import java.util.List; import lombok.Builder; @Builder(toBuilder = true) @lombok.experimental.Accessors(prefix = "m") class BuilderWithToBuilder<T> { private String mOne, mTwo; @Builder.ObtainVia(method = "rrr", isStatic = true) private T foo; @lombok.Singular private List<T> bars; public static <K> K rrr(BuilderWithToBuilder<K> x) { return x.foo; } } @lombok.experimental.Accessors(prefix = "m") class ConstructorWithToBuilder<T> { private String mOne, mTwo; private T foo; @lombok.Singular private com.google.common.collect.ImmutableList<T> bars; @Builder(toBuilder = true) public ConstructorWithToBuilder(String mOne, @Builder.ObtainVia(field = "foo") T baz, com.google.common.collect.ImmutableList<T> bars) { } } class StaticMethodWithToBuilder<T> { private T foo; public StaticMethodWithToBuilder(T foo) { this.foo = foo; } @Builder(toBuilder = true) public static <T> StaticMethodWithToBuilder<T> of(T foo) { return new StaticMethodWithToBuilder<T>(foo); } }