DTSPB-4818 update ResponseDecorator

Author: MarcusHMCTS

src/main/java/uk/gov/hmcts/probate/client/ResponseDecorator.java

@@ -37,10 +37,9 @@ public String bodyToString() {
     }
 
     public ErrorResponse mapToErrorResponse() {
-        ObjectMapper mapper = new ObjectMapper();
         ErrorResponse errorResponse = null;
         try {
-            errorResponse = mapper.readValue(this.bodyToString(), ErrorResponse.class);
+            errorResponse = this.objectMapper.readValue(this.bodyToString(), ErrorResponse.class);
         } catch (IOException e) {
             log.debug("Response contained empty body");
         }

src/main/java/uk/gov/hmcts/probate/client/business/BusinessServiceConfiguration.java

@@ -1,5 +1,6 @@
 package uk.gov.hmcts.probate.client.business;
 
+import com.fasterxml.jackson.core.JsonGenerator;
 import com.fasterxml.jackson.databind.DeserializationFeature;
 import com.fasterxml.jackson.databind.ObjectMapper;
 import com.fasterxml.jackson.databind.SerializationFeature;
@@ -20,6 +21,7 @@ Encoder feignEncoder() {
         ObjectMapper objectMapper = new ObjectMapper();
         objectMapper.enable(SerializationFeature.WRAP_ROOT_VALUE);
         objectMapper.enable(DeserializationFeature.UNWRAP_ROOT_VALUE);
+        objectMapper.disable(JsonGenerator.Feature.AUTO_CLOSE_JSON_CONTENT);
         return new JacksonEncoder(objectMapper);
     }