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Java JSON unit test pass with wrong value

I have the following function:
public class NorthboundApiLogicTest {
#Test
public void testIfParametersValuesAreCorrect() {
String body = "{\"exception\":\"world\",\"error\":\"Not Found\",\"message\":\"hello\""
+ ",\"timestamp\":\"2020-01-07T12:26:48.334386Z\",\"status\":\"404\"}";
try {
JSONAssert.assertEquals("{message:hello, exception:world, status:403, error:Not Found}",
body, false);
} catch (Exception e) {
System.err.println(e);
}
System.out.println(body);
}
}
I run this test with Maven, and strangely it pass successfully.
However, it should not, because I assert that status=403 but the value is 404. What am I doing wrong?

It's failing to parse the JSON before it even performs an assertion on the structure, and you're simply logging that via your catch.
catch (Exception e) {
System.err.println(e);
}
You need to let that exception be thrown from the method, or catch it and call fail() with an appropriate message.
And then fix the issue of your non-parseable JSON, of course!

How to skip if any exception come while storing data to the database using java?

I have a Entity named MyData. And I am trying to add MyData entity's values to database. Like below:
for (MyDataParent myDataParent : myDataParentList) {
MyData myData = new Mydata();
myData.setName("Hello");
myData.setNumber("1234567890");
myData.setGender("Male");
this.storeAndflush(myData);
}
And I want to skip inserting this myData entity if any exception occurred while storing data and continue to the loop. What is the way to do?

Use the try-catch block and log the relevant exception. If you are using SQL database it most likely will be SQLException.
for (MyDataParent myDataParent : myDataParentList) {
MyData myData = new Mydata();
myData.setName("Hello");
myData.setNumber("1234567890");
myData.setGender("Male");
try {
this.storeAndflush(myData);
} catch (SQLException ex) {
logger.log(ex);
}
}
Try not to catch all possible exceptions e.g. don't catch Exception or Throwable. Handle only these which are related to persistence to ensure that you are not hiding implementation errors.

Java library for MongoDB-like JSON processing

We have a use-case of processing JSON documents in a Java application. Although we do not use MongoDB, I would like to know if there are any Java library for JSON processing that supports similar MongoDB functionalities like querying, filtering, mapping, aggregating, unwind, etc.

You can map your json string to java object and query the object itself. There are many library that can achieve this. You can use Apache Commons for querying object property using PropertyUtils class and Google-Gson for mapping your json string to java object. Refer below's code.
String json = "{status : true, statusMsg : 'Success', preferredSchedule : {dateStr : '20 Apr 2015'}}";
Gson gson = new Gson();
VpVO vpVO = gson.fromJson(json, VpVO.class);
try {
Object dateObj = PropertyUtils.getProperty(vpVO, "preferredSchedule.dateStr");
System.out.println(dateObj); // result will print 20 Apr 2015
} catch (IllegalAccessException e) {
e.printStackTrace();
} catch (InvocationTargetException e) {
e.printStackTrace();
} catch (NoSuchMethodException e) {
e.printStackTrace();
}

Java : Using Spring remoting for getting objects from server

I am working on a JavaSE application in which I would like to connect to a Spring-MVC based server to get List of objects, Objects itself. I looked up on net, and came upon JSON. While I agree that it is working, but it is very inefficient as I have to go through the 2 while loops and seems not so sophisticated. For this reason I researched and found out I can use Spring remoting to achieve the task.
One thing I would like to do is to send over objects directly, instead of converting them by JSON, and sending.
I am pasting my code below for what I have with JSON, I would appreciate if I know this seems more better or is Spring remoting more sophisticated in long term too. A replacement code for the client side would be nice. Thanks.
Client code :
public void getCanvas(){
JsonFactory jsonFactory = new JsonFactory();
String canvas = "";
try {
JsonParser jsonParser = jsonFactory.createJsonParser(new URL(canvasURL));
JsonToken token = jsonParser.nextToken();
while (token!=JsonToken.START_ARRAY && token!=null){
token = jsonParser.nextToken();
if(token==null){break;}
System.out.println("Token is "+jsonParser.getText());
}
while (token!=JsonToken.END_ARRAY){
token = jsonParser.nextToken();
if(token == JsonToken.START_OBJECT){
canvas = jsonParser.toString();
System.out.println("Canvas is "+canvas);
}
}
} catch (IOException e) {
e.printStackTrace();
}
System.out.println("Canvas is "+canvas);
}
Server code :
#RequestMapping(value = "/getcanvas",method = RequestMethod.GET)
public #ResponseBody String getCanvasforFX(){
System.out.println("Canvas was requested");
Canvas canvas = this.canvasService.getCanvasById(10650);
canvas.setCanvasimage(null);
ObjectMapper objectMapper = new ObjectMapper();
try {
System.out.println("Canvas value is "+objectMapper.writeValueAsString(canvas));
return objectMapper.writeValueAsString(canvas);
} catch (IOException e) {
e.printStackTrace();
return null;
}
}
In the client-code I am getting the information, but again I have to read the fields, set them in object and update the UI, even though I am programming the server also, I want to directly receive an object, and cut out the middle-man(JSON). Thanks.

Sending XML from Java to MSMQ - bodyType from VT_EMPTY to VT_BSTR

We work on a Java (Java EE) application, and we generate XML files in order to send them to a remote .NET application with MSMQ reading on their side.
The XML file is generated by JDom, like so :
// add elements...
Document doc = new Document(root);
String XmlData = new XMLOutputter(Format.getPrettyFormat().setOmitEncoding(true)).outputString(doc);
try {
SendFile( XmlData, "title" , "path");
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
} catch (MessageQueueException e) {
e.printStackTrace();
}
Then we use this function, using the MsmqJava library to send the file :
private void SendFile(String data, String title, String outputPath) throws UnsupportedEncodingException, MessageQueueException{
String qname="name_of_the_queue";
String fullname= "server_path" + qname;
String body = data;
String label = title;
String correlationId= "L:none";
try {
Queue queue= new Queue(fullname);
Message msg= new Message(body, label, correlationId);
queue.send(msg);
} catch (MessageQueueException ex1) {
System.out.println("Put failure: " + ex1.toString());
}
}
They correctly receive the file, but they told us that the bodyType was set to "VT_EMPTY" while they wanted "VT_BSTR", and we haven't find a clue about how to fix this. If you know another lib who does the job, or a workaround to this one, we can change with no problem.
Thanks !

Looking at the documentation for the library you use, it is not possible using that library.
Jmsmqqueue also doesn't provide the functionality you need.
It seems sun also had an adapter: https://wikis.oracle.com/display/JavaCAPS/Sun+Adapter+for+MSMQ