nastra commented on a change in pull request #3688:
URL: https://github.com/apache/iceberg/pull/3688#discussion_r764840556



##########
File path: api/src/test/java/org/apache/iceberg/catalog/TestTableIdentifier.java
##########
@@ -60,11 +60,11 @@ public void testToLowerCase() {
   public void testInvalidTableName() {
     Assertions.assertThatThrownBy(() -> TableIdentifier.of(Namespace.empty(), 
""))
         .isInstanceOf(IllegalArgumentException.class)
-        .hasMessage("Invalid table name: null or empty");
+        .hasMessage("Invalid table name: empty");
 
     Assertions.assertThatThrownBy(() -> TableIdentifier.of(Namespace.empty(), 
null))
-        .isInstanceOf(IllegalArgumentException.class)
-        .hasMessage("Invalid table name: null or empty");
+        .isInstanceOf(NullPointerException.class)

Review comment:
       alternatively, we could add `@Value.Style(throwForNullPointer = 
IllegalArgumentException.class)` to throw an IAE for nulls




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