Fix broken Library.newEmpty().

PiperOrigin-RevId: 700163323
google · Nov 26, 2024 · bb7802b · bb7802b
1 parent 794e55d
commit bb7802b
Showing 1 changed file with 4 additions and 2 deletions.
diff --git a/transpiler/java/com/google/j2cl/transpiler/ast/Library.java b/transpiler/java/com/google/j2cl/transpiler/ast/Library.java
@@ -17,9 +17,11 @@
 
 import static com.google.common.base.Preconditions.checkNotNull;
 
+import com.google.common.collect.ImmutableList;
 import com.google.errorprone.annotations.CanIgnoreReturnValue;
 import com.google.j2cl.common.visitor.Processor;
 import com.google.j2cl.common.visitor.Visitable;
+import java.util.ArrayList;
 import java.util.List;
 import java.util.stream.Stream;
 
@@ -63,7 +65,7 @@ Node acceptInternal(Processor processor) {
   }
 
   public static Library newEmpty() {
-    return new Builder().build();
+    return new Builder().setCompilationUnits(ImmutableList.of()).build();
   }
 
   public static Builder newBuilder() {
@@ -81,7 +83,7 @@ public static Builder from(Library library) {
 
     @CanIgnoreReturnValue
     public Builder setCompilationUnits(List<CompilationUnit> compilationUnits) {
-      this.compilationUnits = compilationUnits;
+      this.compilationUnits = new ArrayList<>(compilationUnits);
       return this;
     }