I have a working maven project on eclipse which I made using the archetype for Jakarta EE with an ear packaging using windfly 21. (org.windfly.archetype – wildfly-jakartaee-ear-archetype). After i got …
Using Java stream forEach() in ScheduledExecutorService freezes
The general idea is to have a Runnable running every 10 seconds in background to check some data and if needed make changes in an object. ScheduledExecutorService is instantiated in method main() and …
How can I get a value from an array [closed]
I am trying to solve this problem, I want to use these numbers one by one, but I cannot. String a = “101”; char[] array = a.toCharArray(); for (int i = 0; i < array.length; i++) { // …
Create Jar from Checker Framework enabled build?
I’m adding Checker Framework to an existing Java Gradle build. I have Checker integrated and raising issues and that’s all working great. But now that I’ve added it, my build is no longer producing a ….
Liquibase conditional migration
I want to automate some migration processes for stack: Java, Maven, Spring-Boot, Postgres, Liquibase. Is it possible to postpone some liquibase change logs until a specific maven module version? …
I can’t generate the gRPC stubs classes
I managed to generate the classes through the .proto file but they are in the build. I would like the classes to be generated within the main because when I am going to extend the stub, it is not …
Java compiler wrongly marks varible as might already have been assigned to
For some reason java compiler marks the lower str variable as “might already have been assigned to” although this scenario is not possible (at least so I think). any idea why? I know …
How do I align a JPanel centered underneath another JPanel?
I have the following GUI that I’m working on. panel1 contains the titel and titelInput . At the moment I am setting the BorderLayout of panel1 to BorderLayout.NORTH and panel2 to BorderLayout.CENTER to see if it is possible to see both (which it is not). As far as I know, panel2 overlays panel1 because BorderLayout is always centered in the
How to access values of variables from other class?
Hey guys so I am new to OOP and trying to make my first OOP program. But then I encountered a problem. I don’t know why the values hasn’t changed even though I put a variable on the parameter of the …
Get value of TypedMap from Constraints.ValidationPayload
We’re using playframework 2.8 with java and have implemented a form validation using DI and a payload as explained in the official play documentation https://www.playframework.com/documentation/2.8.x/…