Revert utility functions.

SimY4 · SimY4 · commit b9df716fe8e1 · 2023-08-29T15:23:02.000+10:00
diff --git a/value-processor/src/org/immutables/value/processor/Immutables.generator b/value-processor/src/org/immutables/value/processor/Immutables.generator
@@ -1662,7 +1662,7 @@ checkNotIsSet([v.names.isSet](), "[v.names.raw]");
   [varargsSafety v]
   public final java.util.List<[attributeBuilderBuilderType v.getAttributeBuilderDescriptor]> [v.names.getBuilders]() {
   [if v.generateJdkOnly]
-    return createUnmodifiableList(false, this.[v.name]);
+    return [if v.generateJdk9]java.util.List.copyOf(this.[v.name])[else]createUnmodifiableList(false, this.[v.name])[/if];
   [else]
     return this.[v.name].build();
   [/if]
diff --git a/value-processor/src/org/immutables/value/processor/meta/ValueType.java b/value-processor/src/org/immutables/value/processor/meta/ValueType.java
@@ -1160,6 +1160,8 @@ public boolean apply(ValueAttribute attribute) {
       if (def) {
         switch (kind) {
           case MAP:
+          case LIST:
+          case SET:
             return !attribute.isGenerateJdk9();
           default:
             return true;
