<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><o:p> </o:p></p><p class=MsoNormal>I don’t see as fieldValueList in ProtoInstanceObject can ever be null, (It can have 0 elements), so the hasFieldValue() test will always return true, even if the ProtoInstance has 0 children. Please correct me if I am wrong.</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>Sunday, October 1, 2017 11:24 PM<br><b>To: </b><a href="mailto:yottzumm@gmail.com">John Carlson</a><br><b>Cc: </b><a href="mailto:roy.walmsley@ntlworld.com">Roy Walmsley</a>; <a href="mailto:x3d-public@web3d.org">x3d-public@web3d.org</a><br><b>Subject: </b>Re: X3DJSAIL: ProtoInstance fieldValue not an MFNode, but an SFNode.Complains!</p></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Sorry for delay, didn't understand earlier...</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>The exception reports that ProtoInstance USE='G1' is not allowed to have any contained fieldValue. USE nodes can only have a containerField attribute, no children, nothing else.</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>That said, not seeing what line in your source code caused the exception.</p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>On 9/13/2017 4:33 AM, John Carlson wrote:</p><p class=MsoNormal>> Not sure if this got sent. Resending</p><p class=MsoNormal>> </p><p class=MsoNormal>> Only one addChild in code, yet it complains about an MFNode. Why?</p><p class=MsoNormal>> </p><p class=MsoNormal>> Exception in thread "main" org.web3d.x3d.sai.InvalidFieldValueException: ProtoInstance USE='G1' is not allowed to have contained MFNode fieldValue</p><p class=MsoNormal>> </p><p class=MsoNormal>> at org.web3d.x3d.jsail.Core.ProtoInstanceObject.validate(ProtoInstanceObject.java:1165)</p><p class=MsoNormal>> </p><p class=MsoNormal>> at org.web3d.x3d.jsail.Core.fieldValueObject.validate(fieldValueObject.java:944)</p><p class=MsoNormal>> </p><p class=MsoNormal>> at org.web3d.x3d.jsail.Core.ProtoInstanceObject.addFieldValue(ProtoInstanceObject.java:1220)</p><p class=MsoNormal>> </p><p class=MsoNormal>> at jdk.nashorn.internal.scripts.Script$arc_sail.:program(net/coderextreme/data/arc.sail.js:148)</p><p class=MsoNormal>> </p><p class=MsoNormal>> at jdk.nashorn.internal.runtime.ScriptFunctionData.invoke(ScriptFunctionData.java:637)</p><p class=MsoNormal>> </p><p class=MsoNormal>> at jdk.nashorn.internal.runtime.ScriptFunction.invoke(ScriptFunction.java:494)</p><p class=MsoNormal>> </p><p class=MsoNormal>> at jdk.nashorn.internal.runtime.ScriptRuntime.apply(ScriptRuntime.java:393)</p><p class=MsoNormal>> </p><p class=MsoNormal>> at jdk.nashorn.tools.Shell.apply(Shell.java:471)</p><p class=MsoNormal>> </p><p class=MsoNormal>> at jdk.nashorn.tools.Shell.runScripts(Shell.java:400)</p><p class=MsoNormal>> </p><p class=MsoNormal>> at jdk.nashorn.tools.Shell.run(Shell.java:179)</p><p class=MsoNormal>> </p><p class=MsoNormal>> at jdk.nashorn.tools.Shell.main(Shell.java:143)</p><p class=MsoNormal>> </p><p class=MsoNormal>> at jdk.nashorn.tools.Shell.main(Shell.java:119)</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>