Assert size of collections on the request side; fixes gh-824

samples/standalone/dsl/http-client/build.gradle

@@ -56,10 +56,6 @@ test {
 	}
 }
 
-task wrapper(type: Wrapper) {
-    gradleVersion = '4.0.2'
-}
-
 task resolveDependencies {
 	doLast {
 		project.rootProject.allprojects.each { subProject ->

samples/standalone/dsl/http-server/build.gradle

@@ -27,7 +27,7 @@ repositories {
 }
 // end::deps_repos[]
 
-apply plugin: 'groovy'
+apply plugin: 'java'
 apply plugin: 'org.springframework.boot'
 apply plugin: 'io.spring.dependency-management'
 apply plugin: 'spring-cloud-contract'
@@ -65,10 +65,6 @@ test {
 	}
 }
 
-task wrapper(type: Wrapper) {
-    gradleVersion = '4.0.2'
-}
-
 clean.doFirst {
 	delete "~/.m2/repository/com/example/http-server-dsl-gradle"
 }

samples/standalone/messaging/stream-sink/build.gradle

@@ -69,8 +69,4 @@ task resolveDependencies {
 			}
 		}
 	}
-}
-
-task wrapper(type: Wrapper) {
-	gradleVersion = '4.0.2'
 }

samples/standalone/messaging/stream-source/build.gradle

@@ -110,8 +110,4 @@ task resolveDependencies {
 			}
 		}
 	}
-}
-
-task wrapper(type: Wrapper) {
-	gradleVersion = '4.0.2'
 }

samples/standalone/pact/pact-http-client/build.gradle

@@ -58,10 +58,6 @@ test {
 	}
 }
 
-task wrapper(type: Wrapper) {
-    gradleVersion = '4.0.2'
-}
-
 task resolveDependencies {
 	doLast {
 		project.rootProject.allprojects.each { subProject ->

samples/standalone/pact/pact-http-server/build.gradle

@@ -64,10 +64,6 @@ test {
 	}
 }
 
-task wrapper(type: Wrapper) {
-    gradleVersion = '4.0.2'
-}
-
 clean.doFirst {
 	delete "~/.m2/repository/com/example/http-server-pact-gradle"
 }

samples/standalone/restdocs/http-client/build.gradle

@@ -60,10 +60,6 @@ test {
 	}
 }
 
-task wrapper(type: Wrapper) {
-    gradleVersion = '4.0.2'
-}
-
 task resolveDependencies {
 	doLast {
 		project.rootProject.allprojects.each { subProject ->

samples/standalone/webclient/http-client/build.gradle

@@ -60,10 +60,6 @@ test {
 	}
 }
 
-task wrapper(type: Wrapper) {
-    gradleVersion = '4.0.2'
-}
-
 task resolveDependencies {
 	doLast {
 		project.rootProject.allprojects.each { subProject ->

samples/standalone/webclient/http-server/build.gradle

@@ -62,10 +62,6 @@ test {
 	}
 }
 
-task wrapper(type: Wrapper) {
-    gradleVersion = '4.0.2'
-}
-
 task stubsJar(type: Jar, dependsOn: ['copySnippets', 'copySources', 'copyClasses']) {
 	baseName = project.name
 	classifier = 'stubs'