1 files changed, 6 insertions, 0 deletions
diff --git a/src/main/java/com/android/tools/r8/utils/ClasspathClassCollection.java b/src/main/java/com/android/tools/r8/utils/ClasspathClassCollection.java
index ee00c3976..45002d003 100644
--- a/src/main/java/com/android/tools/r8/utils/ClasspathClassCollection.java
+++ b/src/main/java/com/android/tools/r8/utils/ClasspathClassCollection.java
@@ -6,6 +6,7 @@ package com.android.tools.r8.utils;
 import com.android.tools.r8.errors.CompilationError;
 import com.android.tools.r8.graph.ClassKind;
 import com.android.tools.r8.graph.DexClasspathClass;
+import java.util.function.Supplier;
 
 /** Represents a collection of classpath classes. */
 public class ClasspathClassCollection extends ClassMap<DexClasspathClass> {
@@ -19,6 +20,11 @@ public class ClasspathClassCollection extends ClassMap<DexClasspathClass> {
   }
 
   @Override
+  Supplier<DexClasspathClass> getTransparentSupplier(DexClasspathClass clazz) {
+    return clazz;
+  }
+
+  @Override
   ClassKind getClassKind() {
     return ClassKind.CLASSPATH;
   }