Toml#getList() returns null if key is missing

src/main/java/com/moandjiezana/toml/Toml.java

@@ -153,16 +153,12 @@ public class Toml {
   /**
    * @param key a TOML key
    * @param <T> type of list items
-   * @return an empty {@link List} if the key is not found
+   * @return <code>null</code> if the key is not found
    */
   public <T> List<T> getList(String key) {
     @SuppressWarnings("unchecked")
     List<T> list = (List<T>) get(key);
-
-    if (list == null) {
-      return Collections.emptyList();
-    }
-
+    
     return list;
   }
 
@@ -170,13 +166,12 @@ public class Toml {
    * @param key a TOML key
    * @param defaultValue a list of default values
    * @param <T> type of list items
-   * @return an empty {@link List} is the key is not found
+   * @return <code>null</code> is the key is not found
    */
   public <T> List<T> getList(String key, List<T> defaultValue) {
-    @SuppressWarnings("unchecked")
-    List<T> val = (List<T>) get(key);
+    List<T> list = getList(key);
     
-    return val != null ? val : defaultValue;
+    return list != null ? list : defaultValue;
   }
 
   public Boolean getBoolean(String key) {

src/test/java/com/moandjiezana/toml/ArrayTest.java

@@ -4,8 +4,8 @@ import static java.util.Arrays.asList;
 import static org.hamcrest.Matchers.contains;
 import static org.hamcrest.Matchers.hasSize;
 import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNull;
 import static org.junit.Assert.assertThat;
-import static org.junit.Assert.assertTrue;
 
 import java.io.File;
 import java.util.Arrays;
@@ -25,10 +25,10 @@ public class ArrayTest {
   }
 
   @Test
-  public void should_return_empty_list_if_no_value_for_key() throws Exception {
+  public void should_return_null_if_no_value_for_key() throws Exception {
     Toml toml = new Toml().parse("");
 
-    assertTrue(toml.<String>getList("a").isEmpty());
+    assertNull(toml.getList("a"));
   }
 
   @Test

src/test/java/com/moandjiezana/toml/TableTest.java

@@ -1,9 +1,7 @@
 package com.moandjiezana.toml;
 
-import static org.hamcrest.Matchers.hasSize;
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertNull;
-import static org.junit.Assert.assertThat;
 import static org.junit.Assert.assertTrue;
 
 import org.junit.Test;
@@ -61,7 +59,7 @@ public class TableTest {
     
     assertNull(toml.getString("a.b"));
     assertNull(toml.getString("a.b[0].c"));
-    assertThat(toml.getList("a.b"), hasSize(0));
+    assertNull(toml.getList("a.b"));
     assertTrue(toml.getTable("a.b").isEmpty());
     assertTrue(toml.getTable("a.b[0]").isEmpty());
   }