basic spring mvc and spring mvc starter integration which exposes a GraphQL endpoint

graphql-java-spring-webmvc/src/main/java/org/springframework/graphql/components/DefaultExecutionInputCustomizer.java

@@ -0,0 +1,19 @@
+package org.springframework.graphql.components;
+
+import graphql.ExecutionInput;
+import graphql.Internal;
+import org.springframework.graphql.ExecutionInputCustomizer;
+import org.springframework.stereotype.Component;
+import org.springframework.web.context.request.WebRequest;
+
+import java.util.concurrent.CompletableFuture;
+
+@Component
+@Internal
+public class DefaultExecutionInputCustomizer implements ExecutionInputCustomizer {
+
+    @Override
+    public CompletableFuture<ExecutionInput> customizeExecutionInput(ExecutionInput executionInput, WebRequest webRequest) {
+        return CompletableFuture.completedFuture(executionInput);
+    }
+}