Getting error related to Mockito

[ayush9999-qa]

Hello,

My test cases are using Mockito and are running file when triggered using sbt but during initial test run of stryker with scala, it is failing because of following reason:

[debug] testrunner 13337: Received message StartInitialTestRun()
[debug] testrunner 13337: Test unsuccessful: com.agoda.core.search.availabilities.services.helper.SupplierDataClientWrapperImplSpec status Failure with OptionalThrowable(org.mockito.exceptions.base.MockitoException: 
[debug] testrunner 13337: Mockito cannot mock this class: class com.agoda.supplier.client.SupplierCQLDataClient.
[debug] testrunner 13337: 
[debug] testrunner 13337: Mockito can only mock non-private & non-final classes.
[debug] testrunner 13337: If you're not sure why you're getting this error, please report to the mailing list.
[debug] testrunner 13337: 
[debug] testrunner 13337: 
[debug] testrunner 13337: Java               : 1.8
[debug] testrunner 13337: JVM vendor name    : Azul Systems, Inc.
[debug] testrunner 13337: JVM vendor version : 25.192-b01
[debug] testrunner 13337: JVM name           : OpenJDK 64-Bit Server VM
[debug] testrunner 13337: JVM version        : 1.8.0_192-b01
[debug] testrunner 13337: JVM info           : mixed mode
[debug] testrunner 13337: OS name            : Mac OS X
[debug] testrunner 13337: OS version         : 10.16
[debug] testrunner 13337: 
[debug] testrunner 13337: 
[debug] testrunner 13337: Underlying exception : java.lang.IllegalArgumentException: Could not create type)
[debug] testrunner 13337: Test unsuccessful: com.agoda.core.search.availabilities.services.helper.SupplierDataClientWrapperImplSpec status Failure with OptionalThrowable(org.mockito.exceptions.base.MockitoException: 
[debug] testrunner 13337: Mockito cannot mock this class: class com.agoda.supplier.client.SupplierCQLDataClient.

Stryker version - 0.14.1

[hugo-vrijswijk]

Hi! Thanks for opening this issue. Unfortunately, this is a little difficult to help with without more information. It looks like the class that Mockito is unable to mock is not from a library but from the application itself? I haven't seen an error like this before. Would you be able to create a small repository where this issue is reproduced? Then I'd be happy to take a more thorough look