fix: Handle databases that do not support user-defined types

Add a null check to prevent NullPointerException when a database does not support user-defined data types.

build.gradle.kts

@@ -5,7 +5,7 @@ plugins {
 }
 
 group = "com.sdk.generators.actionmodels"
-version = "1.1.0"
+version = "1.1.2"
 
 repositories {
   mavenCentral()
@@ -39,6 +39,15 @@ intellijPlatform {
     changeNotes = """
       ## Release Notes
 
+      ## [1.1.2]
+      fix: Update plugin version display
+      Corrected the plugin version display in the IDE.
+
+      ## [1.1.1]
+      fix: Correctly generate primary keys
+      The generator was failing to identify primary key columns, resulting in generated beans without them. This has been fixed by updating the code to use the `getColumnsRef()` method, which correctly retrieves the column names for the primary key.
+
+      ## [1.1.0]
       ### New Features and Enhancements
 
       *   **DTO Generation:** Introduced new functionality to generate Data Transfer Object (DTO) classes alongside ActionBeans. This includes new FreeMarker templates (`actionDTO.ftl`, `actionDTO.extend.ftl`) and updated logic in `GeneratorServices.java`.
@@ -49,7 +58,7 @@ intellijPlatform {
       *   **Project Structure Refactoring:** The project structure has been reorganized. Generator-related classes were moved to a new package (`com.sdk.generators.actionmodels`), and template directory names were standardized to `src/main/resources/templates`.
       *   **Build System Updates:** Updated `build.gradle.kts`, `plugin.xml`, and Gradle wrapper files to reflect the structural and functional enhancements.
 
-    """.trimIndent()
+    """
   }
 }