Index: /applications/editors/josm/plugins/rasterfilters/src/org/openstreetmap/josm/plugins/rasterfilters/RasterFiltersPlugin.java
===================================================================
--- /applications/editors/josm/plugins/rasterfilters/src/org/openstreetmap/josm/plugins/rasterfilters/RasterFiltersPlugin.java	(revision 31508)
+++ /applications/editors/josm/plugins/rasterfilters/src/org/openstreetmap/josm/plugins/rasterfilters/RasterFiltersPlugin.java	(revision 31509)
@@ -43,5 +43,5 @@
 
 			// opening file with last user's settings
-			file = new File(file.getAbsoluteFile() + "\\urls.map");
+			file = new File(file.getAbsoluteFile(), "urls.map");
 			if (!file.exists()) {
 				try {
Index: /applications/editors/josm/plugins/rasterfilters/src/org/openstreetmap/josm/plugins/rasterfilters/preferences/FiltersDownloader.java
===================================================================
--- /applications/editors/josm/plugins/rasterfilters/src/org/openstreetmap/josm/plugins/rasterfilters/preferences/FiltersDownloader.java	(revision 31508)
+++ /applications/editors/josm/plugins/rasterfilters/src/org/openstreetmap/josm/plugins/rasterfilters/preferences/FiltersDownloader.java	(revision 31509)
@@ -220,5 +220,5 @@
 
 	public static void initFilters() {
-		File file = new File(pluginDir + "\\urls.map");
+		File file = new File(pluginDir, "urls.map");
 		Main.debug("EXIST FILE? " + file.exists());
 
@@ -286,5 +286,5 @@
 	public static void loadBinariesFromMeta(Set<JsonObject> metaList) {
 
-		File file = new File(pluginDir + "\\urls.map");
+		File file = new File(pluginDir, "urls.map");
 
 		FileWriter fileWriter = null;
@@ -338,12 +338,11 @@
 
 		String localFile = null;
+		File plugin = new File(pluginDir);
 
 		if (m.find()) {
 
-			File plugin = new File(pluginDir);
 			if (plugin.exists()) {
 
-				String plugDir = plugin.getAbsolutePath();
-				localFile = plugDir + "\\" + fromUrl.substring(m.end());
+				localFile = fromUrl.substring(m.end());
 
 			}
@@ -353,5 +352,6 @@
 			url = new URL(fromUrl);
 			con = url.openConnection();
-			File file = new File(localFile);
+			String plugDir = plugin.getAbsolutePath();
+			File file = new File(plugDir, localFile);
 
 			if (file.exists()) {