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Subject [GitHub] [jmeter] vlsi commented on a change in pull request #651: Don't assume we have correct JSON at edit time
Date Sat, 13 Mar 2021 20:02:52 GMT

vlsi commented on a change in pull request #651:

File path: src/protocol/http/src/main/java/org/apache/jmeter/protocol/http/util/
@@ -79,27 +76,32 @@ public static boolean isGraphQLContentType(final String contentType) {
      * @throws RuntimeException if JSON serialization fails for some reason due to any runtime
environment issues
     public static String toPostBodyString(final GraphQLRequestParams params) {
-        final ObjectMapper mapper = new ObjectMapper();
-        final ObjectNode postBodyJson = mapper.createObjectNode();
-        postBodyJson.set(OPERATION_NAME_FIELD,
-                JsonNodeFactory.instance.textNode(StringUtils.trimToNull(params.getOperationName())));
+        final StringBuilder result = new StringBuilder();

Review comment:
       Just for the reference, here's how you generate raw JSON with JsonWriter:
       private static final JsonFactory factory = JsonFactory.builder().build();
       public static String toPostBodyString(final GraphQLRequestParams params) {
           StringWriter sw = new StringWriter();
           try (JsonGenerator gen = factory.createGenerator(sw)) {
               gen.writeStringField(OPERATION_NAME_FIELD, nullIfBlank(params.getOperationName()));
               String variables = params.getVariables();
               gen.writeStringField(QUERY_FIELD, nullIfBlank(params.getQuery()));
           } catch (IOException e) {
               throw new IllegalStateException("Can't write params to JSON", e);
           return sw.toString();
       private static String nullIfBlank(String value) {
           if (value == null) {
               return null;
           value = value.trim();
           return value.isEmpty() ? null : value;
   However, I still believe that is the wrong direction. It fixes one issue and creates another

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