1 files changed, 3 insertions, 0 deletions
diff --git a/test/transform/resource/after-delombok/BuilderSingularNoAutoWithSetterPrefix.java b/test/transform/resource/after-delombok/BuilderSingularNoAutoWithSetterPrefix.java
index 57bef625..a023b82a 100644
--- a/test/transform/resource/after-delombok/BuilderSingularNoAutoWithSetterPrefix.java
+++ b/test/transform/resource/after-delombok/BuilderSingularNoAutoWithSetterPrefix.java
@@ -28,6 +28,7 @@ class BuilderSingularNoAutoWithSetterPrefix {
 		}
 		@java.lang.SuppressWarnings("all")
 		public BuilderSingularNoAutoWithSetterPrefix.BuilderSingularNoAutoWithSetterPrefixBuilder withThings(final java.util.Collection<? extends String> things) {
+			if (things == null) throw new java.lang.NullPointerException("things cannot be null");
 			if (this.things == null) this.things = new java.util.ArrayList<String>();
 			this.things.addAll(things);
 			return this;
@@ -45,6 +46,7 @@ class BuilderSingularNoAutoWithSetterPrefix {
 		}
 		@java.lang.SuppressWarnings("all")
 		public BuilderSingularNoAutoWithSetterPrefix.BuilderSingularNoAutoWithSetterPrefixBuilder withWidgets(final java.util.Collection<? extends String> widgets) {
+			if (widgets == null) throw new java.lang.NullPointerException("widgets cannot be null");
 			if (this.widgets == null) this.widgets = new java.util.ArrayList<String>();
 			this.widgets.addAll(widgets);
 			return this;
@@ -62,6 +64,7 @@ class BuilderSingularNoAutoWithSetterPrefix {
 		}
 		@java.lang.SuppressWarnings("all")
 		public BuilderSingularNoAutoWithSetterPrefix.BuilderSingularNoAutoWithSetterPrefixBuilder withItems(final java.util.Collection<? extends String> items) {
+			if (items == null) throw new java.lang.NullPointerException("items cannot be null");
 			if (this.items == null) this.items = new java.util.ArrayList<String>();
 			this.items.addAll(items);
 			return this;