Hi, We are trying to make the move from tags to environments and deployments to overcome many problems we are having our workflow. Early work in JS looks promising. However we have hit a snag in Java when trying to upgrade the version from 4.3.9 to the new 4.3.11 (or indeed 4.3.10). Running JUnit5 with maven. We get the error during runtime of [ERROR] pactVerificationTestTemplate{PactVerificationContext, HttpRequest} Time elapsed: 6.217 s <<< ERROR! java.lang.RuntimeException: java.lang.NoSuchMethodError: 'void kotlin.jvm.internal.FunctionReferenceImpl.<init>(int, java.lang.Class, java.lang.String, java.lang.String, int)' Caused by: java.lang.NoSuchMethodError: 'void kotlin.jvm.internal.FunctionReferenceImpl.<init>(int, java.lang.Class, java.lang.String, java.lang.String, int)' The tests run fine against

<dependency>
  <groupId>au.com.dius.pact.provider</groupId>
  <artifactId>junit5</artifactId>
  <version>4.3.9</version>
</dependency>

but give that error in 4.3.11. Appreciate any help in this. Many thanks

That looks like a conflict with Kotlin standard library versions. I'm just going through the change log to see what has changed since 4.3.9

@rholshausen Thank you for your suggestion - and apologies for your response (we had delays in accessing our dev broker version). We have added in

<dependency>
  <groupId>org.jetbrains.kotlin</groupId>
  <artifactId>kotlin-stdlib-common</artifactId>
  <version>1.5.31</version>
</dependency>

to our pom.xml - but are still seeing the same runtime error: [ERROR] pactVerificationTestTemplate{PactVerificationContext, HttpRequest} Time elapsed: 3.168 s <<< ERROR! java.lang.RuntimeException: java.lang.NoSuchMethodError: 'void kotlin.jvm.internal.FunctionReferenceImpl.<init>(int, java.lang.Class, java.lang.String, java.lang.String, int)' Caused by: java.lang.NoSuchMethodError: 'void kotlin.jvm.internal.FunctionReferenceImpl.<init>(int, java.lang.Class, java.lang.String, java.lang.String, int)' with version 4.3.10/11

<groupId>au.com.dius.pact.provider</groupId>
<artifactId>junit5</artifactId>

. Any further suggestions. Many thanks

I got this error as well. Looks like a bug with the Kotlin compiler. I changed the function signature that was causing the issue, and the exception went away. I'll release a fix for this soon.

@uglyog Thanks. If possible can you please post here when that is available.

Is it in here Paul https://pact-foundation.slack.com/archives/C9UN99H24/p1658817977841809 ?

@Matt (pactflow.io / pact-js / pact-go) Yes, thanks. Just tried that and it works now 🥳 Need to work through your guides now, and start to deploy around services, so we can start moving away from tags. Many thanks