Handle detached structured config sections

Author: BenCodez

SimpleAPI/src/main/java/com/bencodez/simpleapi/bukkit/config/BukkitStructuredConfigView.java

@@ -194,7 +194,9 @@ private void collectKeys(Object container, String prefix, boolean deep, Set<Stri
         Object value = literal(keys);
         if (value instanceof ConfigurationSection section) return sectionView(section);
         if (value instanceof Map<?, ?> map) {
-            return new RawMapView(map, getSection().getRoot().options().pathSeparator());
+            ConfigurationSection section = getSection();
+            org.bukkit.configuration.Configuration root = section.getRoot();
+            return new RawMapView(map, root == null ? '.' : root.options().pathSeparator());
         }
         return null;
     }

SimpleAPI/src/test/java/com/bencodez/simpleapi/tests/shared/StructuredConfigViewTest.java

@@ -1,6 +1,8 @@
 package com.bencodez.simpleapi.tests.shared;
 
 import static org.junit.jupiter.api.Assertions.*;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.when;
 
 import java.util.ArrayList;
 import java.util.Arrays;
@@ -133,6 +135,21 @@ class StructuredConfigViewTest {
         assertThrows(IllegalArgumentException.class, () -> direct.kindAt("Ambiguous", "10"));
     }
 
+    @Test void rawMapChildrenRemainUsableWhenTheBukkitSectionHasNoRoot() {
+        var detached = mock(org.bukkit.configuration.ConfigurationSection.class);
+        Map<String, Object> child = Map.of("Value", 7);
+        when(detached.getValues(false)).thenReturn(Map.of("Child", child));
+        when(detached.getDefaultSection()).thenReturn(null);
+        when(detached.getRoot()).thenReturn(null);
+
+        StructuredConfigView view = new BukkitStructuredConfigView(detached);
+        StructuredConfigView rawChild = view.structuredAt("Child");
+
+        assertNotNull(rawChild);
+        assertEquals(7, rawChild.getInt("Value", -1));
+        assertEquals(Map.of("Value", 7), rawChild.valueAt());
+    }
+
     @Test void deepRawMapKeyEnumerationRejectsCyclesAndExcessiveDepth() {
         var nativeConfig = new MemoryConfiguration();
         Map<String, Object> cyclic = new LinkedHashMap<>();