Index: /applications/editors/josm/plugins/opendata/src/org/openstreetmap/josm/plugins/opendata/core/util/OdUtils.java
===================================================================
--- /applications/editors/josm/plugins/opendata/src/org/openstreetmap/josm/plugins/opendata/core/util/OdUtils.java	(revision 32789)
+++ /applications/editors/josm/plugins/opendata/src/org/openstreetmap/josm/plugins/opendata/core/util/OdUtils.java	(revision 32790)
@@ -5,4 +5,5 @@
 import java.io.FilenameFilter;
 import java.io.IOException;
+import java.nio.file.Files;
 import java.util.ArrayList;
 import java.util.List;
@@ -87,15 +88,5 @@
 
     public static final File createTempDir() throws IOException {
-        final File temp = File.createTempFile(TEMP_DIR_PREFIX, Long.toString(System.nanoTime()));
-
-        if (!temp.delete()) {
-            throw new IOException("Could not delete temp file: " + temp.getAbsolutePath());
-        }
-
-        if (!temp.mkdir()) {
-            throw new IOException("Could not create temp directory: " + temp.getAbsolutePath());
-        }
-
-        return temp;
+        return Files.createTempDirectory(TEMP_DIR_PREFIX).toFile();
     }