revert unintended changes #6

Job	Run time
Build Kotlin server (jdk8) (samples/server/petstore/kotlin-springboot)	1m 27s
Build Kotlin server (jdk8) (samples/server/petstore/kotlin-springboot-multipart-request-model)	1m 35s
Build Kotlin server (jdk8) (samples/server/petstore/kotlin-springboot-bigdecimal-default)	1m 34s
Build Kotlin server (jdk8) (samples/server/petstore/kotlin-springboot-delegate)	1m 43s
Build Kotlin server (jdk8) (samples/server/petstore/kotlin-springboot-modelMutable)	1m 30s
Build Kotlin server (jdk8) (samples/server/petstore/kotlin-springboot-reactive)	1m 42s
Build Kotlin server (jdk8) (samples/server/petstore/kotlin-springboot-source-swagger1)	1m 41s
Build Kotlin server (jdk8) (samples/server/petstore/kotlin-springboot-source-swagger2)	1m 33s
Build Kotlin server (jdk8) (samples/server/petstore/kotlin-springboot-springfox)	1m 47s
Build Kotlin server (jdk8) (samples/server/petstore/kotlin-server/ktor)	1m 48s
Build Kotlin server (jdk8) (samples/server/petstore/kotlin-server/jaxrs-spec)	1m 28s
Build Kotlin server (jdk8) (samples/server/petstore/kotlin-server/jaxrs-spec-mutiny)	1m 23s
Build Kotlin server (jdk8) (samples/server/petstore/kotlin-server-modelMutable)	1m 36s
Build Kotlin server (jdk8) (samples/server/petstore/kotlin-server/javalin)	1m 23s
Build Kotlin server (jdk8) (samples/server/others/kotlin-server/jaxrs-spec)	1m 21s
Build Kotlin server (jdk8) (samples/server/others/kotlin-server/jaxrs-spec-array-response)	1m 27s
Build Kotlin server (jdk8) (samples/server/petstore/kotlin-spring-cloud)	1m 38s
	26m 36s

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