Security manager preventing EqualsVerifier to create dynamic subclass

[sywor]

The steps are pretty well described here.
If there is a abstract class in a signed jar that is extended in an other class the security manager throws an security exception when the equals verifier tries to create an dynamic subclass in the signed jar.

What error message or stack trace does EqualsVerifier give?

java.lang.SecurityException: class "...ExternalClass$$DynamicSubclass"'s signer information does not match signer information of other classes in the same package

Which version of EqualsVerifier are you using?

2.1.8

Please provide any additional information below.

I'm adding this issue here for bookkeeping. The issue could possibly be solved by using prefab values.

[jqno]

As I've asked in the thread you link to, you have to help me out here. Can you please give me such a jar, or show me how to make one, so I can reproduce this issue?
I really want to fix this issue, but I have no experience with signed jars and work is keeping me pretty busy, so if you help me out I can fix it much sooner than if I have to figure everything out myself...

[sywor]

Its been a while and my colleague finally had some spare time over to throw together a small project to demonstrate the bug.
Link to project: https://github.com/sywor/EqualsVerifierBug
In the ExternalProject pom file it is important that you set the path the the .keystore file

[jqno]

Thank you, and also please thank your colleague for taking the time to do this 😄.
I was able to reproduce the issue with this repo. I will investigate further, and I'll get back to you when I know more.

[jqno]

I found a solution for this issue!
I have a couple of other things I want to do before I release, but they shouldn't take too much time. I'll let you know when it's released.

[jqno]

I've just released version 2.3, which should fix this problem.