[#3985] fix(hadooop-catalog): Create fileset catalog with empty locat…

…ion property success, but can't list schema of the catalog (#4177)

### What changes were proposed in this pull request?

Check if the catalogLocation is empty when initializing

### Why are the changes needed?

Fix: #3985 

### Does this PR introduce _any_ user-facing change?

No

### How was this patch tested?

Existing pipeline.

Before
<img width="1480" alt="image"
src="https://github.com/user-attachments/assets/42003bf4-f6a2-4729-98fc-bf139a811daf">

After
<img width="865" alt="image"
src="https://github.com/user-attachments/assets/531dbc3b-7ad3-4949-8910-ea99bb31baa1">

catalogs/catalog-hadoop/src/main/java/org/apache/gravitino/catalog/hadoop/HadoopCatalogOperations.java

@@ -135,7 +135,10 @@ public void initialize(
     conf.forEach(hadoopConf::set);
 
     initAuthentication(conf, hadoopConf);
-    this.catalogStorageLocation = Optional.ofNullable(catalogLocation).map(Path::new);
+    this.catalogStorageLocation =
+        StringUtils.isNotBlank(catalogLocation)
+            ? Optional.of(catalogLocation).map(Path::new)
+            : Optional.empty();
   }
 
   private void initAuthentication(Map<String, String> conf, Configuration hadoopConf) {

catalogs/catalog-hadoop/src/test/java/org/apache/gravitino/catalog/hadoop/TestHadoopCatalogOperations.java

@@ -230,6 +230,22 @@ public void testCreateSchemaWithNoLocation() throws IOException {
     Assertions.assertEquals("Schema m1.c1.schema11 already exists", exception.getMessage());
   }
 
+  @Test
+  public void testCreateSchemaWithEmptyCatalogLocation() throws IOException {
+    String name = "schema28";
+    String comment = "comment28";
+    String catalogPath = "";
+    Schema schema = createSchema(name, comment, catalogPath, null);
+    Assertions.assertEquals(name, schema.name());
+    Assertions.assertEquals(comment, schema.comment());
+
+    Throwable exception =
+        Assertions.assertThrows(
+            SchemaAlreadyExistsException.class,
+            () -> createSchema(name, comment, catalogPath, null));
+    Assertions.assertEquals("Schema m1.c1.schema28 already exists", exception.getMessage());
+  }
+
   @Test
   public void testCreateSchemaWithCatalogLocation() throws IOException {
     String name = "schema12";