My application registers a listeners to a SQS queue (queue itself is populated by a SNS topic). When I start the application, message consumer is working as expected but after a while it stops to receive any messages. Can it be that consumer is shutting down after a while? Suggestions or comments would be muc…
Where is the description of Constant Folding in the Java Language Specification, Java SE 11 Edition (JLS SE 11)?
As far as I know, Java deals with constant variables §4.12.4 by constant folding in compile time. I’ve tried my best, but I couldn’t find its description from JLS. Could anybody tell me where I could find official description of the constant folding process for Java 11? Answer The specification do…
Change PreferenceFragmentCompat dialog background color in Android
I recently started working with PreferenceFragmentCompat and MaterialComponents and noticed that in Dark mode, Dialogs generated by preferences like ListPreference always have that weird grey android background no matter how many background attributes I change in the style. (source: pocketnow.com) This I̵…
Unzip specific zip file from nested zip file using ANT
I have a zip file ex. ‘test.zip’ that contains 2 more zip files within it – A.zip and B.zip. I want to only extract contents of A.zip and leave B.zip untouched. I did try out the below code snippet, but found no luck yet – Please advise how this could be achieved. Answer From the unzip…
Making a Spring Boot Configuration Fault Tolerant [closed]
I have a Spring Boot Application that relies on various services like Keycloak, Elastic Stack, and PostgreSQL. This application will be deployed to an Kubernetes cluster along with a number of other …
Does VSCode have an option to “Create tests” for a java class?
In IntelliJ IDEA Ultimate, I have the ability to “Create tests” for a Java class. Does VS Code have anything similar? Any extension or in-built functionality. If not, what would be the steps I should follow to create such an option for my use? Answer It seems not. I have tried ‘Junit Testfil…
ISP or Windows firewall blocking UDP connection
I have made a online player game in which i use TCP connection between server and client, and UDP (DatagramSocket) between clients (its a real time game). My problem is that i can play with some friends but no with others, that is to say, my UDP connection works only with some PCs. I think the only possible r…
Spring Security – How to get the roles assigned to user
I am implementing JWT Role Based Authorization. I am testing my apis through postman. The users first makes a POST request and registers itself where we pass in the firstname, empid and password. The user on successfull registarion returns a response including a column roles which is null in the starting. The…
Parsing instagram with java jsoup not give Elements gives source
I’m trying to get reels video URL with jsoup using java on Android Studio. I want to get Elements in inspect but code returns page source. I use jsoup in other projects on different web pages and never encounter this situation. Can you tell me what ı doing wrong and how can ı get the Elements in inspect…
Java : How to copy folder with contents from resource and copy to temp directory?
Project structure: Using maven-assembly plugin, I am including the resources in the jar file. As PMD folder will be used by the applcaition, I would like to create a copy of the PMD folder in the temp directory, so that I can start reading the bat files and other files from that temp directory. ISSUE When the…