Fix response body caching for async requests

Removes premature body retrieval when content size is greater than zero, ensuring body is only retrieved after async completion. This prevents potential issues with incomplete response bodies in asynchronous scenarios.

Author: david-randoll

spring-web-captor/src/main/java/com/davidrandoll/spring_web_captor/publisher/response/CachedBodyHttpServletResponse.java

@@ -38,9 +38,7 @@ public CompletableFuture<byte[]> getResponseBody() throws IOException {
 
         this.responseBodyFuture = new CompletableFuture<>();
 
-        if (this.getContentSize() > 0) {
-            getBody(responseBodyFuture);
-        } else if (request.isAsyncStarted()) {
+        if (request.isAsyncStarted()) {
             request.getAsyncContext().addListener(new AsyncListener() {
                 public void onComplete(AsyncEvent asyncEvent) throws IOException {
                     getBody(responseBodyFuture);