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Problems with Java SDK 32 bit
May 20, 2014
13:06, EEST
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matteo.leggieri
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Hi all,
I’m evaluating OPC UA Java SDK and I encountered a problem using a JDK 32 bit, precisely Java SE Runtime Environment build 1.6.0-b105.

I’m using Netbeans to run SampleConsoleServer and running sample I get an Excepiton with the following stack trace:
java.lang.NullPointerException
at javax.xml.bind.DatatypeConverter.parseBase64Binary(DatatypeConverter.java:296)
at org.opcfoundation.ua.encoding.xml.XmlDecoder.getByteString(Unknown Source)
at org.opcfoundation.ua.encoding.xml.XmlDecoder.getVariantContents(Unknown Source)
at org.opcfoundation.ua.encoding.xml.XmlDecoder.getVariant(Unknown Source)
at com.prosysopc.ua.ModelParserBase.endElement(Unknown Source)
at com.prosysopc.ua.ModelParserBase$b.endElement(Unknown Source)
at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.endElement(AbstractSAXParser.java:601)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanEndElement(XMLDocumentFragmentScannerImpl.java:1772)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(XMLDocumentFragmentScannerImpl.java:2923)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(XMLDocumentScannerImpl.java:645)
at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.next(XMLNSDocumentScannerImpl.java:140)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:508)
at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:807)
at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:737)
at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:107)
at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1205)
at com.prosysopc.ua.ModelParserBase.parseFile(Unknown Source)
at com.prosysopc.ua.server.NodeManagerTable.loadModel(Unknown Source)
at com.prosysopc.ua.server.NodeManagerRoot.a(Unknown Source)
at com.prosysopc.ua.server.NodeManagerRoot.init(Unknown Source)
at com.prosysopc.ua.server.NodeManagerTable.init(Unknown Source)
at com.prosysopc.ua.server.NodeManagementServiceHandler.a(Unknown Source)
at com.prosysopc.ua.server.UaServer.initServiceHandlers(Unknown Source)
at com.prosysopc.ua.server.UaServer.init(Unknown Source)
at com.byautoma.opc.samples.server.SampleConsoleServer.initialize(SampleConsoleServer.java:1196)
at com.byautoma.opc.samples.server.SampleConsoleServer.main(SampleConsoleServer.java:173)

It seems a problem related to method used for a 64 bit system, in fact if I use JDK SE 1.7.0_2-b13 which is a 64 bit version I did not encounter the problem.
Is OPC UA Java SDK only compatible with 64 bit java version? If not, where I’m wrong?

Thanks.

May 20, 2014
14:59, EEST
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Bjarne Boström
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Hi,

The SDK works with both as it doesn’t use any native code libraries (normal Java bytecode is the same for 32 and 64 bit). As the error comes from outside the SDK (the javax.xml…. is in the Java API), I would assume this is a bug with that JRE/JDK version. The Java version 1.6.0-b105 is something like 6 years old and to my knowledge the first release of Java 6, so probably this has beed fixed in some later update.

June 6, 2014
15:26, EEST
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matteo.leggieri
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Hi Bjarne,
thanks for reply.

I see it now because I did not receive an email notification about your reply.
Is it normal or there is some setting in my profile?

June 9, 2014
11:24, EEST
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Jouni Aro
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Unfortunately, the current forum does not send any email notifications. You can use the RSS feed (Topic RSS above, All RSS below) to watch for the forum, though.

June 10, 2014
9:59, EEST
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matteo.leggieri
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Ok for email notification. Now I’m monitoring forum without using RSS. If I will need in future I will use it.

For my exception problem, in fact Java 7 (32 bit) solved it.

Thanks.

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