I added alarming properties to some opc tags within my my udt. I backed it up by exporting it as a .xml, when i tried to import the file an error message pops up saying the following:
org.xml.sax.SAXException: Error near line -1, column -1.
java.lang.NullPointerException
at com.inductiveautomation.ignition.common.xmlserialization.simple.SimpleXMLReader.endElement(SimpleXMLReader.java:182)
at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.endElement(Unknown Source)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanEndElement(Unknown Source)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(Unknown Source)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(Unknown Source)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source)
at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source)
at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source)
at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(Unknown Source)
at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(Unknown Source)
at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(Unknown Source)
at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl.parse(Unknown Source)
at com.inductiveautomation.ignition.common.xmlserialization.simple.SimpleXMLReader.parseFile(SimpleXMLReader.java:64)
at com.inductiveautomation.ignition.common.sqltags.importexport.TagXMLImporter.runImport(TagXMLImporter.java:88)
at com.inductiveautomation.ignition.designer.sqltags.action.ImportTagAction$TagImportTask.run(ImportTagAction.java:112)
at com.inductiveautomation.ignition.client.util.gui.progress.ClientProgressManager$ClientRunningTask.run(ClientProgressManager.java:544)
at com.inductiveautomation.ignition.common.execution.impl.BasicExecutionEngine$ThrowableCatchingRunnable.run(BasicExecutionEngine.java:526)
at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
at java.util.concurrent.FutureTask.run(Unknown Source)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(Unknown Source)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.NullPointerException
at com.inductiveautomation.ignition.common.sqltags.importexport.TagXMLImporter$AlarmDefElement.coerceValueFor(TagXMLImporter.java:214)
at com.inductiveautomation.ignition.common.sqltags.importexport.TagXMLImporter$PropertyBasedElement.addChild(TagXMLImporter.java:168)
at com.inductiveautomation.ignition.common.xmlserialization.simple.SimpleXMLReader.endElement(SimpleXMLReader.java:173)
… 23 more
Ignition v7.6.4 (b2013112117)
Java: Oracle Corporation 1.7.0_51
My backed up files without the alarming properties import just fine.