gistfile1.java

@ApiModel("Outage Message")
public class OutageDto {
	private String applicationName;
	private DateTime outageDate;
	private String message;
	
	public OutageDto() {}
	public OutageDto(Locale locale, Outage outage) {
		this.applicationName = "My App";
		this.outageDate = new DateTime(outage.getStartTime());
		this.message = LtoUtils.isFrench(locale) ? outage.getFrenchMessage() : outage.getEnglishMessage();
	}
	
	@JsonProperty("application_name")
	@ApiModelProperty(value = "The name of the Application this Outage is for")
	public String getApplicationName() {
		return applicationName;
	}
	
	public void setApplicationName(String applicationName) {
		this.applicationName = applicationName;
	}
	
	@JsonSerialize(using = JodaDateTimeSerializer.class)
	@JsonProperty("outage_date")
	public DateTime getOutageDate() {
		return outageDate;
	}
	
	public void setOutageDate(DateTime outageDate) {
		this.outageDate = outageDate;
	}
	
	@JsonProperty("message")
	public String getMessage() {
		return message;
	}
	
	public void setMessage(String message) {
		this.message = message;
	}
}

@ctataryn How about making your model annotated like so, i.e. annotating the fields instead of the getters... if that doesnt work try annotating the setters...

@ApiModel("Outage Message")
public class OutageDto {
       @JsonProperty("application_name") 
    private String applicationName;
       @JsonProperty("outage_date")
    private DateTime outageDate;
       @JsonProperty("message") 
    private String message;

    public OutageDto() {}
    public OutageDto(Locale locale, Outage outage) {
        this.applicationName = "My App";
        this.outageDate = new DateTime(outage.getStartTime());
        this.message = LtoUtils.isFrench(locale) ? outage.getFrenchMessage() : outage.getEnglishMessage();
    }


    @ApiModelProperty(value = "The name of the Application this Outage is for")
    public String getApplicationName() {
        return applicationName;
    }

    public void setApplicationName(String applicationName) {
        this.applicationName = applicationName;
    }

    @JsonSerialize(using = JodaDateTimeSerializer.class)
    public DateTime getOutageDate() {
        return outageDate;
    }

    public void setOutageDate(DateTime outageDate) {
        this.outageDate = outageDate;
    }

    public String getMessage() {
        return message;
    }

    public void setMessage(String message) {
        this.message = message;
    }
}