[x3d-public] X3DJSAIL, X3dToJava.xslt and DOMX3DLoaderObjecttesting:anotherClassCastException
Don Brutzman
brutzman at nps.edu
Thu Jun 7 20:44:14 PDT 2018
Sorry but no, advancing a version in Java is a slippery slope if everything can't advance together. Am holding at JDK 8 until Netbeans (and thus X3D-Edit) gets upgraded to JDK 9 or 10.
On 6/6/2018 4:07 PM, John Carlson wrote:
> Full script under OpenJDK 8, Ubuntu on Windows 10. Log attached. The readAllBytes issue will be fixed by Java 9. Is there a way to set your ant
> JDK to JDK 9 inside NetBeans? Wondering.
>
> John
>
> $ 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/
>
> # use ; instead of : in command prompt and git bash
>
> $ jjs -J-Djava.class.path=jars/X3DJSAIL.3.3.full.jar:classes nashorn/examples/Json.js
>
> $ diff -w nashorn/examples/HelloWorldProgramOutput.Java.x3d nashorn/examples/Json.x3d
>
> You should be able to duplicate the error with JDK 8 this way. Command prompt will differ slightly.
>
> John
>
> Sent from Mail <https://go.microsoft.com/fwlink/?LinkId=550986> for Windows 10
>
> *From: *John Carlson <mailto:yottzumm at gmail.com>
> *Sent: *Wednesday, June 6, 2018 6:06 PM
> *To: *Don Brutzman <mailto:brutzman at nps.edu>
> *Cc: *x3d-public at web3d.org <mailto:x3d-public at web3d.org>
> *Subject: *RE: X3DJSAIL, X3dToJava.xslt and DOMX3DLoaderObjecttesting:anotherClassCastException
>
> Under OpenJDK 8 on Ubuntu under windows, the jjs command is:
>
> $ jjs -J-Djava.class.path=jars/X3DJSAIL.3.3.full.jar:classes nashorn/examples/Json.js
>
> And the cd command is:
>
> $ cd /mnt/c/x3d-code/www.web3d.org/x3d/stylesheets/java/
>
> Sent from Mail <https://go.microsoft.com/fwlink/?LinkId=550986> for Windows 10
>
> *From: *John Carlson <mailto:yottzumm at gmail.com>
> *Sent: *Wednesday, June 6, 2018 5:37 PM
> *To: *Don Brutzman <mailto:brutzman at nps.edu>
> *Cc: *x3d-public at web3d.org <mailto:x3d-public at web3d.org>
> *Subject: *RE: X3DJSAIL, X3dToJava.xslt and DOM X3DLoaderObjecttesting:anotherClassCastException
>
> 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)
>
> $ cd /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 -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
>
> $ diff -w nashorn/examples/HelloWorldProgramOutput.Java.x3d nashorn/examples/Json.x3d
>
> 32a33,35
>
> > <meta name='translated' content='27 May 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'/>
>
> You will see the missing Viewpoint’s (children of ViewpointGroup) as above. Also jjs will generate significant output.
>
> I can’t connect through svn, so I may be out of date.
>
> John
>
> Sent from Mail <https://go.microsoft.com/fwlink/?LinkId=550986> for Windows 10
>
> *From: *Don Brutzman <mailto:brutzman at nps.edu>
> *Sent: *Wednesday, June 6, 2018 9:41 AM
> *To: *John Carlson <mailto:yottzumm at gmail.com>
> *Cc: *x3d-public at web3d.org <mailto:x3d-public at web3d.org>
> *Subject: *Re: X3DJSAIL, X3dToJava.xslt and DOM X3DLoaderObject testing:anotherClassCastException
>
> 1. Hi John, finally getting back to this one.
>
> On 4/30/2018 3:15 PM, John Carlson wrote:
>
> > Previously reported problem, now assigned to the X3DLoaderObject, I believe.
>
> >
>
> > No Viewpoint children in X3D or JSON output.
>
> Not sure what that means? Viewpoint node typically does not have any children, except perhaps for a Metadata* node or an IS/connect.
>
> > 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.
>
> >
>
> > Can be regenerated by running `ant test.nashorn` in x3d-code/www.web3d.org/x3d/stylesheets/java
>
> >
>
> > See output in nashorn/examples/Json.{json,x3d}
>
> >
>
> > John
>
> OK have recently updated to Java JDK 1.8.0_172 and adjusted PATH to confirm jjs is running OK.
>
> Have also synchronized X3DJSAIL sudirectory nashorn/ and contents with subversion.
>
> I get the following outputs when running test.nashorn build target:
>
> ============================================================
>
> ant -f E:\\x3d-code\\www.web3d.org\\x3d\\stylesheets\\java test.nashorn
>
> test.nashorn:
>
> ===========================================
>
> ant nashorn/build.xml test.nashorn
>
> X3D Nashorn SAI Library.test.nashorn:
>
> Compile:
>
> Compiling 1 source file to E:\x3d-code\www.web3d.org\x3d\stylesheets\java\classes
>
> Compiling 1 source file to E:\x3d-code\www.web3d.org\x3d\stylesheets\java\classes
>
> Copy:
>
> Copying 1 file to E:\x3d-code\www.web3d.org\x3d\stylesheets\java\nashorn\examples
>
> 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
>
> Copying 1 file to E:\x3d-code\www.web3d.org\x3d\stylesheets\java\nashorn\examples
>
> 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
>
> Run:
>
> parameter: source file HelloWorldProgramOutput.x3d filesize 20956 bytes, parsed using Document Object Model (DOM) X3DLoader
>
> parameter: "-tojs" for conversion to X3DJSONLD JavaScript source
>
> parameter: "-toFile" "nashorn/examples/HelloWorldProgramOutput.Nashorn.js" for result file name root nashorn/examples/HelloWorldProgramOutput.Nashorn
>
> convert to JS JavaScript:
>
> Warning: toFileJavaScript() is overwriting prior file nashorn/examples/HelloWorldProgramOutput.Nashorn.js
>
> 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
>
> TypeError: input.readAllBytes is not a function
>
> Error: Cannot read file [E:\x3d-code\www.web3d.org\x3d\stylesheets\java\nashorn\node_modules\xmldom\package.json]:
>
> [Error] TODO problem handling local exception within CommandLine, exiting
>
> 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
>
> at org.web3d.x3d.jsail.Core.X3DObject.toFileJavaScript(X3DObject.java:1662)
>
> at org.web3d.x3d.jsail.CommandLine.run(CommandLine.java:628)
>
> at org.web3d.x3d.jsail.CommandLine.main(CommandLine.java:163)
>
> parameter: source file HelloWorldProgramOutput.x3d filesize 20956 bytes, parsed using Document Object Model (DOM) X3DLoader
>
> parameter: "-toJSON" for conversion to JSON encoding
>
> parameter: "-toFile" "nashorn/examples/HelloWorldProgramOutput.Java.json" for result file name root nashorn/examples/HelloWorldProgramOutput.Java
>
> convert to JSON:
>
> Warning: toFileStylesheetConversion(X3dToJson.xslt) is overwriting prior file nashorn/examples/HelloWorldProgramOutput.Java.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
>
> file conversion successful: HelloWorldProgramOutput.Java.json (39749 bytes)
>
> parameter: source file HelloWorldProgramOutput.x3d filesize 20956 bytes, parsed using Document Object Model (DOM) X3DLoader
>
> parameter: "-toX3D" for conversion to X3D encoding
>
> parameter: "-toFile" "nashorn/examples/HelloWorldProgramOutput.Java.x3d" for result file name root nashorn/examples/HelloWorldProgramOutput.Java
>
> convert to X3D:
>
> Warning: toFileX3D() is overwriting prior file nashorn/examples/HelloWorldProgramOutput.Java.x3d
>
> file conversion successful: HelloWorldProgramOutput.Java.x3d (20956 bytes)
>
> ===========================================
>
> ============================================================
>
> As you can see, the exception is in nashorn/jvm-npm.js:
>
> TypeError: input.readAllBytes is not a function
>
> Header in that file indicates that you have modified it.
>
> Specific javascript code block of interest:
>
> function readFile (filename, core) {
>
> var input;
>
> try {
>
> if (core) {
>
> var classloader = java.lang.Thread.currentThread().getContextClassLoader();
>
> input = classloader.getResourceAsStream(filename);
>
> } else {
>
> input = new java.io.FileInputStream(filename);
>
> }
>
> return new java.lang.String(input.readAllBytes());
>
> } catch (e) {
>
> System.err.println(e);
>
> throw new ModuleError('Cannot read file [' + filename + ']: ', 'IO_ERROR', e);
>
> }
>
> }
>
> 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.)
>
> https://docs.oracle.com/javase/8/docs/api/java/io/FileInputStream.html
>
> So it looks like you need another method.
>
> A search for "java.io.FileInputStream readAllBytes" provides a number of hits. For example:
>
> File to byte[] in Java
>
> https://stackoverflow.com/questions/858980/file-to-byte-in-java
>
> 2. Continuing with your prior error console also appears fruitful:
>
> > [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
>
> >
>
> > [exec] java.lang.ClassCastException: org.web3d.x3d.jsail.Navigation.ViewpointGroupObject cannot be cast to org.web3d.x3d.sai.Grouping.X3DGroupingNode
>
> >
>
> > [exec] at org.web3d.x3d.jsail.X3DLoaderObject.toX3dObjectTree(X3DLoaderObject.java:1146)
>
> >
>
> > [exec] at org.web3d.x3d.jsail.X3DLoaderObject.toX3dObjectTree(X3DLoaderObject.java:542)
>
> >
>
> > [exec] at org.web3d.x3d.jsail.X3DLoaderObject.toX3dObjectTree(X3DLoaderObject.java:542)
>
> >
>
> > [exec] at org.web3d.x3d.jsail.X3DLoaderObject.toX3dObjectTree(X3DLoaderObject.java:430)
>
> >
>
> > [exec] at org.web3d.x3d.jsail.X3DLoaderObject.toX3dObjectTree(X3DLoaderObject.java:399)
>
> >
>
> > [exec] at jdk.scripting.nashorn.scripts/jdk.nashorn.internal.scripts.Script$Recompilation$372$Json$cu1$restOf.:program(nashorn/examples/Json.js:15)
>
> >
>
> > [exec] at jdk.scripting.nashorn/jdk.nashorn.internal.runtime.ScriptFunctionData.invoke(ScriptFunctionData.java:655)
>
> >
>
> > [exec] at jdk.scripting.nashorn/jdk.nashorn.internal.runtime.ScriptFunction.invoke(ScriptFunction.java:513)
>
> >
>
> > [exec] at jdk.scripting.nashorn/jdk.nashorn.internal.runtime.ScriptRuntime.apply(ScriptRuntime.java:527)
>
> >
>
> > [exec] at jdk.scripting.nashorn/jdk.nashorn.tools.Shell.apply(Shell.java:519)
>
> >
>
> > [exec] at jdk.scripting.nashorn/jdk.nashorn.tools.Shell.runScripts(Shell.java:448)
>
> >
>
> > [exec] at jdk.scripting.nashorn/jdk.nashorn.tools.Shell.run(Shell.java:186)
>
> >
>
> > [exec] at jdk.scripting.nashorn.shell/jdk.nashorn.tools.jjs.Main.main(Main.java:104)
>
> >
>
> > [exec] at jdk.scripting.nashorn.shell/jdk.nashorn.tools.jjs.Main.main(Main.java:80)
>
> 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.
>
> 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.
>
> I've added a warning to X3D tooltips to clarify that.
>
> Hope next round of improvement/testing can sort this one out fully.
>
> all the best, Don
>
> --
>
> Don Brutzman Naval Postgraduate School, Code USW/Br brutzman at nps.edu
>
> Watkins 270, MOVES Institute, Monterey CA 93943-5000 USA +1.831.656.2149
>
> X3D graphics, virtual worlds, navy robotics http://faculty.nps.edu/brutzman
>
all the best, Don
--
Don Brutzman Naval Postgraduate School, Code USW/Br brutzman at nps.edu
Watkins 270, MOVES Institute, Monterey CA 93943-5000 USA +1.831.656.2149
X3D graphics, virtual worlds, navy robotics http://faculty.nps.edu/brutzman
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