diff --git a/processor/src/main/java/org/javahelpers/simple/builders/processor/classgen/roaster/RoasterCodeGenerator.java b/processor/src/main/java/org/javahelpers/simple/builders/processor/classgen/roaster/RoasterCodeGenerator.java
index 5df3f01e..a14e33ae 100644
--- a/processor/src/main/java/org/javahelpers/simple/builders/processor/classgen/roaster/RoasterCodeGenerator.java
+++ b/processor/src/main/java/org/javahelpers/simple/builders/processor/classgen/roaster/RoasterCodeGenerator.java
@@ -556,12 +556,14 @@ private void configureMethod(
 
   private void addParameter(
       MethodSource<?> method, MethodParameterDto paramDto, boolean lastParameter) {
-    String parameterType =
-        lastParameter && paramDto.getParameterType() instanceof TypeNameArray arrayType
-            ? mapType(arrayType.getTypeOfArray())
-            : mapType(paramDto.getParameterType());
-    ParameterSource<?> parameter = method.addParameter(parameterType, paramDto.getParameterName());
-    if (lastParameter && paramDto.getParameterType() instanceof TypeNameArray) {
+    boolean varArgs = lastParameter && paramDto.getParameterType() instanceof TypeNameArray;
+    TypeName parameterType =
+        varArgs
+            ? ((TypeNameArray) paramDto.getParameterType()).getTypeOfArray()
+            : paramDto.getParameterType();
+    ParameterSource<?> parameter =
+        method.addParameter(mapType(parameterType), paramDto.getParameterName());
+    if (varArgs) {
       parameter.setVarArgs(true);
     }
     applyAnnotations(parameter, paramDto.getAnnotations());
diff --git a/processor/src/test/java/org/javahelpers/simple/builders/processor/ConfigurationProcessingTest.java b/processor/src/test/java/org/javahelpers/simple/builders/processor/ConfigurationProcessingTest.java
index cbebb097..7f61ecaa 100644
--- a/processor/src/test/java/org/javahelpers/simple/builders/processor/ConfigurationProcessingTest.java
+++ b/processor/src/test/java/org/javahelpers/simple/builders/processor/ConfigurationProcessingTest.java
@@ -45,61 +45,17 @@ class ConfigurationProcessingTest {
    *   <li>Add the parameter to BuilderConfiguration record
    *   <li>Add builder methods in BuilderConfiguration.Builder
    *   <li>Update DEFAULT configuration
-   *   <li>Update this test to include the new option
+   *   <li>Update these tests to include the new option
    * </ol>
    */
   @Test
   void allConfigurationOptions_MustBeSettableViaBuilder() {
-    // This test will fail to compile if any builder method is missing
-    BuilderConfiguration config =
-        BuilderConfiguration.builder()
-            // Field setter generation options
-            .generateSupplier(OptionState.ENABLED)
-            .generateConsumer(OptionState.ENABLED)
-            .generateBuilderConsumer(OptionState.ENABLED)
-            // Conditional logic
-            .generateConditionalLogic(OptionState.ENABLED)
-            // Access control
-            .builderAccess(AccessModifier.PACKAGE_PRIVATE)
-            .builderConstructorAccess(AccessModifier.PRIVATE)
-            .methodAccess(AccessModifier.PACKAGE_PRIVATE)
-            // Helper method generation
-            .generateVarArgsHelpers(OptionState.ENABLED)
-            .generateStringFormatHelpers(OptionState.ENABLED)
-            .generateUnboxedOptional(OptionState.ENABLED)
-            .copyTypeAnnotations(OptionState.ENABLED)
-            // Collection builder options
-            .usingArrayListBuilder(OptionState.ENABLED)
-            .usingArrayListBuilderWithElementBuilders(OptionState.ENABLED)
-            .usingHashSetBuilder(OptionState.ENABLED)
-            .usingHashSetBuilderWithElementBuilders(OptionState.ENABLED)
-            .usingHashMapBuilder(OptionState.ENABLED)
-            // Annotations
-            .usingGeneratedAnnotation(OptionState.ENABLED)
-            .usingBuilderImplementationAnnotation(OptionState.ENABLED)
-            // Integration
-            .implementsBuilderBase(OptionState.ENABLED)
-            .generateWithInterface(OptionState.ENABLED)
-            .usingJacksonDeserializerAnnotation(OptionState.ENABLED)
-            .generateJacksonModule(OptionState.ENABLED)
-            // Documentation
-            .generateJavaDoc(OptionState.ENABLED)
-            // Naming
-            .builderSuffix("Builder")
-            .setterSuffix("")
-            // Formatting
-            .formattingMode("lightweight")
-            .build();
-
-    // Verify all options are accessible (this will fail to compile if accessors are missing)
+    BuilderConfiguration config = buildFullyConfigured();
     assertNotNull(config);
     assertEquals(OptionState.ENABLED, config.generateFieldSupplier());
     assertEquals(OptionState.ENABLED, config.generateFieldConsumer());
     assertEquals(OptionState.ENABLED, config.generateBuilderConsumer());
     assertEquals(OptionState.ENABLED, config.generateConditionalHelper());
-    assertEquals(AccessModifier.PACKAGE_PRIVATE, config.getBuilderAccess());
-    assertEquals(AccessModifier.PRIVATE, config.getBuilderConstructorAccess());
-    assertEquals(AccessModifier.PACKAGE_PRIVATE, config.getMethodAccess());
     assertEquals(OptionState.ENABLED, config.generateVarArgsHelpers());
     assertEquals(OptionState.ENABLED, config.generateStringFormatHelpers());
     assertEquals(OptionState.ENABLED, config.generateUnboxedOptional());
@@ -116,11 +72,61 @@ void allConfigurationOptions_MustBeSettableViaBuilder() {
     assertEquals(OptionState.ENABLED, config.usingJacksonDeserializerAnnotation());
     assertEquals(OptionState.ENABLED, config.generateJacksonModule());
     assertEquals(OptionState.ENABLED, config.generateJavaDoc());
+  }
+
+  @Test
+  void allConfigurationOptions_AccessNamingAndFormatting_MustBeReadable() {
+    BuilderConfiguration config = buildFullyConfigured();
+
+    assertEquals(AccessModifier.PACKAGE_PRIVATE, config.getBuilderAccess());
+    assertEquals(AccessModifier.PRIVATE, config.getBuilderConstructorAccess());
+    assertEquals(AccessModifier.PACKAGE_PRIVATE, config.getMethodAccess());
     assertEquals("Builder", config.getBuilderSuffix());
     assertEquals("", config.getSetterSuffix());
     assertEquals("lightweight", config.formattingMode());
   }
 
+  private static BuilderConfiguration buildFullyConfigured() {
+    return BuilderConfiguration.builder()
+        // Field setter generation options
+        .generateSupplier(OptionState.ENABLED)
+        .generateConsumer(OptionState.ENABLED)
+        .generateBuilderConsumer(OptionState.ENABLED)
+        // Conditional logic
+        .generateConditionalLogic(OptionState.ENABLED)
+        // Access control
+        .builderAccess(AccessModifier.PACKAGE_PRIVATE)
+        .builderConstructorAccess(AccessModifier.PRIVATE)
+        .methodAccess(AccessModifier.PACKAGE_PRIVATE)
+        // Helper method generation
+        .generateVarArgsHelpers(OptionState.ENABLED)
+        .generateStringFormatHelpers(OptionState.ENABLED)
+        .generateUnboxedOptional(OptionState.ENABLED)
+        .copyTypeAnnotations(OptionState.ENABLED)
+        // Collection builder options
+        .usingArrayListBuilder(OptionState.ENABLED)
+        .usingArrayListBuilderWithElementBuilders(OptionState.ENABLED)
+        .usingHashSetBuilder(OptionState.ENABLED)
+        .usingHashSetBuilderWithElementBuilders(OptionState.ENABLED)
+        .usingHashMapBuilder(OptionState.ENABLED)
+        // Annotations
+        .usingGeneratedAnnotation(OptionState.ENABLED)
+        .usingBuilderImplementationAnnotation(OptionState.ENABLED)
+        // Integration
+        .implementsBuilderBase(OptionState.ENABLED)
+        .generateWithInterface(OptionState.ENABLED)
+        .usingJacksonDeserializerAnnotation(OptionState.ENABLED)
+        .generateJacksonModule(OptionState.ENABLED)
+        // Documentation
+        .generateJavaDoc(OptionState.ENABLED)
+        // Naming
+        .builderSuffix("Builder")
+        .setterSuffix("")
+        // Formatting
+        .formattingMode("lightweight")
+        .build();
+  }
+
   /**
    * Compiler arguments integration test: Verify generated builder with all options disabled.
    *
diff --git a/processor/src/test/java/org/javahelpers/simple/builders/processor/testing/ProcessorTestUtils.java b/processor/src/test/java/org/javahelpers/simple/builders/processor/testing/ProcessorTestUtils.java
index d7a70427..7b67fa84 100644
--- a/processor/src/test/java/org/javahelpers/simple/builders/processor/testing/ProcessorTestUtils.java
+++ b/processor/src/test/java/org/javahelpers/simple/builders/processor/testing/ProcessorTestUtils.java
@@ -16,6 +16,12 @@
  */
 public final class ProcessorTestUtils {
 
+  private static final Pattern PACKAGE_PATTERN =
+      Pattern.compile("(?m)^\\s*package\\s+([a-zA-Z_]\\w*(?:\\.[a-zA-Z_]\\w*)*)\\s*;");
+  private static final Pattern TOP_LEVEL_TYPE_PATTERN =
+      Pattern.compile(
+          "(?m)^[ \\t]*(?:(?:public|protected|private|abstract|final|static|sealed|non-sealed|strictfp)\\s+)*(?:@?interface|class|enum|record)\\s+([A-Za-z_]\\w*)\\b");
+
   private ProcessorTestUtils() {}
 
   /**
@@ -184,17 +190,12 @@ public static JavaFileObject forSource(String source) {
   }
 
   private static String extractPackageName(String source) {
-    Matcher m =
-        Pattern.compile("(?m)^\\s*package\\s+([a-zA-Z_]\\w*(?:\\.[a-zA-Z_]\\w*)*)\\s*;")
-            .matcher(source);
+    Matcher m = PACKAGE_PATTERN.matcher(source);
     return m.find() ? m.group(1) : null;
   }
 
   private static String extractTopLevelTypeName(String source) {
-    Matcher m =
-        Pattern.compile(
-                "(?m)^\\s*(?:public|protected|private)?(?:\\s+(?:abstract|final|static|sealed|non-sealed|strictfp))*\\s*(?:@?interface|class|enum|record)\\s+([A-Za-z_]\\w*)\\b")
-            .matcher(source);
+    Matcher m = TOP_LEVEL_TYPE_PATTERN.matcher(source);
     return m.find() ? m.group(1) : null;
   }