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java.lang.NullPointerException at net.osmand.binary.CachedOsmandIndexes.writeToFile(CachedOsmandIndexes.java:326) at net.osmand.swing.OsmExtractionUI.createUI(OsmExtractionUI.java:232) at net.osmand.swing.OsmExtractionUI.<init>(OsmExtractionUI.java:167) at net.osmand.swing.OsmExtractionUI.main(OsmExtractionUI.java:129)