Add ImmutableList case.

PiperOrigin-RevId: 889431611

Author: j2objc-copybara

translator/src/test/java/com/google/devtools/j2objc/translate/ObjectiveCKmpMethodTranslatorTest.java

@@ -24,6 +24,22 @@ public class ObjectiveCKmpMethodTranslatorTest extends GenerationTest {
   @Override
   public void setUp() throws IOException {
     super.setUp();
+    addSourceFile(
+        """
+        package com.google.common.collect;
+        public class ImmutableList<E> extends java.util.AbstractList<E> {
+          public static <E> ImmutableList<E> of() {
+            return new ImmutableList<E>();
+          }
+          public E get(int index) {
+            return null;
+          }
+          public int size() {
+            return 0;
+          }
+        }
+        """,
+        "com/google/common/collect/ImmutableList.java");
     addSourceFile("public class Foo {}", "Foo.java");
     addSourceFile("public class Bar {}", "Bar.java");
     addSourceFile(
@@ -769,6 +785,49 @@ public void setList(List<Bar> list) {}
             + " toGenericWithId:list]]");
   }
 
+  public void testImmutableListIsNotConverted() throws IOException {
+    addSourceFile(
+        """
+        import com.google.common.collect.ImmutableList;
+        import com.google.j2objc.annotations.ObjectiveCKmpMethod;
+
+        public class ImmutableListTest {
+          @ObjectiveCKmpMethod(selector="setListWithImmutableList:", adapter=Adapter.class)
+          public void setList(ImmutableList<String> list) {
+            return;
+          }
+
+          @ObjectiveCKmpMethod(selector="getListAsImmutableList", adapter=Adapter.class)
+          public ImmutableList<String> getList() {
+            return null;
+          }
+        }
+        """,
+        "ImmutableListTest.java");
+
+    String testHeader = translateSourceFile("ImmutableListTest", "ImmutableListTest.h");
+    assertInTranslation(
+        testHeader, "- (void)setListWithImmutableList:(ComGoogleCommonCollectImmutableList *)list;");
+    assertInTranslation(
+        testHeader, "- (ComGoogleCommonCollectImmutableList *)getListAsImmutableList;");
+
+    String testImplementation = translateSourceFile("ImmutableListTest", "ImmutableListTest.m");
+    assertInTranslation(
+        testImplementation,
+        """
+        - (void)setListWithImmutableList:(ComGoogleCommonCollectImmutableList *)list {
+          [self setListWithComGoogleCommonCollectImmutableList:list];
+        }
+        """);
+    assertInTranslation(
+        testImplementation,
+        """
+        - (ComGoogleCommonCollectImmutableList *)getListAsImmutableList {
+          return [self getList];
+        }
+        """);
+  }
+
   public void testNoMethodFoundThrowsException() throws IOException {
     addSourceFile(
         """