import java.util.List; public class SuperBuilderWithDefaults { public static @lombok.experimental.SuperBuilder class Parent<N extends Number> { public static abstract @java.lang.SuppressWarnings("all") class ParentBuilder<N extends Number, C extends Parent<N>, B extends ParentBuilder<N, C, B>> { private @java.lang.SuppressWarnings("all") long millis; private @java.lang.SuppressWarnings("all") boolean millis$set; private @java.lang.SuppressWarnings("all") N numberField; private @java.lang.SuppressWarnings("all") boolean numberField$set; public ParentBuilder() { super(); } protected abstract @java.lang.SuppressWarnings("all") B self(); public abstract @java.lang.SuppressWarnings("all") C build(); public @java.lang.SuppressWarnings("all") B millis(final long millis) { this.millis = millis; millis$set = true; return self(); } public @java.lang.SuppressWarnings("all") B numberField(final N numberField) { this.numberField = numberField; numberField$set = true; return self(); } public @java.lang.Override @java.lang.SuppressWarnings("all") java.lang.String toString() { return (((("SuperBuilderWithDefaults.Parent.ParentBuilder(millis=" + this.millis) + ", numberField=") + this.numberField) + ")"); } } private static final @java.lang.SuppressWarnings("all") class ParentBuilderImpl<N extends Number> extends ParentBuilder<N, Parent<N>, ParentBuilderImpl<N>> { private ParentBuilderImpl() { super(); } protected @java.lang.Override @java.lang.SuppressWarnings("all") ParentBuilderImpl<N> self() { return this; } public @java.lang.Override @java.lang.SuppressWarnings("all") Parent<N> build() { return new Parent<N>(this); } } private @lombok.Builder.Default long millis; private @lombok.Builder.Default N numberField; private static @java.lang.SuppressWarnings("all") <N extends Number>long $default$millis() { return System.currentTimeMillis(); } private static @java.lang.SuppressWarnings("all") <N extends Number>N $default$numberField() { return null; } protected @java.lang.SuppressWarnings("all") Parent(final ParentBuilder<N, ?, ?> b) { super(); if (b.millis$set) this.millis = b.millis; else this.millis = Parent.<N>$default$millis(); if (b.numberField$set) this.numberField = b.numberField; else this.numberField = Parent.<N>$default$numberField(); } public static @java.lang.SuppressWarnings("all") <N extends Number>ParentBuilder<N, ?, ?> builder() { return new ParentBuilderImpl<N>(); } } public static @lombok.experimental.SuperBuilder class Child extends Parent<Integer> { public static abstract @java.lang.SuppressWarnings("all") class ChildBuilder<C extends Child, B extends ChildBuilder<C, B>> extends Parent.ParentBuilder<Integer, C, B> { private @java.lang.SuppressWarnings("all") double doubleField; private @java.lang.SuppressWarnings("all") boolean doubleField$set; public ChildBuilder() { super(); } protected abstract @java.lang.Override @java.lang.SuppressWarnings("all") B self(); public abstract @java.lang.Override @java.lang.SuppressWarnings("all") C build(); public @java.lang.SuppressWarnings("all") B doubleField(final double doubleField) { this.doubleField = doubleField; doubleField$set = true; return self(); } public @java.lang.Override @java.lang.SuppressWarnings("all") java.lang.String toString() { return (((("SuperBuilderWithDefaults.Child.ChildBuilder(super=" + super.toString()) + ", doubleField=") + this.doubleField) + ")"); } } private static final @java.lang.SuppressWarnings("all") class ChildBuilderImpl extends ChildBuilder<Child, ChildBuilderImpl> { private ChildBuilderImpl() { super(); } protected @java.lang.Override @java.lang.SuppressWarnings("all") ChildBuilderImpl self() { return this; } public @java.lang.Override @java.lang.SuppressWarnings("all") Child build() { return new Child(this); } } private @lombok.Builder.Default double doubleField; private static @java.lang.SuppressWarnings("all") double $default$doubleField() { return Math.PI; } protected @java.lang.SuppressWarnings("all") Child(final ChildBuilder<?, ?> b) { super(b); if (b.doubleField$set) this.doubleField = b.doubleField; else this.doubleField = Child.$default$doubleField(); } public static @java.lang.SuppressWarnings("all") ChildBuilder<?, ?> builder() { return new ChildBuilderImpl(); } } public SuperBuilderWithDefaults() { super(); } public static void test() { Child x = Child.builder().doubleField(0.1).numberField(5).millis(1234567890L).build(); } }