diff --git a/src/main/java/org/openstreetmap/josm/plugins/mapwithai/backend/DataConflationSender.java b/src/main/java/org/openstreetmap/josm/plugins/mapwithai/backend/DataConflationSender.java
index e194827..0ac424e 100644
--- a/src/main/java/org/openstreetmap/josm/plugins/mapwithai/backend/DataConflationSender.java
+++ b/src/main/java/org/openstreetmap/josm/plugins/mapwithai/backend/DataConflationSender.java
@@ -68,7 +68,7 @@ public class DataConflationSender implements RunnableFuture<DataSet> {
     @Override
     public void run() {
         String url = MapWithAIConflationCategory.conflationUrlFor(category);
-        if (!Utils.isBlank(url) && !NetworkManager.isOffline(url)) {
+        if (!Utils.isStripEmpty(url) && !NetworkManager.isOffline(url)) {
             this.client = HttpClient.newBuilder().connectTimeout(Duration.ofSeconds(10)).build();
             try {
                 final var form = new TreeMap<String, String>();
diff --git a/src/main/java/org/openstreetmap/josm/plugins/mapwithai/backend/GetDataRunnable.java b/src/main/java/org/openstreetmap/josm/plugins/mapwithai/backend/GetDataRunnable.java
index 96a1edb..697b2cd 100644
--- a/src/main/java/org/openstreetmap/josm/plugins/mapwithai/backend/GetDataRunnable.java
+++ b/src/main/java/org/openstreetmap/josm/plugins/mapwithai/backend/GetDataRunnable.java
@@ -403,7 +403,7 @@ public class GetDataRunnable extends RecursiveTask<DataSet> {
                 .map(entry -> new Pair<>(Tag.ofString(entry.getKey()), Tag.ofString(entry.getValue())))
                 .collect(Collectors.toMap(pair -> pair.a, pair -> pair.b));
         MapWithAIPreferenceHelper.getReplacementTags().entrySet().stream()
-                .filter(entry -> !entry.getKey().equals(EQUALS) && Utils.isBlank(entry.getValue()))
+                .filter(entry -> !entry.getKey().equals(EQUALS) && Utils.isStripEmpty(entry.getValue()))
                 .map(entry -> new Tag(entry.getKey(), null)).forEach(tag -> replaceTags.put(tag, tag));
         replaceTags(dataSet, replaceTags);
     }
@@ -417,7 +417,7 @@ public class GetDataRunnable extends RecursiveTask<DataSet> {
     public static void replaceTags(DataSet dataSet, Map<Tag, Tag> replaceTags) {
         replaceTags.forEach((orig, replace) -> dataSet.allNonDeletedPrimitives().stream()
                 .filter(prim -> prim.hasTag(orig.getKey(), orig.getValue())
-                        || (prim.hasKey(orig.getKey()) && Utils.isBlank(orig.getValue())))
+                        || (prim.hasKey(orig.getKey()) && Utils.isStripEmpty(orig.getValue())))
                 .forEach(prim -> prim.put(replace)));
     }
 
diff --git a/src/main/java/org/openstreetmap/josm/plugins/mapwithai/backend/MapWithAIDataUtils.java b/src/main/java/org/openstreetmap/josm/plugins/mapwithai/backend/MapWithAIDataUtils.java
index f7ec2e3..c5977de 100644
--- a/src/main/java/org/openstreetmap/josm/plugins/mapwithai/backend/MapWithAIDataUtils.java
+++ b/src/main/java/org/openstreetmap/josm/plugins/mapwithai/backend/MapWithAIDataUtils.java
@@ -128,7 +128,7 @@ public final class MapWithAIDataUtils {
                             realBounds.size() * urls.size());
                     for (var bound : realBounds) {
                         for (var url : urls) {
-                            if (url.getUrl() != null && !Utils.isBlank(url.getUrl())) {
+                            if (url.getUrl() != null && !Utils.isStripEmpty(url.getUrl())) {
                                 final var ds = download(monitor, bound, url, maximumDimensions);
                                 downloadedDataSets.add(ds);
                                 MapWithAIDataUtils.getForkJoinPool().execute(ds);