Category "java"

How do you close a AsynchronousSocketChannel cleanly?

My server uses a AsynchronousServerSocketChannel that listens for client connections using a CompletionHandler. When a client connection is accepted, the Async

How do we implement q Params in Helidon SE

I am new to Helidon SE and would like to know if there is a way to implement q params in REST service created via Helidon SE. Any help in this regard is truly a

Why does easywsdl prepend each class with 3 random characters?

I have been using the easywsdl Android Studio plugin to autogenerate ksoap2 code based on a wsdl. Each time I generate the code, easywsdl prepends 3 random upp

Micrometer - Prometheus Gauge displays NaN

I am trying to generate Prometheus metrics with using Micrometer.io with Spring Boot 2.0.0.RELEASE. When I am trying to expose the size of a List as Gauge, it

How to install and setup Cucumber jar files in Eclipse for WebDriver Testing

I am fairly new to Java, eclipse, Cucumber and Selenium. I am just beginning to learn these. Overall, I am fairly new to StackoverFlow. I got problem that I am

Gradle can not compile the code with the generated sources by annotationProcessor

How to make the gradle build/compile a project using generated source by annotationProcessor? I have a project with 2 modules app-annotation -> is a module t

How to use graaljs ? Is there a place where to get a .jar file/files?

I use Java 8 and I use the default JavaScript Engine (Nashorn). I would like to see how it compares with the 'highly hyped' GRAAL JS. See: https://github.com

Quarkus custom test resources dir

We are using multiple source sets for tests in our project which defined in gradle like this: sourceSets { test { java { srcDir file('sr

Resolving Pageable in Webflux

I spent a lot of time to find a solution about Pageable in Webflux, unfortunately, at the time of writing this, Webflux does not support Pageable so I came up w

Hex String to Byte array conversion java

I know this question is asked a lot of times but please hear me out. Previously I have tried following methods to convert hex string to byte array. say my key

Uniform Cost Search Implementation

I am trying to implement the Uniform Cost Search after watching the "Intro to AI" course in Udacity. However, my algorithm is not getting the correct path. Have

What is the Java version that the Flink can support in 2022?

Let's say if I start a new Flink Java project, and if I look for "stable Flink Java production experience", which version should I need to use? The official doc

Discord Bot unable to send messages

I'm developing a discord bot, but I'm having some problems that I've never had. My discord bot is unable to send messages. The bot doesn't contain any deprecate

java.lang.AbstractMethodError: com.ibm.db2.jcc.t4.b.isValid(I)Z

Good evening, I'm whith a problem on a project whith EJB Timer, I don't know what can I do to fix it. there are a few methods in my project, all of them works

No result using makeStyles Material UI in react 18

Hi Im exploring ReactJs and Material UI and Im following outdated tutorials. I having a problem with this material UI makestyles how do I use this? This is the

Remove default white space document itext 7

i use itext 7.1.9 for create the carrier lable bill. i want my bill have full with and height of the document, i set with table 100 percent or large width but m

java.lang.ClassNotFoundException: org.eclipse.jetty.Server

I am trying to run a maven project when I run mvn install everything is ok I got build success qnd when I tried to lunch the project I got the following excepti

Spring maven dependency issue

I have a problem that my pom.xml throw an error ArtifactTransferException: Failure to transfer org.springframework:spring-tx:jar:3.2.4.RELEASE from http:

Exception: org.springframework.web.bind.MissingServletRequestParameterException: Required String parameter 'params' is not present

When i clicked the edit button the values from dataTable should display in form. But somehow it doesn't work. Below are my codes for reference. Call DataTable:

How to parse the ASN.1 object and get the data using bouncycastle in java

I have an ASN.1 data which contain some URL info and certificates data. Now I am trying to parse the data. I am using the dump method which is shown below. p