Remove the sample.client.IntegrationTestConfiugration class.
Refactor sample.server.GemFireServer class to extend ClientServerIntegrationTestsConfiguration.
Refactor sample.client.Application.ClientCacheConfiguration class to import SubscriptionEnabledClientServerIntegrationTestsConfiguration class.
Refactor integrationTest.doFirst to set the 'spring.data.gemfire.cache.server.port' property.
Refactor integrationTest.onLast to call runGemFireServer.process?.destroy().
Add 'spring.data.gemfire.cache.server.port' property to the System properties when forking & launching the GemFire server in runGemFireServer.doLast.