commit e2ff4cb5293f7554ddb5cca73c71b15fd2bcbdca
author Søren Gjesse <sgjesse@google.com> Fri Sep 01 14:20:51 2023 +0200
committer Søren Gjesse <sgjesse@google.com> Mon Sep 04 07:15:34 2023 +0000
tree b20ba6f8a156ff9f82a63b9455e8a6ab8952ef15
parent d3585ccf03cd3c13b5609ab983a4074853624eb0

Allow checking for backports of classes which are not found at all

E.g. sun.misc.Unsafe has no definition at compile time.

Bug: b/232073181
Fixes: b/298627017
Change-Id: I996ab087d7dc5e779e665b87edd01d1e21c1b141

src/main/java/com/android/tools/r8/ir/desugar/BackportedMethodRewriter.java

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(