I appeared to have discovered a problem with JavaFX Spinner in JavaFX JDK Linux 1.8.0_144. If you are pressing on the increment or decrement button whilst a spinner is removed from the scene the spinner keeps going. Output Code Analysis In com.sun.javafx.scene.control.skin.SpinnerSkin<T> com.sun.javafx.…
Making multiple requests with Spring WebClient
So my goal is to use WebClient to make multiple concurrent requests, wait until they’re all completed, then combine the results. Here is what I have so far: Basically my goal is to combine all the items from each of the feeds to create one unified feed. However, I am not quite sure what to do after the …
Double backslash under Linux bash
In the Linux bash to identify a Windows folder I have to use double backslash for example “java -jar myjar.jar C:\Users\username” while in the Windows command prompt does not need, just “java -jar myjar.jar C:Usersusername”, is it normal? Answer Yes, the backslash is used for newlines …
How to catch deserialization error in Kafka-Spring?
I’m getting up an application consuming kafka messages. I followed Spring-docs about Deserialization Error Handling in order to catch deserialization exception. I’ve tried the failedDeserializationFunction method. This is my Consumer Configuration Class This is the BiFunction Provider When I send …
IntelliJ IDEA stucks at “collecting data” while debug
I’m using IntelliJ IDEA to debug remote tomcat application. It works perfect before. However, for recent times, it always get stuck at “collecting data”, though the data is very small. I have searched on this site, and tried: Intelliji idea is very slow in debug mode and it is running perfec…
How to add a JPanel graphic to a JFrame without covering the JFrame
I’m trying to add a small tornado graphic (upside down pyramid) to my Frame. I can get the tornado by adding it to the frame in the main method but when I do that all I see is the tornado graphic and not the GUI underneath it. So, I’m now trying to add the Tornado graphic to the frame when
How to create an argument captor for a Map object in mockito in java?
How to create an argument captor for Map<String, SomeCustomClass>? I have the code that follows the following pattern: And I want to test if the method doSomethingSubClass(mapSb) was called, whereby I need to be able to check with what argument it was called. For this purpose I have the following unit t…
Spring Security returns 404 instead of 403 when using @PreAuthorize
After struggling with this for a few days (searching SO for similar questions, doing trial & error), I am tempted to give up… So the problem is I have a REST service based on Spring Boot using Spring Security and JWT for authentication. Now I want to secure some of the methods to be only called by a…
Package accessible from more than one module:
When trying to register an MBean in JMX Console I’m getting the following error message: I’m using Eclipse and I have no module-info.java file in my project structure. The error disappear when I comment my dependency for Java EE API, but the javax.management package is not part of the JAR. Answer
How to scale basic drawings?
I would like to have a list of shapes, that appears in my window. Whenever I’m changing the size of the window, I would like to scale all of my drawings. I already prepared classes, that store information about random shapes in a list (rectangles, ovals, etc.). I have no problem with painting them all, …