so which is better approach in Java 17 springboot 3 for checking Null condition

I have an async Listener that reads data from a database, parses a file and calls an external service.

if (filterParamModel == null || pageSize == 1) { pageModel.setTotalRecords(-1); } else { CriteriaQuery<Long> countQuery = cb.createQuery(Long.class); Root<AlertTbl> countRoot = countQuery.from(AlertTbl.class); countQuery.select(cb.count(countRoot)); countQuery.where(cb.and(predicateArr)); Long count = entityManager.createQuery(countQuery).getSingleResult(); pageModel.setTotalRecords(count.intValue()); } return pageModel; Someone told me to use StringBuilder but there are a lot of methods like this so I can’t do that. I just migrated to […]

if (filterParamModel == null || pageSize == 1) { pageModel.setTotalRecords(-1); } else { CriteriaQuery<Long> countQuery = cb.createQuery(Long.class); Root<AlertTbl> countRoot = countQuery.from(AlertTbl.class); countQuery.select(cb.count(countRoot)); countQuery.where(cb.and(predicateArr)); Long count = entityManager.createQuery(countQuery).getSingleResult(); pageModel.setTotalRecords(count.intValue()); } return pageModel; Someone told me to use StringBuilder but there are a lot of methods like this so I can’t do that. I just migrated to […]

I’m developing an API for college courses and I want the requests to be able to handle multiple query parameters that refine the search in different ways. Example with 2 parameters:

In my core controller method, I’m sending a ResponseEntity with status 500

I have controller class Login.Java:

This question already has answers here: Logging HttpRequest parameters and request body (4 answers) Closed 3 hours ago. I’m trying to get request body of request and sending to database Here is my lines of code : @Component public class CustomInterceptor implements HandlerInterceptor { private static final Logger log = LoggerFactory.getLogger(CustomInterceptor.class); private final LogStore logStore; […]

I have following controller. Which takes a post request and process as required.

Caused by: java.lang.InternalError: invalid logger merge at java.logging/java.util.logging.Logger.mergeWithSystemLogger(Unknown Source) at java.logging/java.util.logging.LogManager$3.run(Unknown Source) at java.logging/java.util.logging.LogManager$3.run(Unknown Source) at java.base/java.security.AccessController.doPrivileged(Unknown Source) at java.logging/java.util.logging.LogManager.demandSystemLogger(Unknown Source) at java.logging/java.util.logging.LogManager$LoggingProviderAccess.demandLoggerFor(Unknown Source) at java.logging/sun.util.logging.internal.LoggingProviderImpl.demandJULLoggerFor(Unknown Source) at java.logging/sun.util.logging.internal.LoggingProviderImpl.demandLoggerFor(Unknown Source) at java.base/jdk.internal.logger.DefaultLoggerFinder.getLogger(Unknown Source) at java.base/jdk.internal.logger.LazyLoggers.getLoggerFromFinder(Unknown Source) at java.base/jdk.internal.logger.LazyLoggers.getLazyLogger(Unknown Source) at java.base/sun.util.logging.PlatformLogger.getLogger(Unknown Source) at java.base/java.net.CookieManager.put(Unknown Source) at cn.hutool.http.cookie.GlobalCookieManager.store(GlobalCookieManager.java:93) at cn.hutool.http.HttpResponse.init(HttpResponse.java:546) at cn.hutool.http.HttpResponse.initWithDisconnect(HttpResponse.java:504) at cn.hutool.http.HttpResponse.<init>(HttpResponse.java:82) at cn.hutool.http.HttpRequest.doExecute(HttpRequest.java:1195) at cn.hutool.http.HttpRequest.execute(HttpRequest.java:1051) at cn.hutool.http.HttpRequest.executeAsync(HttpRequest.java:1041) at cn.hutool.http.HttpDownloader.requestDownload(HttpDownloader.java:114) at cn.hutool.http.HttpDownloader.downloadFile(HttpDownloader.java:53) at cn.hutool.http.HttpUtil.downloadFile(HttpUtil.java:326) at cn.hutool.http.HttpUtil.downloadFile(HttpUtil.java:312) at cn.hutool.http.HttpUtil.downloadFile(HttpUtil.java:287)