org.openstreetmap.josm.io.IllegalDataException: java.lang.NullPointerException
	at org.openstreetmap.josm.io.OsmReader.parseDataSet(OsmReader.java:586)
	at org.openstreetmap.josm.io.OsmImporter.importData(OsmImporter.java:42)
	at org.openstreetmap.josm.io.OsmImporter.importData(OsmImporter.java:34)
	at org.openstreetmap.josm.io.FileImporter.importDataHandleExceptions(FileImporter.java:57)
	at org.openstreetmap.josm.actions.OpenFileAction$OpenFileTask.importData(OpenFileAction.java:263)
	at org.openstreetmap.josm.actions.OpenFileAction$OpenFileTask.realRun(OpenFileAction.java:242)
	at org.openstreetmap.josm.gui.PleaseWaitRunnable.doRealRun(PleaseWaitRunnable.java:83)
	at org.openstreetmap.josm.gui.PleaseWaitRunnable.run(PleaseWaitRunnable.java:129)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
	at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
	at java.util.concurrent.FutureTask.run(FutureTask.java:166)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
	at java.lang.Thread.run(Thread.java:636)
Caused by: java.lang.NullPointerException
	at org.openstreetmap.josm.data.osm.Storage$1.getHashCode(Storage.java:317)
	at org.openstreetmap.josm.data.osm.Storage.getBucket(Storage.java:246)
	at org.openstreetmap.josm.data.osm.Storage.get(Storage.java:196)
	at org.openstreetmap.josm.io.OsmReader$Parser.intern(OsmReader.java:126)
	at org.openstreetmap.josm.io.OsmReader$Parser.startElement(OsmReader.java:273)
	at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.startElement(AbstractSAXParser.java:504)
	at com.sun.org.apache.xerces.internal.parsers.AbstractXMLDocumentParser.emptyElement(AbstractXMLDocumentParser.java:182)
	at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanStartElement(XMLDocumentFragmentScannerImpl.java:1320)
	at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(XMLDocumentFragmentScannerImpl.java:2732)
	at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(XMLDocumentScannerImpl.java:625)
	at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:488)
	at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:812)
	at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:741)
	at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:123)
	at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1208)
	at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(SAXParserImpl.java:525)
	at javax.xml.parsers.SAXParser.parse(SAXParser.java:392)
	at org.openstreetmap.josm.io.OsmReader.parseDataSet(OsmReader.java:565)
	... 13 more