Category "java"

Math.ceil for positive value greater than zero? [duplicate]

The following code is giving me a wrong answer and I can't understand why. int x = 10; int y = 15; System.out.println((int)Math.ceil(

Eclipse format bracket switch and space

i'm searching in eclipse's formatting option but i cannot find anything relative to what i want. Basically i want turn this switch (event) { cas

Quarkus - logback.xml: cannot add jar

Recently I found this Quarkus extension that allows to use logback.xml for configuring the logger (JBoss LogManager is still the implementation). I've added the

Java + JSON: list of anonymous objects (key + value) with different key names

Maybe it's simple, but I'm stuck... I have an app using Spring Boot and springframework.web.client.RestTemplate, so there's Jackson on backseat doing JSON job a

How to fire liquibase rollback script from spring application

I am using spring with liquibase to update my database. Since know I have not need to user rollback functonality, but the times come where I would like to make

joinColumns in Hibernate for standard relations?

In the following example, there are 3 entities which have relations e.g. @ManyToMany, @OneToMany and @ManyToOne: Student: @Entity @Data public class Student {

org.graalvm.polyglot.PolyglotException: ReferenceError: document is not defined

I am using Spring boot 2.4.4, JDK 1.8, and created ScriptEngine as shown. Page loaded perfectly for the first time but the second time it throws the exception

Lombok - Hibernate @OneToOne in same class - StackOverFlowError

I'm working with 2 tables: Person and City. I have a @ManyToOne relationship which worked fine. (many persons can belong to one city). Then I needed to create a

how to write junit for this code service layer in springboot

i am new in junit I want to test this method with junit5 when i try to test this custom exception like this: CustomExceptionMessage exception = assertThrows(Cu

Why can't the instance member be accessed from the lambda of the enum constructor?

In the code below, I am trying to output the value of a symbol that is an instance variable of Operation from a PLUS constant. But I can't access that variable.

Renv and Java: "Error in rJava::.jinit() : Unable to create a Java class loader"

I have a script that works perfectly when I'm not using Renv. However, when running it in a project with Renv enabled, the last command line returns the followi

Convert String array to an Int array and total it

I need to create a program that accepts input from a file. I need to ask the user to enter two(2) variables, the interest rate and months for the loan. I then c

Encoding issues using tycho surefire plugin

I've been turning my head around with this issue and cannot find an explanation for what is happening here. I'm using tycho surefire plugin to build a set of ec

I am getting this error while implementing cuberto liquid swipe animation -Could not GET 'https://maven.pkg.github.com/Cuberto/liquid-swipe-android/

I was implementing the cuberto liquid swipe animation in my app and after adding the github.properties and the dependencies as I added the code to build.gradle

Admob's Interstitial impression CTR is high

I have an android app with only interstitial ads on it and i am showing them on natural transitions like showing them on bottom view navigation item's onClick a

Eclipse-Selenium-Alternative to Thread.sleep()

I am relatively new to the Test Automation and in particular to the Selenium. I am using Selenium Web-driver, Eclipse. One of the biggest problems I am experien

ActiveMQ crashes after upgrading to Log4j 2

I am facing issue while starting ActiveMQ 5.14.3 after upgrading from Log4j 1.2.17 to Log4j 2.17.1. Replaced log4j-1.2.17 with log4j-1.2-api-2.17.1.jar, log4j-a

How to handle "java.lang.UnsatisfiedLinkError" when the library path is satisfied?

I'm trying to export a c++ library function through JNI, I've this header file called "Pylon.h" here's the source code: /* DO NOT EDIT THIS FILE - it is machine

Spring Api-Gateway: (M1) java.lang.UnsatisfiedLinkError: no netty_resolver_dns_native_macos_aarch_64

Just to clearify this only occurs on M1 Mac, the intel version doesn't seem to have this problem. JDK 17 openjdk version "17.0.1" 2021-10-19 OpenJDK Runtime Env

Mapping only one row with JOOQ MULTISET

how to use MULTISET to map only one row rather than a list of rows. Classes: class User { private Integer id; private String name; private Integer p