fix on issu #44 from main branch

annotation/src/main/java/lcsb/mapviewer/annotation/cache/BigFileCache.java

@@ -154,7 +154,7 @@ public class BigFileCache {
 			throw new FileNotFoundException("Missing big file: " + Configuration.getWebAppDir() + entry.getLocalPath() + ". Downloaded from: " + url);
 		}
 
-		return entry.getLocalPath();
+		return f.getAbsolutePath();
 	}
 
 	/**