Why Java produces an hour behind Casablanca real time?

Exception or error: While writing some experiments on the Java Data/Time API. I was wondering why this code doesn’t function as expected: ZonedDateTime CasaNow = ZonedDateTime.now(ZoneId.of(“Africa/Casablanca”)); System.out.println(CasaNow); // 2020-02-20T11:32:28.063419Z[Africa/Casablanca] I was expecting it to print “2020-02-20T12:32:28.063419Z[Africa/Casablanca]” like in my clock. This is the exact time in Casablanca but the program produces an hour behind that …

java – How to list all producers of a kafka cluster?

Exception or error: I am able to list all Kafka Consumer with KafkaAdminClient: AdminClient client = AdminClient.create(conf); KafkaFuture<Set<String>> names = ltr.names(); ArrayList<ConsumerGroupListing> consumerGroups = new ArrayList<>(client.listConsumerGroups().all().get()); ConsumerGroupListing consumerGroup = consumerGroups.get(0); Is it possible to list all registrated producers in a similar way? How to solve: In contrast to consumers, it is not possible to retrieve …

java – Use spring reactive webclient to pass protobuff request

Exception or error: I am using spring framework reactive webclient to make a call like below webClient.post() .uri(“/v/score/$model”) .contentType(MediaType.APPLICATION_JSON) .bodyValue(gson.toJson(request)) .accept(MediaType.APPLICATION_JSON) .header(“Client-Id”, clientId) .awaitExchange() .awaitBody<ScoringResponse>() which is working fine. Now I wan to pass the request as a protobuff object instead of json. How can I do that ? How to solve: Set the media …

java – How to iterate a JSONObject (gson)

Exception or error: I have a JsonObject e.g JsonObject jsonObject = {“keyInt”:2,”keyString”:”val1″,”id”:”0123456″} Every JsonObject contains a “id” entry, but the number of other key/value pairs is NOT determined, so I want to create create an object with 2 attributes: class myGenericObject { Map<String, Object> attributes; String id; } So I want my attributes map to …

java – How to create a TriFunction that call a one parameter method dynamically?

Exception or error: I want to create a TriFunction at runtime that invoke a one parameter method but I obtain this exception: java.lang.invoke.LambdaConversionException: Incorrect number of parameters for instance method invokeVirtual java.lang.ClassLoader.getDefinedPackage:(String)Package; 0 captured parameters, 3 functional interface method parameters, 2 implementation parameters Here is my code: Lookup classLoaderConsulter = MethodHandles.lookup().in(MyClass.class); MethodHandle methodHandle = classLoaderConsulter.unreflect(ClassLoader.class.getDeclaredMethod(“getDefinedPackage”, …

java – How to get Double from String based on locale?

Exception or error: I’m looking for a short and elegance solution, such as some method. If it’s possible to use method like this: public Double getDoubleFromString(String string); (inside this method it’s needed to get current locale because of different GroupingSeparator and DecimalSeparator in different locales) How to solve: You should be avoiding double precision by …

java – AWS lambda dynamodb connection error – "table name must not be null or empty"

Exception or error: private static final String Store_Urls = System.getenv(“Store_Urls”); … AmazonDynamoDB client = AmazonDynamoDBClientBuilder.defaultClient(); DynamoDB dynamoDb = new DynamoDB(client); … dynamoDb.getTable(Store_Urls).putItem(new PutItemSpec().withItem(new Item().withString(“url”, url.getUrl()))); Using API gateway. Works fine without dynamodb. How to solve: More exceptions or solve method

java – Why android program doesnt work on my phone( it work on virtual phone fine)

Exception or error: try { val adresstext= findViewById(R.id.editText3)as TextView fusedLocationClient = LocationServices.getFusedLocationProviderClient(this) fusedLocationClient.lastLocation.addOnSuccessListener { location -> location var locationx=location.longitude var locationy=location.latitude val name = findViewById(R.id.textView) as TextView name.text=(locationx.toString()+” “+locationy.toString()) var geocoder: Geocoder var listadress :List<Address> geocoder = Geocoder(this, Locale.getDefault()); listadress =geocoder.getFromLocation(locationy,locationx,1) var adress=listadress[0].getAddressLine(0) var city =listadress[0].locality.get(0) var state = listadress[0].adminArea.get(0) var country = listadress[0].getCountryName() var …