<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>Likely there’s an easy reason. Sorry I haven’t had more opportunity to look at this. I am working on something else.</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, February 15, 2017 8:32 PM<br><b>To: </b><a href="mailto:yottzumm@gmail.com">yottzumm@gmail.com</a><br><b>Cc: </b><a href="mailto:x3d-public@web3d.org">X3D Graphics public mailing list</a><br><b>Subject: </b>Re: ClassCastException in X3DJSAIL. Probably okay, since it's a testprogram.</p></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>please send .java program, TIA</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>am guessing that maybe you didn't use setMetadata method on Appearance? two forms are available:</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal> http://www.web3d.org/specifications/java/javadoc/org/web3d/x3d/jsail/Shape/AppearanceObject.html#setMetadata-org.web3d.x3d.sai.Core.X3DMetadataObject-</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal> http://www.web3d.org/specifications/java/javadoc/org/web3d/x3d/jsail/Shape/AppearanceObject.html#setMetadata-org.web3d.x3d.jsail.Core.ProtoInstanceObject-</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>On 2/15/2017 4:41 PM, yottzumm@gmail.com wrote:</p><p class=MsoNormal>> www.web3d.org/x3d/content/examples/Basic/development/SchemaTest.json</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>or, more likely from scene head/meta information:</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>{</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal> "@name": "description",</p><p class=MsoNormal> "@content": "Test scene for obscure schema validation cases."</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>},</p><p class=MsoNormal>{</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal> "@name": "error",</p><p class=MsoNormal> "@content": "Test scene that does not render or validate."</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>},</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal> http://www.web3d.org/x3d/content/examples/Basic/development/SchemaTestIndex.html</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>X3D validator finds many things wrong:</p><p class=MsoNormal> </p><p class=MsoNormal> https://savage.nps.edu/X3dValidator?url=http://www.web3d.org/x3d/content/examples/Basic/development/SchemaTest.x3d</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>hmm, can you figure out a way to link a scene url into a json validator url? for example, something that combines</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal> http://jsonlint.com/</p><p class=MsoNormal>with</p><p class=MsoNormal> http://www.web3d.org/x3d/content/examples/Basic/development/SchemaTest.json</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>if so, i can add such validation-convenience links to each index page in the archives...</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>> java.lang.ClassCastException: org.web3d.x3d.jsail.Core.MetadataIntegerObject cannot be cast to org.web3d.x3d.sai.Core.X3DNode^M</p><p class=MsoNormal>><o:p> </o:p></p><p class=MsoNormal>> at org.web3d.x3d.jsail.Core.MetadataSetObject.getValue(MetadataSetObject.java:427)^M</p><p class=MsoNormal>><o:p> </o:p></p><p class=MsoNormal>> at org.web3d.x3d.jsail.Core.MetadataSetObject.validate(MetadataSetObject.java:1102)^M</p><p class=MsoNormal>><o:p> </o:p></p><p class=MsoNormal>> at org.web3d.x3d.jsail.Shape.AppearanceObject.validate(AppearanceObject.java:1630)^M</p><p class=MsoNormal>><o:p> </o:p></p><p class=MsoNormal>> at org.web3d.x3d.jsail.Shape.ShapeObject.validate(ShapeObject.java:1153)^M</p><p class=MsoNormal>><o:p> </o:p></p><p class=MsoNormal>> at org.web3d.x3d.jsail.Core.SceneObject.validate(SceneObject.java:522)^M</p><p class=MsoNormal>><o:p> </o:p></p><p class=MsoNormal>> at org.web3d.x3d.jsail.Core.X3DObject.validate(X3DObject.java:1603)^M</p><p class=MsoNormal>><o:p> </o:p></p><p class=MsoNormal>> at org.web3d.x3d.jsail.Core.X3DObject.toFileJSON(X3DObject.java:725)^M</p><p class=MsoNormal>><o:p> </o:p></p><p class=MsoNormal>> at www_web3d_org.x3d.content.examples.Basic.development.SchemaTest.main(SchemaTest.java:262)^M</p><p class=MsoNormal>><o:p> </o:p></p><p class=MsoNormal>> Exception in thread "main" java.lang.ClassCastException: org.web3d.x3d.jsail.Core.MetadataIntegerObject cannot be cast to org.web3d.x3d.sai.Core.X3DNode^M</p><p class=MsoNormal>><o:p> </o:p></p><p class=MsoNormal>> at org.web3d.x3d.jsail.Core.MetadataSetObject.getValue(MetadataSetObject.java:427)^M</p><p class=MsoNormal>><o:p> </o:p></p><p class=MsoNormal>> at org.web3d.x3d.jsail.Core.MetadataSetObject.validate(MetadataSetObject.java:1102)^M</p><p class=MsoNormal>><o:p> </o:p></p><p class=MsoNormal>> at org.web3d.x3d.jsail.Shape.AppearanceObject.validate(AppearanceObject.java:1630)^M</p><p class=MsoNormal>><o:p> </o:p></p><p class=MsoNormal>> at org.web3d.x3d.jsail.Shape.ShapeObject.validate(ShapeObject.java:1153)^M</p><p class=MsoNormal>><o:p> </o:p></p><p class=MsoNormal>> at org.web3d.x3d.jsail.Core.SceneObject.validate(SceneObject.java:522)^M</p><p class=MsoNormal>><o:p> </o:p></p><p class=MsoNormal>> at org.web3d.x3d.jsail.Core.X3DObject.validate(X3DObject.java:1603)^M</p><p class=MsoNormal>><o:p> </o:p></p><p class=MsoNormal>> at org.web3d.x3d.jsail.Core.X3DObject.toFileJSON(X3DObject.java:725)^M</p><p class=MsoNormal>><o:p> </o:p></p><p class=MsoNormal>> at www_web3d_org.x3d.content.examples.Basic.development.SchemaTest.main(SchemaTest.java:262)^M</p><p class=MsoNormal><o:p> </o:p></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></div></body></html>