spring-cloud-contract-maven-plugin does not escape double quotes in json strings

[huberchrigu]

Describe the bug
I generate contracts over Spring REST docs and convert them to stubs with the maven plugin. In a response I have a JSON String with escaped double quote. The stub should look like this:

{
  "id" : "1e23e0de-132c-4635-b2b9-2094783069ab",
  "request" : {
    "urlPath" : "",
    "method" : "GET"
  },
  "response" : {
    "status" : 200,
    "body" : "{\"text\":\"Text with \\\"double quotes\\\"\"}",
    "headers" : {
      "Content-Type" : "application/json"
    }
  },
  "uuid" : "1e23e0de-132c-4635-b2b9-2094783069ab"
}

But the maven plugin generates the body value as

"{\"text\":\"Text with \"double quotes\"\"}"

. This stub won't work because it will lead to deserialization errors.

Sample
Run mvn install in this repository: https://github.com/huberchrigu/spring-cloud-contract-issue. target/generated-snippets/stubs/test.json will look ok. But target/stubs/.../mappings/test.json will not. Latter is packaged into the stubs artifact, therefore the build does not create valid stubs right now.

[prashant-mns]

I am seeing similar issue. If i hardcode the graphql json request body string in yml contract file then generated test converts triple \ to single \ . but if i put that string in a separate request.json then generated test works fine on producer side. but then generated stub doesn't match on consumer side. Can following code be responsible for this? @marcingrzejszczak

https://github.com/spring-cloud/spring-cloud-contract/blob/main/spring-cloud-contract-verifier/src/main/java/org/springframework/cloud/contract/verifier/util/DelegatingJsonVerifiable.java#L269

	private String escapedHackedJavaText(String value) {
		return StringEscapeUtils.escapeJava(value).replace("\\\"", "\"");
	}`

[marcingrzejszczak]

It's possible @huberchrigu can you rewrite the sample to use Java? That way it will be easier for me to debug what's going on

[huberchrigu]

@marcingrzejszczak I did the same in Java: https://github.com/huberchrigu/spring-cloud-contract-issue/tree/master/java