diff --git a/src/main/java/com/android/tools/r8/ir/desugar/BackportedMethodRewriter.java b/src/main/java/com/android/tools/r8/ir/desugar/BackportedMethodRewriter.java
index 38ce1d8..3c8315b 100644
--- a/src/main/java/com/android/tools/r8/ir/desugar/BackportedMethodRewriter.java
+++ b/src/main/java/com/android/tools/r8/ir/desugar/BackportedMethodRewriter.java
@@ -187,7 +187,7 @@
           appView
               .contextIndependentDefinitionForWithResolutionResult(provider.method.holder)
               .toSingleClassWithProgramOverLibrary();
-      if (!clazz.isProgramDefinition()) {
+      if (clazz == null || !clazz.isProgramDefinition()) {
         appView
             .reporter()
             .warning(