🐛 fix issue #88 error trying to create a iterator for a empty path

Author: jarnaiz

src/main/java/com/upplication/s3fs/S3Path.java

@@ -528,6 +528,10 @@ public Iterator<Path> iterator() {
         }
 
         List<String> paths = uriToList();
+
+        if (uriToList().isEmpty())
+            return builder.build().iterator();
+
         String lastPath = paths.get(paths.size() - 1);
 
         for (String path : uriToList()) {

src/test/java/com/upplication/s3fs/Path/ItearatorTest.java

@@ -14,6 +14,7 @@
 
 import static com.upplication.s3fs.util.S3EndpointConstant.S3_GLOBAL_URI_TEST;
 import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
 
 public class ItearatorTest extends S3UnitTestBase {
 
@@ -39,5 +40,11 @@ public void iterator() {
         assertEquals(getPath("file"), iterator.next());
     }
 
+    @Test
+    public void iteratorEmtpy() {
+        Iterator<Path> iterator = getPath("").iterator();
+        assertFalse(iterator.hasNext());
+    }
+
 
 }