Clash of variable name when the body is just a string

Created by: gerardnico

If a body is just treated as a string, you would get a body clash name on body

ie this is wrong

RequestParameter body = requestParameters.body();
// body = body is not accepted by java
String body = body != null ? DatabindCodec.mapper().convertValue(body.get(), new TypeReference<String>(){}) : null;

with this change, you would get:

RequestParameter requestParameterBody = requestParameters.body();
String body = requestParameterBody != null ? DatabindCodec.mapper().convertValue(requestParameterBody.get(), new TypeReference<String>(){}) : 

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