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Pagination for data over 20000 results
I have 20000 records coming from server (Salesforce) I am limiting only 5000 records per a...
Deserializing an array when using lombok
I have a class containing an array of objects, and get the following exception when attempting...
How to force grouping the lessons for the same series of students in the same Timeslot and the same Room Timefold/Optaplanner?
I want to enforce the student groups from the same series of students to be in...
YETI programming language
Yeti is ML style functional programming language, that runs on the JVM. message = "Hello world";...
Approperiate tools and ways to write automated API testing in Java with login page
I want to write automated API tests (in Java) for our micro-service. There are a lot...
Java Polymorphism & Object Assignment
I'm new to Java and doing an exercise sheet, but there's something I could not understand....
how to use konanc to link a jar,The console shows that the jar package cannot be found
I have a question. when i use konanc to link a jar, like that konanc -l...
Kafka consumer handling an exception with external api
I have a work scenario that follows as such Producer loads data from a data lake...
Java keystore.load(null, null) very slow in Windows 10
The loading of keystore in Windows is very slow. It takes around 10 seconds to load...
How to Mock Static Methods With Mockito
Learn how to mock static methods with Mockito. Master the art of unit testing for robust...
How to speed up the While loop
I am writing a Spigot plugin that, upon death, should revive the player in a random...
How to Read Status from InputStream of ESC/POS Printer in Java 17?
I'm working on integrating a printer (TG2480-H) functionality into my Java 17 application using the ESC/POS...
Software Thrives Unless You Kill it First: Premature Optimization and a Tale of Java GC
Don't go over the board with optimizations, let the language work for you. Story tell. Java...
C# Secure Messaging decryption method
I'm trying to implement this decryption method from java to c#: https://github.com/ecsec/open-ecard/blob/f66ae48e7bbb2bb27a524e12d3febabf162c17c7/ifd/ifd-protocols/pace/src/main/java/org/openecard/ifd/protocol/pace/SecureMessaging.java#L198C3-L198C90 /** * Decrypt the...
Spring Security invalidates its own csrf token
I am trying to secure my spring boot application with spring securitys own csrf library. When...
Broken bar does not supported when I sent JMS byte message to IBMMQ Cics
Our application connects to IBM MQ CICS using JMS. It sends the CIH header, program name,...
JpaSystemException using Criteria, DB2zDialect and Pagination
so I have the following setup of a spring-boot application: org.springframework.boot:spring-boot-starter:3.2.4 com.ibm.db2:jcc:11.5.8.0 java.version=21 org.hibernate.orm:hibernate-core:6.4.4.Final connecting to...
Switch Statements And Switch Expressions In Java: The differences
Among the control flow statements in Java, Switch is arguably the most delicate. Many programmers, even...
Dynamically identify regex pattern from given List of Strings
Dynamically identify regex pattern from the given list of String abc12345 abc22434 abcewewew abc232323 If you...
Im curious how array indexing works here because this works but im confused why
public Polynomial add(Polynomial other){ int max = Math.max(coefficients.length, other.coefficients.length); int[] newPoly = new int[max]; for (int...
How to set ssl context dynamically in resttemplate or restclient?
I have created a rest template with connection pooling and ssl context as Bean.. But I...
Intermittently getting java.lang.NoClassDefFoundError: net/schmizz/sshj/common/DisconnectReason in sshj-0.35.0.jar
We have a networking service which runs inside a container and needs to execute commands on...
Spring 3 - Security: How to rebuild authManager () usage?
I try to go from Spring-Boot 2.7 to 3.1 - its regarding Security. What I have...
