Spring framework upgrade – Modifying the code
Issue Trying to upgrade a springframe work project from very old version to latest version 5.3. After replacing old jar…
Category: Spring
HikariPool-1 – Connection is not available, request timed out after 30000ms for very tiny load server
Issue I have a small Java application for testing purposes. I have moved to hikari recently. What I notice is…
Project reactor, Convert Flux into Map<String,List<Data>>
Issue I have a list of Data object public class Data{ private String id; private String sharedId; } How to…
get Json object into jsonArray
Issue This is the JSON array. I want to get the last object and then compare the date updatedAt, which…
Spring Batch : How to identify the java method and SQL queries that causes performance degradation?
Issue I have a spring batch application that runs for hours (~10hrs) in existing on-premise environment, we are in the…
Eureka client: com.netflix.discovery.shared.transport.TransportException: Cannot execute request on any known server
Issue I’m using Eureka Server microservice and Eureka client microservice. I initialized the Eureka Server first, and then initialized the…
Which free version of Java can I use for production environments and or commercial purposes?
Issue While I was in a dockerization project in my current job, I got this doubt: Which Java can I…
Current request is not a multipart request with Postman
Issue I have this class: @RestController @RequestMapping("/api/v1") @Slf4j public class FileController extends ResourceController { private final FileUtils fileUtils; public FileController(JwtTokenUtil…