IssueTracker

Thank you for the report. This looks looks like something in the class file that our class file verification cannot handle. The failing_bytecode.txt does not have all the details, so will it be possible for you to share the binary class file for the class kbbbbb.kggkkk? You can share it privately with sgjesse@google.com and mkroghj@google.com if that works better for you. Alternatively the disassembly from running javap with the -v option (javap -v -cp <the jar> kbbbbb.kggkkk.

The deobfuscated R8 stack trace is:

Caused by: com.android.tools.r8.errors.Unreachable: Invalid descriptor char 'N'	
at com.android.tools.r8.ir.code.MemberType.fromTypeDescriptorChar(MemberType.java:98)	
at com.android.tools.r8.ir.code.MemberType.fromDexType(MemberType.java:103)	
at com.android.tools.r8.graph.CfCode.isAssignable(CfCode.java:918)	
at com.android.tools.r8.graph.CfCode.lambda$isAssignablePredicate$8(CfCode.java:887)	
at com.android.tools.r8.cf.code.CfFrameVerificationHelper.canBeAssigned(CfFrameVerificationHelper.java:375)	
at com.android.tools.r8.cf.code.CfFrameVerificationHelper.verifyStackIsAssignable(CfFrameVerificationHelper.java:320)	
at com.android.tools.r8.cf.code.CfFrameVerificationHelper.verifyIsAssignable(CfFrameVerificationHelper.java:264)	
at com.android.tools.r8.cf.code.CfFrameVerificationHelper.verifyFrame(CfFrameVerificationHelper.java:213)	
at com.android.tools.r8.cf.code.CfFrameVerificationHelper.verifyFrame(CfFrameVerificationHelper.java:209)	
at com.android.tools.r8.cf.code.CfFrameVerificationHelper.verifyFrameAndSet(CfFrameVerificationHelper.java:169)	
at com.android.tools.r8.cf.code.CfFrame.evaluate(CfFrame.java:454)	
at com.android.tools.r8.graph.CfCode.verifyFrames(CfCode.java:782)	
at com.android.tools.r8.graph.CfCode.verifyFramesOrRemove(CfCode.java:412)	
at com.android.tools.r8.graph.CfCode.buildIR(CfCode.java:386)	
at com.android.tools.r8.graph.LazyCfCode.buildIR(LazyCfCode.java:215)	
at com.android.tools.r8.graph.ProgramMethod.buildIR(ProgramMethod.java:25)	
at com.android.tools.r8.ir.conversion.IRConverter.rewriteCodeInternal(IRConverter.java:1122)	
at com.android.tools.r8.ir.conversion.IRConverter.lambda$rewriteCode$13(IRConverter.java:1088)	
at com.android.tools.r8.utils.ExceptionUtils.withOriginAndPositionAttachmentHandler(ExceptionUtils.java:220)	
at com.android.tools.r8.ir.conversion.IRConverter.rewriteCode(IRConverter.java:1085)	
at com.android.tools.r8.ir.conversion.IRConverter.convertMethod(IRConverter.java:535)	
at com.android.tools.r8.ir.conversion.IRConverter.lambda$convertMethods$2(IRConverter.java:516)	
at com.android.tools.r8.graph.DexProgramClass.lambda$forEachProgramMethodMatching$1(DexProgramClass.java:154)	
at com.android.tools.r8.graph.MethodCollection.lambda$forEachMethodMatching$0(MethodCollection.java:96)	
at com.android.tools.r8.graph.MethodCollectionBacking.lambda$forEachMethod$0(MethodCollectionBacking.java:51)	
at com.android.tools.r8.graph.MethodArrayBacking.traverse(MethodArrayBacking.java:65)	
at com.android.tools.r8.graph.MethodCollectionBacking.forEachMethod(MethodCollectionBacking.java:48)	
at com.android.tools.r8.graph.MethodCollectionBacking.forEachMethod(MethodCollectionBacking.java:44)	
at com.android.tools.r8.graph.MethodCollection.forEachMethodMatching(MethodCollection.java:93)	
at com.android.tools.r8.graph.DexProgramClass.forEachProgramMethodMatching(DexProgramClass.java:153)	
at com.android.tools.r8.ir.conversion.IRConverter.convertMethods(IRConverter.java:511)	
at com.android.tools.r8.utils.ThreadUtils.lambda$processItems$4(ThreadUtils.java:59)	
at com.android.tools.r8.utils.ThreadUtils.lambda$processItems$6(ThreadUtils.java:84)	
at com.android.tools.r8.utils.ThreadUtils.lambda$processItemsWithResults$2(ThreadUtils.java:51)	
at com.google.common.util.concurrent.TrustedListenableFutureTask$TrustedFutureInterruptibleTask.runInterruptibly(TrustedListenableFutureTask.java:125)	
at com.google.common.util.concurrent.InterruptibleTask.run(InterruptibleTask.java:69)	
at com.google.common.util.concurrent.TrustedListenableFutureTask.run(TrustedListenableFutureTask.java:78)	
at com.google.common.util.concurrent.MoreExecutors$DirectExecutorService.execute(MoreExecutors.java:322)	
at com.google.common.util.concurrent.AbstractListeningExecutorService.submit(AbstractListeningExecutorService.java:66)	
at com.google.common.util.concurrent.AbstractListeningExecutorService.submit(AbstractListeningExecutorService.java:36)	
at com.android.tools.r8.utils.ThreadUtils.lambda$processItemsWithResults$3(ThreadUtils.java:51)	
at com.android.tools.r8.utils.ThreadUtils.processItemsWithResults(ThreadUtils.java:48)	
at com.android.tools.r8.utils.ThreadUtils.processItems(ThreadUtils.java:81)	
at com.android.tools.r8.utils.ThreadUtils.processItems(ThreadUtils.java:67)	
at com.android.tools.r8.utils.ThreadUtils.processItems(ThreadUtils.java:59)	
at com.android.tools.r8.ir.conversion.IRConverter.convert(IRConverter.java:476)	
at com.android.tools.r8.D8.run(D8.java:209)	
at com.android.tools.r8.D8.lambda$run$1(D8.java:119)	
at com.android.tools.r8.utils.ExceptionUtils.withCompilationHandler(ExceptionUtils.java:70)	
at com.android.tools.r8.utils.ExceptionUtils.withD8CompilationHandler(ExceptionUtils.java:54)	
at com.android.tools.r8.D8.run(D8.java:116)	
at com.android.builder.dexing.D8DexArchiveBuilder.convert(D8DexArchiveBuilder.java:116)	

This is the exception: https://r8.googlesource.com/r8/+/refs/tags/2.2.25-dev/src/main/java/com/android/tools/r8/ir/code/MemberType.java#98.

Sent over the class file via email, thanks!

Thank you for the file - was able to reproduce it and have a fix ready. Will report back when the fix has been backported to 2.2