[fixes #2701] fix NPE on customized SuperBuilder with Singular

1 files changed, 77 insertions, 0 deletions

diff --git a/test/transform/resource/after-delombok/SuperBuilderSingularCustomized.java b/test/transform/resource/after-delombok/SuperBuilderSingularCustomized.java
new file mode 100644
index 00000000..04cfd9f2
--- /dev/null
+++ b/test/transform/resource/after-delombok/SuperBuilderSingularCustomized.java
@@ -0,0 +1,77 @@
+import java.util.Set;
+class SuperBuilderSingularCustomized {
+	private Set<String> foos;
+	public static abstract class SuperBuilderSingularCustomizedBuilder<C extends SuperBuilderSingularCustomized, B extends SuperBuilderSingularCustomized.SuperBuilderSingularCustomizedBuilder<C, B>> {
+		@java.lang.SuppressWarnings("all")
+		private java.util.ArrayList<String> foos;
+		public B custom(final String value) {
+			return self();
+		}
+		@java.lang.SuppressWarnings("all")
+		protected abstract B self();
+		@java.lang.SuppressWarnings("all")
+		public abstract C build();
+		@java.lang.SuppressWarnings("all")
+		public B foo(final String foo) {
+			if (this.foos == null) this.foos = new java.util.ArrayList<String>();
+			this.foos.add(foo);
+			return self();
+		}
+		@java.lang.SuppressWarnings("all")
+		public B foos(final java.util.Collection<? extends String> foos) {
+			if (foos == null) {
+				throw new java.lang.NullPointerException("foos cannot be null");
+			}
+			if (this.foos == null) this.foos = new java.util.ArrayList<String>();
+			this.foos.addAll(foos);
+			return self();
+		}
+		@java.lang.SuppressWarnings("all")
+		public B clearFoos() {
+			if (this.foos != null) this.foos.clear();
+			return self();
+		}
+		@java.lang.Override
+		@java.lang.SuppressWarnings("all")
+		public java.lang.String toString() {
+			return "SuperBuilderSingularCustomized.SuperBuilderSingularCustomizedBuilder(foos=" + this.foos + ")";
+		}
+	}
+	@java.lang.SuppressWarnings("all")
+	private static final class SuperBuilderSingularCustomizedBuilderImpl extends SuperBuilderSingularCustomized.SuperBuilderSingularCustomizedBuilder<SuperBuilderSingularCustomized, SuperBuilderSingularCustomized.SuperBuilderSingularCustomizedBuilderImpl> {
+		@java.lang.SuppressWarnings("all")
+		private SuperBuilderSingularCustomizedBuilderImpl() {
+		}
+		@java.lang.Override
+		@java.lang.SuppressWarnings("all")
+		protected SuperBuilderSingularCustomized.SuperBuilderSingularCustomizedBuilderImpl self() {
+			return this;
+		}
+		@java.lang.Override
+		@java.lang.SuppressWarnings("all")
+		public SuperBuilderSingularCustomized build() {
+			return new SuperBuilderSingularCustomized(this);
+		}
+	}
+	@java.lang.SuppressWarnings("all")
+	protected SuperBuilderSingularCustomized(final SuperBuilderSingularCustomized.SuperBuilderSingularCustomizedBuilder<?, ?> b) {
+		java.util.Set<String> foos;
+		switch (b.foos == null ? 0 : b.foos.size()) {
+		case 0: 
+			foos = java.util.Collections.emptySet();
+			break;
+		case 1: 
+			foos = java.util.Collections.singleton(b.foos.get(0));
+			break;
+		default: 
+			foos = new java.util.LinkedHashSet<String>(b.foos.size() < 1073741824 ? 1 + b.foos.size() + (b.foos.size() - 3) / 3 : java.lang.Integer.MAX_VALUE);
+			foos.addAll(b.foos);
+			foos = java.util.Collections.unmodifiableSet(foos);
+		}
+		this.foos = foos;
+	}
+	@java.lang.SuppressWarnings("all")
+	public static SuperBuilderSingularCustomized.SuperBuilderSingularCustomizedBuilder<?, ?> builder() {
+		return new SuperBuilderSingularCustomized.SuperBuilderSingularCustomizedBuilderImpl();
+	}
+}
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