<html xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"><head><meta http-equiv=Content-Type content="text/html; charset=utf-8"><meta name=Generator content="Microsoft Word 15 (filtered medium)"><style><!--
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--></style></head><body lang=EN-US link=blue vlink="#954F72"><div class=WordSection1><p class=MsoNormal>Solution is in <span style='color:#70AD47'>green </span>below. I don’t think it’s my version, as I print out the DOM, and get:</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal> <ViewpointGroup description="Available viewpoints"></p><p class=MsoNormal> <Viewpoint DEF="DefaultView" description="Hello X3DJSAIL"/></p><p class=MsoNormal> <Viewpoint DEF="TopDownView"</p><p class=MsoNormal> description="top-down view from above"</p><p class=MsoNormal> orientation="1 0 0 -1.570796" position="0 100 0"/></p><p class=MsoNormal> </ViewpointGroup></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Here’s what I do from when I print the DOM to the end of the program…all pretty much X3DJSAIL:</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal> print(loader.serializeDOM(loader.getX3DVersion(jsobj), document));</p><p class=MsoNormal> var X3DLoaderObject = Java.type("org.web3d.x3d.jsail.X3DLoaderObject")</p><p class=MsoNormal> var xmlLoader = new X3DLoaderObject();</p><p class=MsoNormal> var X3D0 = xmlLoader.toX3dObjectTree(document);</p><p class=MsoNormal> X3D0.toFileX3D("./nashorn/examples/Json.x3d");</p><p class=MsoNormal> X3D0.toFileJSON("./nashorn/examples/Json.json");</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I can try converting it to a Java program if you like, or I can try running your code to see if I can generate the error with your code. Thus, I ran:</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>$ java -cp ../jars/X3DJSAIL.3.3.full.jar org.web3d.x3d.jsail.CommandLine ../examples/HelloWorldProgramOutput.x3d -tofile foo.xml -toXML</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>foo.xml contains the Viewpoints</p><p class=MsoNormal><br>Here is my program that has the Viewpoints when the DOM is printed, but is missing it when toFileX3D is called (nashorn/examples/Java.java)</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>import net.coderextreme.X3DJSONLD;</p><p class=MsoNormal>import org.w3c.dom.Document;</p><p class=MsoNormal>import javax.json.JsonObject;</p><p class=MsoNormal>import java.io.File;</p><p class=MsoNormal>import org.web3d.x3d.jsail.X3DLoaderObject;</p><p class=MsoNormal>import org.web3d.x3d.jsail.Core.X3DObject;</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>class Java {</p><p class=MsoNormal> public static void main(String [] args) throws Exception {</p><p class=MsoNormal> X3DJSONLD loader = new X3DJSONLD();</p><p class=MsoNormal> JsonObject jsobj = loader.readJsonFile(new File("./nashorn/examples/HelloWorldProgramOutput.json"));</p><p class=MsoNormal> Document document = loader.loadJsonIntoDocument(jsobj);</p><p class=MsoNormal> System.out.print(loader.serializeDOM(loader.getX3DVersion(jsobj), document));</p><p class=MsoNormal> X3DLoaderObject xmlLoader = new X3DLoaderObject();</p><p class=MsoNormal> X3DObject X3D0 = (X3DObject)xmlLoader.toX3dObjectTree(document);</p><p class=MsoNormal> X3D0.toFileX3D("./nashorn/examples/Java.x3d");</p><p class=MsoNormal> }</p><p class=MsoNormal>}</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Here’s how you compile it:</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>javac -cp jars/X3DJSAIL.3.3.full.jar";"classes nashorn/examples/Java.java </p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Here’s how you run it:</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>java -cp jars/X3DJSAIL.3.3.full.jar";"classes";"nashorn/examples Java</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I can’t get a similar program with just X3DJSAIL to do the same thing, but I have this program:</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>load('nashorn/node/X3Dautoclass.js');</p><p class=MsoNormal>var X3DLoaderObject = Java.type("org.web3d.x3d.jsail.X3DLoaderObject")</p><p class=MsoNormal>var x3dLoader = new X3DLoaderObject();</p><p class=MsoNormal>x3dLoader.loadModelFromFileX3D("./nashorn/examples/HelloWorldProgramOutput.x3d");</p><p class=MsoNormal>if (x3dLoader.isLoadSuccessful())</p><p class=MsoNormal>{</p><p class=MsoNormal> document = x3dLoader.getDomDocument();</p><p class=MsoNormal> var xmlLoader = new X3DLoaderObject();</p><p class=MsoNormal> var X3D0 = xmlLoader.toX3dObjectTree(document);</p><p class=MsoNormal> X3D0.toFileX3D("./nashorn/examples/X3d.x3d");</p><p class=MsoNormal>}</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Which doesn’t have the error. There must be some difference in the DOM. Do we have a DOM differencing tool we can use?</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Again, here is the error being thrown:</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>[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</p><p class=MsoNormal>java.lang.ClassCastException: org.web3d.x3d.jsail.Navigation.ViewpointGroupObject cannot be cast to org.web3d.x3d.sai.Grouping.X3DGroupingNode</p><p class=MsoNormal> at org.web3d.x3d.jsail.X3DLoaderObject.toX3dObjectTree(X3DLoaderObject.java:1146)</p><p class=MsoNormal> at org.web3d.x3d.jsail.X3DLoaderObject.toX3dObjectTree(X3DLoaderObject.java:542)</p><p class=MsoNormal> at org.web3d.x3d.jsail.X3DLoaderObject.toX3dObjectTree(X3DLoaderObject.java:542)</p><p class=MsoNormal> at org.web3d.x3d.jsail.X3DLoaderObject.toX3dObjectTree(X3DLoaderObject.java:430)</p><p class=MsoNormal> at org.web3d.x3d.jsail.X3DLoaderObject.toX3dObjectTree(X3DLoaderObject.java:399)</p><p class=MsoNormal> at Java.main(Java.java:15)</p><p class=MsoNormal>[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</p><p class=MsoNormal>java.lang.ClassCastException: org.web3d.x3d.jsail.Navigation.ViewpointGroupObject cannot be cast to org.web3d.x3d.sai.Grouping.X3DGroupingNode</p><p class=MsoNormal> at org.web3d.x3d.jsail.X3DLoaderObject.toX3dObjectTree(X3DLoaderObject.java:1146)</p><p class=MsoNormal> at org.web3d.x3d.jsail.X3DLoaderObject.toX3dObjectTree(X3DLoaderObject.java:542)</p><p class=MsoNormal> at org.web3d.x3d.jsail.X3DLoaderObject.toX3dObjectTree(X3DLoaderObject.java:542)</p><p class=MsoNormal> at org.web3d.x3d.jsail.X3DLoaderObject.toX3dObjectTree(X3DLoaderObject.java:430)</p><p class=MsoNormal> at org.web3d.x3d.jsail.X3DLoaderObject.toX3dObjectTree(X3DLoaderObject.java:399)</p><p class=MsoNormal> at Java.main(Java.java:15)</p><p class=MsoNormal><br>It looks like ViewpointGroupObject is not an X3DGroupingNode, so we need another “else if” case before the final case where the error is thrown<span style='color:#70AD47'>. Or just get rid of the X3DGroupingNode cast.<o:p></o:p></span></p><p class=MsoNormal><br>I don’t know why the X3DJSAIL version which doesn’t load JSON doesn’t throw the error. That is still a mystery.</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>John</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Sent from <a href="https://go.microsoft.com/fwlink/?LinkId=550986">Mail</a> for Windows 10</p><p class=MsoNormal><o:p> </o:p></p><div style='mso-element:para-border-div;border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal style='border:none;padding:0in'><b>From: </b><a href="mailto:brutzman@nps.edu">Don Brutzman</a><br><b>Sent: </b>Wednesday, June 6, 2018 6:20 PM<br><b>To: </b><a href="mailto:yottzumm@gmail.com">John Carlson</a><br><b>Cc: </b><a href="mailto:x3d-public@web3d.org">x3d-public@web3d.org</a><br><b>Subject: </b>Re: X3DJSAIL, X3dToJava.xslt and DOM X3DLoaderObjecttesting:anotherClassCastException</p></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Hmmm. Likely it is your version John, just checked and we have a working round-trip "smoke test" for this construct.</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>http://www.web3d.org/specifications/java/X3DJSAIL.html#Examples</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Excerpts in the examples/ directory, presented in order of production:</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>1. HelloWorldProgram.java</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>// ========== More object declarations, some with DEF values ==========</p><p class=MsoNormal>String defaultViewpointDEF = "DefaultView";</p><p class=MsoNormal>String topDownViewpointDEF = "TopDownView";</p><p class=MsoNormal>ViewpointGroupObject viewpointGroup = new ViewpointGroupObject(); // requires <component name='Navigation' level='3'/></p><p class=MsoNormal>ViewpointObject defaultViewpoint = new ViewpointObject(defaultViewpointDEF);</p><p class=MsoNormal>ViewpointObject topDownViewpoint = new ViewpointObject(topDownViewpointDEF);</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>2. HelloWorldProgramOutput.x3d</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><ViewpointGroup description='Available viewpoints'></p><p class=MsoNormal> <Viewpoint DEF='DefaultView' description='Hello X3DJSAIL'/></p><p class=MsoNormal> <Viewpoint DEF='TopDownView' description='top-down view from above' orientation='1 0 0 -1.570796' position='0 100 0'/></p><p class=MsoNormal></ViewpointGroup></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>3. Ant build.xml in stylesheets/ parent directory:</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal> <echo message="==========================================="/></p><p class=MsoNormal> <echo message="org.web3d.x3d.jsail.CommandLine java/examples/HelloWorldProgramOutput.x3d -toZIP -toFile ${java.examples.dir}/HelloWorldProgramOutput.ant.zip"/></p><p class=MsoNormal> <java classname="org.web3d.x3d.jsail.CommandLine" classpath="${java.jars.dir}/${jsai.full.archive.jar.name};." fork="${fork}"></p><p class=MsoNormal> <arg value="${java.examples.dir}/HelloWorldProgramOutput.x3d"/><!-- input model --></p><p class=MsoNormal> <arg value="-toZIP"/></p><p class=MsoNormal> <arg value="-toFile"/></p><p class=MsoNormal> <arg value="${java.examples.dir}/HelloWorldProgramOutput.ant.zip"/></p><p class=MsoNormal> </java></p><p class=MsoNormal> <echo message="==========================================="/></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>4. HelloWorldProgramOutputLog.txt</p><p class=MsoNormal>===========================================</p><p class=MsoNormal>org.web3d.x3d.jsail.CommandLine java/examples/HelloWorldProgramOutput.x3d -toZIP -toFile java/examples/HelloWorldProgramOutput.ant.zip</p><p class=MsoNormal>parameter: source file HelloWorldProgramOutput.x3d filesize 20956 bytes, parsed using Document Object Model (DOM) X3DLoader</p><p class=MsoNormal>parameter: "-toZIP" for conversion to compressed ZIP containing model</p><p class=MsoNormal>parameter: "-toFile" "java/examples/HelloWorldProgramOutput.ant.zip" for result file name root java/examples/HelloWorldProgramOutput.ant</p><p class=MsoNormal>convert to ZIP:</p><p class=MsoNormal>source: java/examples/HelloWorldProgramOutput.x3d filesize 20956 bytes</p><p class=MsoNormal>result: HelloWorldProgramOutput.ant.zip filesize 5574 bytes, compression 26.60% of original</p><p class=MsoNormal>===========================================</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>5. HelloWorldProgramOutput.ReloadedDOM.x3d</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><ViewpointGroup description='Available viewpoints'></p><p class=MsoNormal> <Viewpoint DEF='DefaultView' description='Hello X3DJSAIL'/></p><p class=MsoNormal> <Viewpoint DEF='TopDownView' description='top-down view from above' orientation='1 0 0 -1.570796' position='0 100 0'/></p><p class=MsoNormal></ViewpointGroup></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>so in this case, YMMV likely indicates that you need an update.</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>On 6/6/2018 2:37 PM, John Carlson wrote:</p><p class=MsoNormal>> Try stepping through with these commands at command prompt or similar (you’ll have to use diff and cp from Ubuntu, now available on Windows or similar commands under DOS)</p><p class=MsoNormal>> </p><p class=MsoNormal>> $ cd /c/x3d-code/www.web3d.org/x3d/stylesheets/java/</p><p class=MsoNormal>> </p><p class=MsoNormal>> $ javac -cp lib/javax.json-api-1.0.jar src/net/coderextreme/X3DJSONLD.java</p><p class=MsoNormal>> </p><p class=MsoNormal>> $ cp src/net/coderextreme/X3DJSONLD.class classes/net/coderextreme/</p><p class=MsoNormal>> </p><p class=MsoNormal>> $ jjs -cp "jars/X3DJSAIL.3.3.full.jar;classes" nashorn/examples/Json.js # you may have to use the Java 8 way of specifying the classpath. See build.xml</p><p class=MsoNormal>> </p><p class=MsoNormal>> $ diff -w nashorn/examples/HelloWorldProgramOutput.Java.x3d nashorn/examples/Json.x3d</p><p class=MsoNormal>> </p><p class=MsoNormal>> 32a33,35</p><p class=MsoNormal>> </p><p class=MsoNormal>> > <meta name='translated' content='27 May 2018'/></p><p class=MsoNormal>> </p><p class=MsoNormal>> > <meta name='generator' content='X3dToJson.xslt, http://www.web3d.org/x3d/stylesheets/X3dToJson.html'/></p><p class=MsoNormal>> </p><p class=MsoNormal>> > <meta name='reference' content='X3D JSON encoding: http://www.web3d.org/wiki/index.php/X3D_JSON_Encoding'/></p><p class=MsoNormal>> </p><p class=MsoNormal>> 35,38c38</p><p class=MsoNormal>> </p><p class=MsoNormal>> < <ViewpointGroup description='Available viewpoints'></p><p class=MsoNormal>> </p><p class=MsoNormal>> < <Viewpoint DEF='DefaultView' description='Hello X3DJSAIL'/></p><p class=MsoNormal>> </p><p class=MsoNormal>> < <Viewpoint DEF='TopDownView' description='top-down view from above' orientation='1 0 0 -1.570796' position='0 100 0'/></p><p class=MsoNormal>> </p><p class=MsoNormal>> < </ViewpointGroup></p><p class=MsoNormal>> </p><p class=MsoNormal>> ---</p><p class=MsoNormal>> </p><p class=MsoNormal>> > <ViewpointGroup description='Available viewpoints'/></p><p class=MsoNormal>> </p><p class=MsoNormal>> You will see the missing Viewpoint’s (children of ViewpointGroup) as above. Also jjs will generate significant output.</p><p class=MsoNormal>> </p><p class=MsoNormal>> I can’t connect through svn, so I may be out of date.</p><p class=MsoNormal>> </p><p class=MsoNormal>> John</p><p class=MsoNormal>> </p><p class=MsoNormal>> Sent from Mail <https://go.microsoft.com/fwlink/?LinkId=550986> for Windows 10</p><p class=MsoNormal>> </p><p class=MsoNormal>> *From: *Don Brutzman <mailto:brutzman@nps.edu></p><p class=MsoNormal>> *Sent: *Wednesday, June 6, 2018 9:41 AM</p><p class=MsoNormal>> *To: *John Carlson <mailto:yottzumm@gmail.com></p><p class=MsoNormal>> *Cc: *x3d-public@web3d.org <mailto:x3d-public@web3d.org></p><p class=MsoNormal>> *Subject: *Re: X3DJSAIL, X3dToJava.xslt and DOM X3DLoaderObject testing:anotherClassCastException</p><p class=MsoNormal>> </p><p class=MsoNormal>> 1. Hi John, finally getting back to this one.</p><p class=MsoNormal>> </p><p class=MsoNormal>> On 4/30/2018 3:15 PM, John Carlson wrote:</p><p class=MsoNormal>> </p><p class=MsoNormal>> > Previously reported problem, now assigned to the X3DLoaderObject, I believe.</p><p class=MsoNormal>> </p><p class=MsoNormal>> ></p><p class=MsoNormal>> </p><p class=MsoNormal>> > No Viewpoint children in X3D or JSON output.</p><p class=MsoNormal>> </p><p class=MsoNormal>> Not sure what that means? Viewpoint node typically does not have any children, except perhaps for a Metadata* node or an IS/connect.</p><p class=MsoNormal>> </p><p class=MsoNormal>> > Is a problem with X3DLoaderObject, looks like another class cast exception. X3DJSONLD was eliminated from the problem by printing out the DOM object, and verifying the Viewpoint objects were there. See x3d-code/www.web3d.org/x3d/stylesheets/java/nashorn/examples/Quotes.js.</p><p class=MsoNormal>> </p><p class=MsoNormal>> ></p><p class=MsoNormal>> </p><p class=MsoNormal>> > Can be regenerated by running `ant test.nashorn` in x3d-code/www.web3d.org/x3d/stylesheets/java</p><p class=MsoNormal>> </p><p class=MsoNormal>> ></p><p class=MsoNormal>> </p><p class=MsoNormal>> > See output in nashorn/examples/Json.{json,x3d}</p><p class=MsoNormal>> </p><p class=MsoNormal>> ></p><p class=MsoNormal>> </p><p class=MsoNormal>> > John</p><p class=MsoNormal>> </p><p class=MsoNormal>> OK have recently updated to Java JDK 1.8.0_172 and adjusted PATH to confirm jjs is running OK.</p><p class=MsoNormal>> </p><p class=MsoNormal>> Have also synchronized X3DJSAIL sudirectory nashorn/ and contents with subversion.</p><p class=MsoNormal>> </p><p class=MsoNormal>> I get the following outputs when running test.nashorn build target:</p><p class=MsoNormal>> </p><p class=MsoNormal>> ============================================================</p><p class=MsoNormal>> </p><p class=MsoNormal>> ant -f E:\\x3d-code\\www.web3d.org\\x3d\\stylesheets\\java test.nashorn</p><p class=MsoNormal>> </p><p class=MsoNormal>> test.nashorn:</p><p class=MsoNormal>> </p><p class=MsoNormal>> ===========================================</p><p class=MsoNormal>> </p><p class=MsoNormal>> ant nashorn/build.xml test.nashorn</p><p class=MsoNormal>> </p><p class=MsoNormal>> X3D Nashorn SAI Library.test.nashorn:</p><p class=MsoNormal>> </p><p class=MsoNormal>> Compile:</p><p class=MsoNormal>> </p><p class=MsoNormal>> Compiling 1 source file to E:\x3d-code\www.web3d.org\x3d\stylesheets\java\classes</p><p class=MsoNormal>> </p><p class=MsoNormal>> Compiling 1 source file to E:\x3d-code\www.web3d.org\x3d\stylesheets\java\classes</p><p class=MsoNormal>> </p><p class=MsoNormal>> Copy:</p><p class=MsoNormal>> </p><p class=MsoNormal>> Copying 1 file to E:\x3d-code\www.web3d.org\x3d\stylesheets\java\nashorn\examples</p><p class=MsoNormal>> </p><p class=MsoNormal>> Copying E:\x3d-code\www.web3d.org\x3d\stylesheets\java\examples\HelloWorldProgramOutput.x3d to E:\x3d-code\www.web3d.org\x3d\stylesheets\java\nashorn\examples\HelloWorldProgramOutput.x3d</p><p class=MsoNormal>> </p><p class=MsoNormal>> Copying 1 file to E:\x3d-code\www.web3d.org\x3d\stylesheets\java\nashorn\examples</p><p class=MsoNormal>> </p><p class=MsoNormal>> Copying E:\x3d-code\www.web3d.org\x3d\stylesheets\java\examples\HelloWorldProgramOutput.json to E:\x3d-code\www.web3d.org\x3d\stylesheets\java\nashorn\examples\HelloWorldProgramOutput.json</p><p class=MsoNormal>> </p><p class=MsoNormal>> Run:</p><p class=MsoNormal>> </p><p class=MsoNormal>> parameter: source file HelloWorldProgramOutput.x3d filesize 20956 bytes, parsed using Document Object Model (DOM) X3DLoader</p><p class=MsoNormal>> </p><p class=MsoNormal>> parameter: "-tojs" for conversion to X3DJSONLD JavaScript source</p><p class=MsoNormal>> </p><p class=MsoNormal>> parameter: "-toFile" "nashorn/examples/HelloWorldProgramOutput.Nashorn.js" for result file name root nashorn/examples/HelloWorldProgramOutput.Nashorn</p><p class=MsoNormal>> </p><p class=MsoNormal>> convert to JS JavaScript:</p><p class=MsoNormal>> </p><p class=MsoNormal>> Warning: toFileJavaScript() is overwriting prior file nashorn/examples/HelloWorldProgramOutput.Nashorn.js</p><p class=MsoNormal>> </p><p class=MsoNormal>> Script DEF=colorTypeConversionScript contains CDATA source-code text, copied as "#sourceText" using "strings" mode</p><p class=MsoNormal>> </p><p class=MsoNormal>> Script DEF=MaterialModulatorScript contains CDATA source-code text, copied as "#sourceText" using "strings" mode</p><p class=MsoNormal>> </p><p class=MsoNormal>> TypeError: input.readAllBytes is not a function</p><p class=MsoNormal>> </p><p class=MsoNormal>> Error: Cannot read file [E:\x3d-code\www.web3d.org\x3d\stylesheets\java\nashorn\node_modules\xmldom\package.json]:</p><p class=MsoNormal>> </p><p class=MsoNormal>> [Error] TODO problem handling local exception within CommandLine, exiting</p><p class=MsoNormal>> </p><p class=MsoNormal>> org.web3d.x3d.sai.X3DException: ScriptException when processing fileName nashorn\examples\HelloWorldProgramOutput.Nashorn.js.intermediate.js, unable to save result: javax.script.ScriptException: Error: Cannot load JSON file in nashorn/jvm-npm.js at line number 216 at column number 8</p><p class=MsoNormal>> </p><p class=MsoNormal>> at org.web3d.x3d.jsail.Core.X3DObject.toFileJavaScript(X3DObject.java:1662)</p><p class=MsoNormal>> </p><p class=MsoNormal>> at org.web3d.x3d.jsail.CommandLine.run(CommandLine.java:628)</p><p class=MsoNormal>> </p><p class=MsoNormal>> at org.web3d.x3d.jsail.CommandLine.main(CommandLine.java:163)</p><p class=MsoNormal>> </p><p class=MsoNormal>> parameter: source file HelloWorldProgramOutput.x3d filesize 20956 bytes, parsed using Document Object Model (DOM) X3DLoader</p><p class=MsoNormal>> </p><p class=MsoNormal>> parameter: "-toJSON" for conversion to JSON encoding</p><p class=MsoNormal>> </p><p class=MsoNormal>> parameter: "-toFile" "nashorn/examples/HelloWorldProgramOutput.Java.json" for result file name root nashorn/examples/HelloWorldProgramOutput.Java</p><p class=MsoNormal>> </p><p class=MsoNormal>> convert to JSON:</p><p class=MsoNormal>> </p><p class=MsoNormal>> Warning: toFileStylesheetConversion(X3dToJson.xslt) is overwriting prior file nashorn/examples/HelloWorldProgramOutput.Java.json</p><p class=MsoNormal>> </p><p class=MsoNormal>> Script DEF=colorTypeConversionScript contains CDATA source-code text, copied as "#sourceText" using "strings" mode</p><p class=MsoNormal>> </p><p class=MsoNormal>> Script DEF=MaterialModulatorScript contains CDATA source-code text, copied as "#sourceText" using "strings" mode</p><p class=MsoNormal>> </p><p class=MsoNormal>> file conversion successful: HelloWorldProgramOutput.Java.json (39749 bytes)</p><p class=MsoNormal>> </p><p class=MsoNormal>> parameter: source file HelloWorldProgramOutput.x3d filesize 20956 bytes, parsed using Document Object Model (DOM) X3DLoader</p><p class=MsoNormal>> </p><p class=MsoNormal>> parameter: "-toX3D" for conversion to X3D encoding</p><p class=MsoNormal>> </p><p class=MsoNormal>> parameter: "-toFile" "nashorn/examples/HelloWorldProgramOutput.Java.x3d" for result file name root nashorn/examples/HelloWorldProgramOutput.Java</p><p class=MsoNormal>> </p><p class=MsoNormal>> convert to X3D:</p><p class=MsoNormal>> </p><p class=MsoNormal>> Warning: toFileX3D() is overwriting prior file nashorn/examples/HelloWorldProgramOutput.Java.x3d</p><p class=MsoNormal>> </p><p class=MsoNormal>> file conversion successful: HelloWorldProgramOutput.Java.x3d (20956 bytes)</p><p class=MsoNormal>> </p><p class=MsoNormal>> ===========================================</p><p class=MsoNormal>> </p><p class=MsoNormal>> ============================================================</p><p class=MsoNormal>> </p><p class=MsoNormal>> As you can see, the exception is in nashorn/jvm-npm.js:</p><p class=MsoNormal>> </p><p class=MsoNormal>> TypeError: input.readAllBytes is not a function</p><p class=MsoNormal>> </p><p class=MsoNormal>> Header in that file indicates that you have modified it.</p><p class=MsoNormal>> </p><p class=MsoNormal>> Specific javascript code block of interest:</p><p class=MsoNormal>> </p><p class=MsoNormal>> function readFile (filename, core) {</p><p class=MsoNormal>> </p><p class=MsoNormal>> var input;</p><p class=MsoNormal>> </p><p class=MsoNormal>> try {</p><p class=MsoNormal>> </p><p class=MsoNormal>> if (core) {</p><p class=MsoNormal>> </p><p class=MsoNormal>> var classloader = java.lang.Thread.currentThread().getContextClassLoader();</p><p class=MsoNormal>> </p><p class=MsoNormal>> input = classloader.getResourceAsStream(filename);</p><p class=MsoNormal>> </p><p class=MsoNormal>> } else {</p><p class=MsoNormal>> </p><p class=MsoNormal>> input = new java.io.FileInputStream(filename);</p><p class=MsoNormal>> </p><p class=MsoNormal>> }</p><p class=MsoNormal>> </p><p class=MsoNormal>> return new java.lang.String(input.readAllBytes());</p><p class=MsoNormal>> </p><p class=MsoNormal>> } catch (e) {</p><p class=MsoNormal>> </p><p class=MsoNormal>> System.err.println(e);</p><p class=MsoNormal>> </p><p class=MsoNormal>> throw new ModuleError('Cannot read file [' + filename + ']: ', 'IO_ERROR', e);</p><p class=MsoNormal>> </p><p class=MsoNormal>> }</p><p class=MsoNormal>> </p><p class=MsoNormal>> }</p><p class=MsoNormal>> </p><p class=MsoNormal>> JDK 8 Javadoc for java.io.FileInputStream does not provide a "readAllBytes()" method. (Nor does JDK 1.9; however I am currently holding at 1.8 to stay compatible with Netbeans 8.)</p><p class=MsoNormal>> </p><p class=MsoNormal>> https://docs.oracle.com/javase/8/docs/api/java/io/FileInputStream.html</p><p class=MsoNormal>> </p><p class=MsoNormal>> So it looks like you need another method.</p><p class=MsoNormal>> </p><p class=MsoNormal>> A search for "java.io.FileInputStream readAllBytes" provides a number of hits. For example:</p><p class=MsoNormal>> </p><p class=MsoNormal>> File to byte[] in Java</p><p class=MsoNormal>> </p><p class=MsoNormal>> https://stackoverflow.com/questions/858980/file-to-byte-in-java</p><p class=MsoNormal>> </p><p class=MsoNormal>> 2. Continuing with your prior error console also appears fruitful:</p><p class=MsoNormal>> </p><p class=MsoNormal>> > [exec] [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</p><p class=MsoNormal>> </p><p class=MsoNormal>> ></p><p class=MsoNormal>> </p><p class=MsoNormal>> > [exec] java.lang.ClassCastException: org.web3d.x3d.jsail.Navigation.ViewpointGroupObject cannot be cast to org.web3d.x3d.sai.Grouping.X3DGroupingNode</p><p class=MsoNormal>> </p><p class=MsoNormal>> ></p><p class=MsoNormal>> </p><p class=MsoNormal>> > [exec] at org.web3d.x3d.jsail.X3DLoaderObject.toX3dObjectTree(X3DLoaderObject.java:1146)</p><p class=MsoNormal>> </p><p class=MsoNormal>> ></p><p class=MsoNormal>> </p><p class=MsoNormal>> > [exec] at org.web3d.x3d.jsail.X3DLoaderObject.toX3dObjectTree(X3DLoaderObject.java:542)</p><p class=MsoNormal>> </p><p class=MsoNormal>> ></p><p class=MsoNormal>> </p><p class=MsoNormal>> > [exec] at org.web3d.x3d.jsail.X3DLoaderObject.toX3dObjectTree(X3DLoaderObject.java:542)</p><p class=MsoNormal>> </p><p class=MsoNormal>> ></p><p class=MsoNormal>> </p><p class=MsoNormal>> > [exec] at org.web3d.x3d.jsail.X3DLoaderObject.toX3dObjectTree(X3DLoaderObject.java:430)</p><p class=MsoNormal>> </p><p class=MsoNormal>> ></p><p class=MsoNormal>> </p><p class=MsoNormal>> > [exec] at org.web3d.x3d.jsail.X3DLoaderObject.toX3dObjectTree(X3DLoaderObject.java:399)</p><p class=MsoNormal>> </p><p class=MsoNormal>> ></p><p class=MsoNormal>> </p><p class=MsoNormal>> > [exec] at jdk.scripting.nashorn.scripts/jdk.nashorn.internal.scripts.Script$Recompilation$372$Json$cu1$restOf.:program(nashorn/examples/Json.js:15)</p><p class=MsoNormal>> </p><p class=MsoNormal>> ></p><p class=MsoNormal>> </p><p class=MsoNormal>> > [exec] at jdk.scripting.nashorn/jdk.nashorn.internal.runtime.ScriptFunctionData.invoke(ScriptFunctionData.java:655)</p><p class=MsoNormal>> </p><p class=MsoNormal>> ></p><p class=MsoNormal>> </p><p class=MsoNormal>> > [exec] at jdk.scripting.nashorn/jdk.nashorn.internal.runtime.ScriptFunction.invoke(ScriptFunction.java:513)</p><p class=MsoNormal>> </p><p class=MsoNormal>> ></p><p class=MsoNormal>> </p><p class=MsoNormal>> > [exec] at jdk.scripting.nashorn/jdk.nashorn.internal.runtime.ScriptRuntime.apply(ScriptRuntime.java:527)</p><p class=MsoNormal>> </p><p class=MsoNormal>> ></p><p class=MsoNormal>> </p><p class=MsoNormal>> > [exec] at jdk.scripting.nashorn/jdk.nashorn.tools.Shell.apply(Shell.java:519)</p><p class=MsoNormal>> </p><p class=MsoNormal>> ></p><p class=MsoNormal>> </p><p class=MsoNormal>> > [exec] at jdk.scripting.nashorn/jdk.nashorn.tools.Shell.runScripts(Shell.java:448)</p><p class=MsoNormal>> </p><p class=MsoNormal>> ></p><p class=MsoNormal>> </p><p class=MsoNormal>> > [exec] at jdk.scripting.nashorn/jdk.nashorn.tools.Shell.run(Shell.java:186)</p><p class=MsoNormal>> </p><p class=MsoNormal>> ></p><p class=MsoNormal>> </p><p class=MsoNormal>> > [exec] at jdk.scripting.nashorn.shell/jdk.nashorn.tools.jjs.Main.main(Main.java:104)</p><p class=MsoNormal>> </p><p class=MsoNormal>> ></p><p class=MsoNormal>> </p><p class=MsoNormal>> > [exec] at jdk.scripting.nashorn.shell/jdk.nashorn.tools.jjs.Main.main(Main.java:80)</p><p class=MsoNormal>> </p><p class=MsoNormal>> Looks like it was trying to treat ViewpointGroup like a X3DGroupingNode - but it is not. ViewpointGroup is not a X3DGroupingNode node, and can only contain a Metadata* node, Viewpoint/OrthoViewpoint/GeoViewpoint and other ViewpointGroup nodes.</p><p class=MsoNormal>> </p><p class=MsoNormal>> This might have been fixed already as part of the many DOM loader improvements performed; not seeing that error in my console. Worth retesting if you can address the readAllBytes issue.</p><p class=MsoNormal>> </p><p class=MsoNormal>> I've added a warning to X3D tooltips to clarify that.</p><p class=MsoNormal>> </p><p class=MsoNormal>> Hope next round of improvement/testing can sort this one out fully.</p><p class=MsoNormal>all the best, Don</p><p class=MsoNormal>-- </p><p class=MsoNormal>Don Brutzman Naval Postgraduate School, Code USW/Br brutzman@nps.edu</p><p class=MsoNormal>Watkins 270, MOVES Institute, Monterey CA 93943-5000 USA +1.831.656.2149</p><p class=MsoNormal>X3D graphics, virtual worlds, navy robotics http://faculty.nps.edu/brutzman</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>