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nested exception is java.lang.IllegalArgumentException: Parameter value [2020-04-20] did not match expected type [java.util.Date (n/a)]]

I want to send this request
http://localhost:8080/{url}?start=2020-04-20&end=2020-04-24&status=success&status=failed
In Transaction model
private java.sql.Timestamp addedOn;
I am trying to create a dynamic query for multiple filters following this blog:
https://attacomsian.com/blog/spring-data-jpa-specifications
Specs.java file toPredicate method
if (criteria.getOperation().equals(SearchOperation.GREATER_THAN)) {
predicates.add(builder.greaterThan(
root.get(criteria.getKey()), criteria.getValue().toString()));
} else if (criteria.getOperation().equals(SearchOperation.LESS_THAN)) {
predicates.add(builder.lessThan(
root.get(criteria.getKey()), criteria.getValue().toString()));
}
Here is my Controller code
Timestamp start = new Timestamp(dateFormat.parse(request.getParameter("start")).getTime());
Timestamp end = new Timestamp(dateFormat.parse(request.getParameter("end")).getTime());
Specs txnSpecs = new Specs();
txnSpecs.add(new SearchCriteria("addedon", start, SearchOperation.GREATER_THAN_EQUAL));
txnSpecs.add(new SearchCriteria("addedon", end, SearchOperation.LESS_THAN_EQUAL));
txnSpecs.add(new SearchCriteria("status", Arrays.asList(request_params.get("status")), SearchOperation.IN));
List<Transaction> txnList = transactionRepository.findAll(txnSpecs);
return txnList;
But when I make request I get:
nested exception is java.lang.IllegalArgumentException: Parameter value [2020-04-20] did not match expected type [java.util.Date (n/a)]]
Do I need to convert the Date value before I send it as param for the SQL query? Or I need to use other types of Date?

Do I need to convert the Date value before I send it as param for the SQL query?
No, the opposite is true, you must keep it a Date but you convert it to a String by calling criteria.getValue().toString().

Check if your dateFormat are correct to pattern of your value: yyyy-MM-dd :
DateFormat dateFormat = new SimpleDateFormat ("yyyy-MM-dd");

Firestore google.cloud.Timestamp parsing

When i receive firestore DocumentSnapshot field(which is timestamp) with:
DocumentSnapshot snapshot = message.getPayload().getDocumentSnapshot();
Object o = snapshot.get("fieldName);
everything works fine and Object o is instantiated with real data Thu Jan 10 00:00:00 CET 2019
But when i try to receive the field as google.cloud.Timestamp:
DocumentSnapshot snapshot = message.getPayload().getDocumentSnapshot();
Timestamp ts = snapshot.getTimestamp("fieldName");
or Timestamp ts = (Timestamp) snapshot.get("fieldName");
it fails with error java.util.Date cannot be cast to com.google.cloud.Timestamp
Could someone clarify this behavior and how should i access ad retrieve google.cloud.Timestamp object from DocumentSnapshot? Im having this problem only with Timestamp object, every other type parses normally.
EDIT, adding more code:
Accessing firestore:
#Bean
public FirestoreGateway registerFirestoreGateway(FirestoreGatewayProperties properties) throws IOException {
Resource resource = new ClassPathResource(properties.getFirestoreConfiguration());
InputStream configuration = resource.getInputStream();
FirebaseOptions options = new FirebaseOptions.Builder()
.setCredentials(GoogleCredentials.fromStream(configuration))
.setDatabaseUrl(properties.getDatabaseUrl())
.build();
FirebaseApp.initializeApp(options);
return new FirestoreGateway(FirestoreClient.getFirestore());
}
Firestore snapshot listener:
#EventListener(ApplicationReadyEvent.class)
public void listenToRequestCommands() {
firestoreConnection.listCollections().forEach(collectionReference -> {
collectionReference
.document(properties.getFirestoreCommand())
.addSnapshotListener((snapshot, e) -> {
Object o = snapshot.get("timestamp");
Timestamp ts = (Timestamp) snapshot.get("timestamp");
}
);
});
}
Object o parses normally to right value, while Timestamp ts for the
same event throws "java.util.Date cannot be cast to
com.google.cloud.Timestamp"
Timestamp field definition in database:

You are getting the following error:
java.util.Date cannot be cast to com.google.cloud.Timestamp
Because in your database the timestamp property is of type Date and not Timestamp. There is no way in Java to cast an object of type Date to an object of type com.google.firebase.Timestamp because there is no inheritance relationship between them.
To solve this, you need to get that property as Date, using the following line of code:
Date timestamp = snapshot.getDate("timestamp");
Edit:
When you are setting a field to be of type timestamp, you are setting it as Timestamp, which is apart of another package. See, class Timestamp extends Date. So a timestamp object is-a Date, because it inherits from the Date class.
As a conclusion, the Timestamp class from the com.google.firebase package is different from the Timestamp class from the java.sql package, which in terms is different from the Timestamp class that exists within java.security package.
Edit2:
According to your comment, when using:
(java.util.Date) snapshot.get("timestamp");
It means that the object that is returned by snapshot.get("timestamp") is casted to Date, which basically is the same thing. With other words, you tell the compiler that whatever the object that is returned, consider it a Date object. And it works because the type of your property in the database is Date and not Firebase Timestamp.

Kotlin solution that work for me:
val timestamp: Date = document.getDate("timestamp") as Date

The value of the column with data type of datetime always is 1970/01/01 in Java

Can someone please tell me why the value of my field in the database which has a data type of datetime always store the value 1970-01-01 no matter what value I input? Here is the code
#Temporal(TemporalType.TIMESTAMP)
#Column(name = "date_received")
private Date dateReceived = new Date();
and this is the code I use to insert
#PostMapping("/createJrf")
public ResponseEntity<String> createJrf(#Valid #RequestBody JobRequirement req) {
jrRepository.save(req);
return new ResponseEntity<>("Job Created", HttpStatus.CREATED);
}

Problem solved it was all in the format of my json in postman I was previously doing it as follows
"dateReceived": "20180302"
then I changed it to
"dateReceived": "2018-03-02"

Inserting MongoDB long values with Java

I'm attempting to insert a date, as a long value, into MongoDB in Java. When I attempt to insert one, it appears as NumberLong("12345"), which appears to be a string within NumberLong(). Unless this is a misunderstanding of mine.
This is my line of code--where parserSDF is a Java Date object:
BasicDBObject dbDate = new BasicDBObject("dateCreated",parserSDF.getTime());
This is how the field appears by default:
... "dateCreated" : NumberLong(0) ...
But this is how it changes when attempting to write a long:
"dateCreated" : NumberLong("1426632572797")

How do I send a DateTime or some sort of timestamp from PHP to Java using Hessian binary remoting protocol?

There is a Java service that I need to invoke from PHP that looks something like this:
getProductsForMode(java.util.Calendar date, int modeId)
I'm having trouble mapping my PHP date class to the java.util.Calendar class. I've tried a couple different approaches, all to no avail:
Approach #1 (wrapping DateTime object in a CalendarHandle that gets mapped to Java's CalendarHandle):
class CalendarHandle
{
public $type;
public $date;
function __construct($date=null)
{
$this->date = $date;
}
}
$this->hessianClient = new HessianClient(_HESSIAN_ENDPOINT, $hessianOptions);
$config = &HessianConfig::globalConfig();
$config->typeMap->mapRemoteType('com.caucho.hessian.io.CalendarHandle', 'CalendarHandle');
$time = new CalendarHandle(new DateTime($dateEvaluated));
$products = $this->hessianClient->getProductsForMode($time, 1234);
Error:
[06-Jul-2011 11:16:52] PHP Fatal
error: Uncaught exception 'HttpError'
with message 'HttpError: Malformed
HTTP header' in
/Users/jordanb/Sites/proposal-framework/trunk/plugins/srHessianClientPlugin/hessianphp/Http.php:265
Approach #2:
Mapping DateTime to java.util.Calendar
$this->hessianClient = new HessianClient(_HESSIAN_ENDPOINT, $hessianOptions);
$config = &HessianConfig::globalConfig();
$config->typeMap->mapRemoteType('java.util.Calendar', 'DateTime');
$time = new DateTime($dateEvaluated);
$products = $this->hessianClient->getProductsForMode($time, 1234);
Error:
[06-Jul-2011 11:28:50] PHP Fatal error: Uncaught exception 'HessianError' with message 'Hessian Parser, Malformed reply: expected r' in /Users/jordanb/Sites/proposal-framework/trunk/plugins/srHessianClientPlugin/hessianphp/Protocol.php:350
Has anyone had success sending a DateTime or some sort of timestamp from PHP to Java using Hessian? Thanks in advance!

Would it be practical to just use the php time() function (which returns an int and send this as a long to Java? In Java you could just pass the long to new Date(long Date).

Use unix timestamp. That's the best bet.
PHP:
$ts = time();
Pass $ts to java in someway.
Java:
long ts = getTimeFromPhp();
Date dt = new Date(ts);
Or you can use Calendar:
Calendar cal = Calendar.getInstance();
cal.setTimeInMillis(ts);