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Compile SDK from Source
April 11, 2015
22:19, EEST
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hbrackel
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I’m trying to compile the SDK from the sources into a jar. All works well until I’m trying to launch an UaServer built with the compiled jar. Running a server results in an exception, as the NodeManagerRoot class can’t find the Opc.Ua.Nodeset2.xml. The xml is in the same directory as the NodeManagerRoot.class file.

After copying the xml’s into a dedicated resource directory (maven project layout) and changing the loadPath to “/Opc.Ua.NodeSet2.xml” (leading slash) everything functions as expected.

Does the SDK rely on a special classLoader or does the originally provided jar change the loadPath in some initialization?

Thanks,
Hans-Uwe

**********
2015-04-11 23:59:03.614 ERROR [main] com.prosysopc.ua.server.NodeManagerRoot – RuntimeException from init():
java.lang.NullPointerException
at com.prosysopc.ua.server.NodeManagerRoot.loadUaNodeSet2Xml(NodeManagerRoot.java:348)
at com.prosysopc.ua.server.NodeManagerRoot.init(NodeManagerRoot.java:508)
at com.prosysopc.ua.server.NodeManagerTable.init(NodeManagerTable.java:2738)
at com.prosysopc.ua.server.NodeManagementServiceHandler.init(NodeManagementServiceHandler.java:1053)
at com.prosysopc.ua.server.UaServer.initServiceHandlers(UaServer.java:2524)
at com.prosysopc.ua.server.UaServer.init(UaServer.java:1194)

April 13, 2015
8:57, EEST
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Jouni Aro
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No, there is nothing special: this is how it tries to find the XML:

NodeManagerRoot.class.getResource("Opc.Ua.NodeSet2.xml").toURI()

Which obviously gives the NPE, if the file is not found.

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