I am using Calendar class to get year, month and day: Today is 11 Dec 2021 (2021-12-11). But toast alert shows 2021-11-11. Also I tried to set calendar time to a new Date class but still wrong Answer tl;dr I am using Calendar class Don’t. Use only java.time classes. 2021 Details The Answer by Modi is correct. Furthermore, never use
How to create JOptionPane with multiple list selections and extract all the choices?
I am interested in creating a JOptionPane or any interactable pop-up Pane that contains multiple list selections. I also wish to extract the selections the user made. The code below shows an MRE where I generate two different JOptionPanes with list selections and extract the choice from each. Essentially, I am trying to combine the two. What one of them
How to consume infinite flux multiple times
This is what I’m trying to achieve: When somebody requests http://localhost/runIt, I would like to return data from cache that would be refreshed every 6 seconds. Below, I have a flux (always same one that is stored in map) that is first time instantiated and starts emitting numbers 0,1,2,3,4… to infinity. Is it possible to make this Spring MVC Controller
Log4j vulnerability – Is Log4j 1.2.17 vulnerable (was unable to find any JNDI code in source)?
With regard to the Log4j JNDI remote code execution vulnerability that has been identified CVE-2021-44228 – (also see references) – I wondered if Log4j-v1.2 is also impacted, but the closest I got from source code review is the JMS-Appender. The question is, while the posts on the Internet indicate that Log4j 1.2 is also vulnerable, I am not able to
SSL for JMX with RMI
We have a Java application which has had a JConsole connection with password authentication for a while. In improving the security of this, we are trying to encrypt the connection made from JConsole to the application. Up until now, we have launched our application with the following launch command: With this, we can flawlessly access the JMX methods of MyApplication
java model mock response json
I am creating a Rest service which calls an external service. I have this problem: the external service I call responds in two ways depending on the case of Success or Failed. This is json: Well I created 3 simple classes: class XXX… private String result, status; …. getter & setter class Response… private String codiceCase, guidCase; … getter &
How to call a method and run it asynchronously?
Is there a way to run getUsers() asynchronously only from main() in Java 8? Running getUsers() on the main thread would take 300 seconds. I wish to make it in less than 180 seconds with 4 cores. Without modifying getUsers() (the objective), running the following is still taking 300 seconds: Answer You can divide your loop of users creation into
How would you add a time offset using the same name as the class name for the parameter
I need to fill out the method for the time offset but using the class name as a parameter name and I don’t know how to do it I have tried adding the variables together but I get errors saying “You can’t convert Time to an int” So I have no clue on what to do, please respond soon thank
How to handle synchronous responses with Spring Cloud Data Flow
We are in the process of designing the migration of our monolithic Java application to microservices to meet various client requirements such as scalability, high availability, etc. The core function of our application is data processing, i.e. retrieve data from a source, put it through 0 or more transformations, and finally push the result to a destination. For this reason,
Specifying a null partition in a Kafka Producer
The Kafka ProducerRecord api has a few different constructors. I want to be able to specify the topic, timestamp, key and value; but not the partition. The closest option I can see is the following, …