#623 5.3 optimization fails with NullPointerException

[Aleksei]

I'm using ProGuard on Scala program. Works a treat with 5.2.1, but on 5.3 optimization step fails with NullPointerException. Exception output doesn't mention any program/library classes, only ProGuard ones, so I'm not sure how to produce a test case. Maybe the issue is purely with ProGuard?
I'm on Linux x86_64, openjdk 1.8.0_102.
Attaching PG config and outputs from 5.2.1 and 5.3.

[Aleksei]

Output from successful 5.2.1 run

[Aleksei]

Output from failed 5.3 run

[Eric Lafortune]

Thanks for your report. The problem is probably triggered by the missing referenced classes in some of the libraries. Can you attach or mail me a sample project that allows me to reproduce the problem?

[Aleksei]

I'll try to narrow it down to a test case, give me some time.

However, I didn't change any program code/libraries when going from PG 5.2.1 to 5.3. The only change is PG version.

[Kristina]

I have the same problem with 5.3.1. I checked the proguard code:
The method proguard.optimize.info.MethodOptimizationInfo.getMethodOptimizationInfo(method) returns null and it should be handled in the method proguard.optimize.info.NonEmptyStackReturnMarker.setReturnsWithNonEmptyStack
Is there some workaround or possible solution with changing of configuration for this problem?

[Aleksei]

I still have this problem on 5.3.2.
Kristina, you have a better grasp on this - can you please make a test case to demonstrate this issue to Eric?

[Roman Leukin]

Pease apply this patch. It solves this issue for me.

[Eric Lafortune]

That patch works indeed. The upcoming version 5.3.3 already has a OptimizationInfoMemberFilter in Optimizer.java and this (redundant) check.