Index: applications/editors/josm/plugins/opendata/src/org/openstreetmap/josm/plugins/opendata/core/io/NetworkReader.java
===================================================================
--- applications/editors/josm/plugins/opendata/src/org/openstreetmap/josm/plugins/opendata/core/io/NetworkReader.java	(revision 35279)
+++ applications/editors/josm/plugins/opendata/src/org/openstreetmap/josm/plugins/opendata/core/io/NetworkReader.java	(revision 35330)
@@ -14,4 +14,5 @@
 import org.openstreetmap.josm.gui.progress.ProgressMonitor;
 import org.openstreetmap.josm.io.AbstractReader;
+import org.openstreetmap.josm.io.Compression;
 import org.openstreetmap.josm.io.GeoJSONReader;
 import org.openstreetmap.josm.io.OsmServerReader;
@@ -128,4 +129,12 @@
         }
         return null;
+    }
+
+    @Override
+    public DataSet parseOsm(ProgressMonitor progressMonitor, Compression compression) throws OsmTransferException {
+        if (compression != Compression.NONE) {
+            Logging.warn("FIXME: unhandled compression"); // FIXME
+        }
+        return parseOsm(progressMonitor);
     }