[fixes #2682] Fix NPE, always add Javadoc return statement

test/transform/resource/after-delombok/WithNested.java

@@ -5,6 +5,9 @@ public interface WithNested<Z> {
 		public IAmStaticReally(final String x) {
 			this.x = x;
 		}
+		/**
+		 * @return a clone of this object, except with this updated property (returns {@code this} if an identical value is passed).
+		 */
 		@java.lang.SuppressWarnings("all")
 		public WithNested.IAmStaticReally withX(final String x) {
 			return this.x == x ? this : new WithNested.IAmStaticReally(x);