diff --git a/guava-tests/test/com/google/common/collect/ListsTest.java b/guava-tests/test/com/google/common/collect/ListsTest.java
index abbe3b754ae0..feec6399f6d5 100644
--- a/guava-tests/test/com/google/common/collect/ListsTest.java
+++ b/guava-tests/test/com/google/common/collect/ListsTest.java
@@ -61,7 +61,9 @@
 import java.util.ListIterator;
 import java.util.NoSuchElementException;
 import java.util.RandomAccess;
+import java.util.Spliterator;
 import java.util.concurrent.CopyOnWriteArrayList;
+import java.util.concurrent.atomic.AtomicBoolean;
 import junit.framework.Test;
 import junit.framework.TestCase;
 import junit.framework.TestSuite;
@@ -674,6 +676,57 @@ public void testTransformHashCodeSequential() {
 assertEquals(SOME_STRING_LIST.hashCode(), list.hashCode());
 }
 
+ @GwtIncompatible // Spliterator
+ public void testTransformSpliterator_delegatesCharacteristics_randomAccess() {
+ CopyOnWriteArrayList<integer> cowList = new CopyOnWriteArrayList<strong>(asList(1, 2, 3));
+ assertEquals(
+ cowList.spliterator().characteristics(),
+ transform(cowList, i -> i).spliterator().characteristics());
+
+ ArrayList<integer> arrayList = new ArrayList<strong>(asList(1, 2, 3));
+ assertEquals(
+ arrayList.spliterator().characteristics(),
+ transform(arrayList, i -> i).spliterator().characteristics());
+ }
+
+ @GwtIncompatible // Spliterator
+ public void testTransformSpliterator_delegatesCharacteristics_sequential() {
+ LinkedList<integer> fromList = new LinkedList<strong>(asList(1, 2, 3));
+ Spliterator<integer> spliterator = transform(fromList, i -> i).spliterator();
+ assertTrue(spliterator.hasCharacteristics(Spliterator.ORDERED));
+ assertTrue(spliterator.hasCharacteristics(Spliterator.SIZED));
+ }
+
+ @GwtIncompatible // Spliterator, CopyOnWriteArrayList
+ public void testTransformSpliterator_concurrentStreamDoesNotThrow() throws Exception {
+ CopyOnWriteArrayList<integer> fromList = new CopyOnWriteArrayList<strong>();
+ for (int i = 0; i < 1000; i++) { + fromList.add(i); + } + List<integer> view = transform(fromList, i -> i);
+ AtomicBoolean stop = new AtomicBoolean();
+ Thread mutator =
+ new Thread(
+ () -> {
+ while (!stop.get()) {
+ for (int i = 0; i < 1000; i++) { + fromList.add(i); + } + fromList.clear(); + } + }); + mutator.setDaemon(true); + mutator.start(); + try { + for (int i = 0; i < 100; i++) { + view.stream().forEach(x -> {});
+ }
+ } finally {
+ stop.set(true);
+ mutator.join(1000);
+ }
+ }
+
 public void testTransformModifiableRandomAccess() {
 List<integer> fromList = new ArrayList<strong>(SOME_LIST);
 List<string> list = transform(fromList, SOME_FUNCTION);
diff --git a/guava/src/com/google/common/collect/Lists.java b/guava/src/com/google/common/collect/Lists.java
index b99e592a2280..13bccfb32092 100644
--- a/guava/src/com/google/common/collect/Lists.java
+++ b/guava/src/com/google/common/collect/Lists.java
@@ -51,6 +51,7 @@
 import java.util.NoSuchElementException;
 import java.util.Objects;
 import java.util.RandomAccess;
+import java.util.Spliterator;
 import java.util.concurrent.CopyOnWriteArrayList;
 import java.util.function.Predicate;
 import org.jspecify.annotations.Nullable;
@@ -605,6 +606,12 @@ public boolean removeIf(Predicate<? super T> filter) {
 return fromList.removeIf(element -> filter.test(function.apply(element)));
 }
 
+ @Override
+ @GwtIncompatible // Spliterator
+ public Spliterator<t> spliterator() {
+ return CollectSpliterators.map(fromList.spliterator(), 0, function::apply);
+ }
+
 @GwtIncompatible @J2ktIncompatible private static final long serialVersionUID = 0;
 }
 
@@ -678,6 +685,12 @@ public int size() {
 return fromList.size();
 }
 
+ @Override
+ @GwtIncompatible // Spliterator
+ public Spliterator<t> spliterator() {
+ return CollectSpliterators.map(fromList.spliterator(), 0, function::apply);
+ }
+
 @GwtIncompatible @J2ktIncompatible private static final long serialVersionUID = 0;
 }
 
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