Work around lookup failure
Bug: b/237507594
Change-Id: I146836f653b2974a8979c57cc35f047ce9d0756c
diff --git a/src/main/java/com/android/tools/r8/ir/desugar/itf/ClassProcessor.java b/src/main/java/com/android/tools/r8/ir/desugar/itf/ClassProcessor.java
index d5168da..92467a3 100644
--- a/src/main/java/com/android/tools/r8/ir/desugar/itf/ClassProcessor.java
+++ b/src/main/java/com/android/tools/r8/ir/desugar/itf/ClassProcessor.java
@@ -723,6 +723,30 @@
assert resolutionResult.isSuccessfulMemberResolutionResult();
LookupMethodTarget lookupMethodTarget =
resolutionResult.lookupVirtualDispatchTarget(clazz, appInfo);
+ if (lookupMethodTarget == null) {
+ // This should not happen, but is does in b/237507594.
+ // We have no reproduction for the issue.
+ // We try to raise a warning here to help investigating:
+ // It could be an issue related to array#clone, or this can be due to a missing/invalid class.
+ assert false;
+ appView
+ .options()
+ .reporter
+ .warning(
+ "The class processor was not able to look-up the default method "
+ + method
+ + " in the class "
+ + clazz
+ + " (Single resolution: "
+ + resolutionResult.isSingleResolution()
+ + "; resolution pair: "
+ + resolutionResult.getResolutionPair()
+ + "). Please report this issue in the D8/R8 bug tracker at"
+ + " https://issuetracker.google.com/issues/237507594.");
+ // To be able to resume compilation we add a NoSuchMethodErrorThrowingMethod.
+ addNoSuchMethodErrorThrowingMethod(method, clazz);
+ return;
+ }
DexClassAndMethod virtualDispatchTarget = lookupMethodTarget.getTarget();
assert virtualDispatchTarget != null;
