Program: 13156
Project: 13156
Buggy source:
/** 
 * Returns a Function to format a resource from the repository to that expected by the provider consumer. First  object properties are removed and   {@code secondId} (or {@code firstId} if {@link #isRevereseRelationship}) will be converted  to   {@code _ref}This will convert repo resources in the format of: <pre> { "_id": "someId", "_rev": "someRev", "firstId": "/managed/object/uuid", "firstPropertyName": "roles", "secondId": "/managed/roles/uuid" "properties": { ... } } </pre> To a provider response format of: <pre> { "_ref": "/managed/roles/uuid" "_refProperties": { "_id": "someId", "_rev": "someRev", ... } } </pre>
 */
protected Function<ResourceResponse,ResourceResponse,NeverThrowsException> formatResponseNoException(final Context context,final Request request){
  return new Function<ResourceResponse,ResourceResponse,NeverThrowsException>(){
    public String resourcePath=getResourcePath(context,request).toString();
    @Override public ResourceResponse apply(    final ResourceResponse raw){
      final JsonValue formatted=json(object());
      final Map<String,Object> properties=new LinkedHashMap<>();
      final Map<String,Object> repoProperties=raw.getContent().get(REPO_FIELD_PROPERTIES).asMap();
      final String ref;
      if (isRevereseRelationship && raw.getContent().get(REPO_FIELD_FIRST_ID).asString().equals(resourcePath)) {
        ref=raw.getContent().get(REPO_FIELD_SECOND_ID).asString();
      }
 else {
        ref=raw.getContent().get(REPO_FIELD_FIRST_ID).asString();
      }
      if (repoProperties != null) {
        properties.putAll(repoProperties);
      }
      properties.put(FIELD_CONTENT_ID,raw.getId());
      properties.put(FIELD_CONTENT_REVISION,raw.getRevision());
      formatted.put(SchemaField.FIELD_REFERENCE,ref);
      formatted.put(SchemaField.FIELD_PROPERTIES,properties);
      return newResourceResponse(null,null,formatted);
    }
  }
;
}

Fixed version (ground truth):
/** 
 * Returns a Function to format a resource from the repository to that expected by the provider consumer. First  object properties are removed and   {@code secondId} (or {@code firstId} if {@link #isReverseRelationship}) will be converted  to   {@code _ref}This will convert repo resources in the format of: <pre> { "_id": "someId", "_rev": "someRev", "firstId": "/managed/object/uuid", "firstPropertyName": "roles", "secondId": "/managed/roles/uuid" "properties": { ... } } </pre> To a provider response format of: <pre> { "_ref": "/managed/roles/uuid" "_refProperties": { "_id": "someId", "_rev": "someRev", ... } } </pre>
 */
protected Function<ResourceResponse,ResourceResponse,NeverThrowsException> formatResponseNoException(final Context context,final Request request){
  return new Function<ResourceResponse,ResourceResponse,NeverThrowsException>(){
    public String resourceFullPath=getResourceFullPath(context,request).toString();
    @Override public ResourceResponse apply(    final ResourceResponse raw){
      final JsonValue formatted=json(object());
      final Map<String,Object> properties=new LinkedHashMap<>();
      final Map<String,Object> repoProperties=raw.getContent().get(REPO_FIELD_PROPERTIES).asMap();
      final String ref;
      if (isReverseRelationship && !raw.getContent().get(REPO_FIELD_FIRST_ID).asString().equals(resourceFullPath)) {
        ref=raw.getContent().get(REPO_FIELD_FIRST_ID).asString();
      }
 else {
        ref=raw.getContent().get(REPO_FIELD_SECOND_ID).asString();
      }
      if (repoProperties != null) {
        properties.putAll(repoProperties);
      }
      properties.put(FIELD_CONTENT_ID,raw.getId());
      properties.put(FIELD_CONTENT_REVISION,raw.getRevision());
      formatted.put(SchemaField.FIELD_REFERENCE,ref);
      formatted.put(SchemaField.FIELD_PROPERTIES,properties);
      return newResourceResponse(null,null,formatted);
    }
  }
;
}