoaderObject.java:1146)
	at org.web3d.x3d.jsail.X3DLoaderObject.toX3dObjectTree(X3DLoaderObject.java:542)
	at org.web3d.x3d.jsail.X3DLoaderObject.toX3dObjectTree(X3DLoaderObject.java:542)
	at org.web3d.x3d.jsail.X3DLoaderObject.toX3dObjectTree(X3DLoaderObject.java:430)
	at org.web3d.x3d.jsail.X3DLoaderObject.toX3dObjectTree(X3DLoaderObject.java:399)
	at jdk.nashorn.internal.scripts.Script$Json.:program(nashorn/examples/Json.js:15)
	at jdk.nashorn.internal.runtime.ScriptFunctionData.invoke(ScriptFunctionData.java:637)
	at jdk.nashorn.internal.runtime.ScriptFunction.invoke(ScriptFunction.java:494)
	at jdk.nashorn.internal.runtime.ScriptRuntime.apply(ScriptRuntime.java:393)
	at jdk.nashorn.tools.Shell.apply(Shell.java:471)
	at jdk.nashorn.tools.Shell.runScripts(Shell.java:400)
	at jdk.nashorn.tools.Shell.run(Shell.java:179)
	at jdk.nashorn.tools.Shell.main(Shell.java:143)
	at jdk.nashorn.tools.Shell.main(Shell.java:119)
Warning: toFileX3D() is overwriting prior file ./nashorn/examples/Json.x3d
Warning: toFileStylesheetConversion(X3dToJson.xslt) is overwriting prior file ./nashorn/examples/Json.json
Script DEF=colorTypeConversionScript contains CDATA source-code text, copied as "#sourceText" using "strings" mode
Script DEF=MaterialModulatorScript contains CDATA source-code text, copied as "#sourceText" using "strings" mode



$ diff -w nashorn/examples/HelloWorldProgramOutput.Java.x3d nashorn/examples/Json.x3d
32a33,35
>         <meta name='translated' content='06 June 2018'/>
>         <meta name='generator' content='X3dToJson.xslt, http://www.web3d.org/x3d/stylesheets/X3dToJson.html'/>
>         <meta name='reference' content='X3D JSON encoding: http://www.web3d.org/wiki/index.php/X3D_JSON_Encoding'/>
35,38c38
<         <ViewpointGroup description='Available viewpoints'>
<             <Viewpoint DEF='DefaultView' description='Hello X3DJSAIL'/>
<             <Viewpoint DEF='TopDownView' description='top-down view from above' orientation='1 0 0 -1.570796' position='0 100 0'/>
<         </ViewpointGroup>
---
>         <ViewpointGroup description='Available viewpoints'/>