This is something I see in Spring Boot code for example (in the catch block with webServer variable): Why not just doing this.webServer.stop()? What is the purpose of local variable webServer? Answer The main purpose of the assignment is to avoid producing a NullPointerException when the this.webServer is set…
Tag: spring
No qualifying bean of type ‘org.springframework.boot.actuate.metrics.MetricsEndpoint’
I upgraded spring.version from 5.0.18.RELEASE to 5.3.21 and spring.boot.version from 2.1.18.RELEASE to 2.7.0 spring-boot-starter-actuator ${spring.boot.version} In my Healthcheck class I use: After upgrade I’ve got: Why Spring doesn’t see org.springframework.boot.actuate.metrics.MetricsEndpoint ? …
spring boot app works on intellij but not with .jar file
I am new to Spring boot and java. I have a simple Spring boot app which has one function. When I run it on intellij it works well, and I am able to test it with postman many times without issue. But when I build an artifact and then .jar file, running that .jar file will close the program immediately.
How To Convert Spring Boot Entity to Angular Object
I’m trying to use Angular and Spring Boot to show a list of Rule objects. I am not using a JPA Repository to respond to the GET request, so I think I have to ‘manually’ convert my list of Rule objects on the Spring Boot side to a JSON so that httpClient.get<Rule[]>() can convert it to …
Why are Spring libraries including same parent packages made seperate?
I’ve just noticed two different libraries sharing paths. Example is as follows. There are two seperate packages – spring-boot-actuator, spring-boot-actuator-autoconfigure. Packages included in these libraries share the same parent package or package path. I can’t imagine the things under the…
NoSuchBeanDefinitionException with reactive mongo repository: required a bean of type that could not be found
I have an issue: repository bean couldn’t be found when it’s placed in outer package. It causes nested UnsatisfiedDependencyException which is due to NoSuchBeanDefinitionException (expected at least 1 bean which qualifies as autowire candidate). After I copied the class to my project, it works per…
Why handleResponse(URI url, HttpMethod method, ClientHttpResponse response) method of RestTemplate.class is getting called for a 200 Succeess response
I am calling an external API from my code using RestTemplate like below: This API call is returning 200 Success but when I debug it, it still goes to handleResponse(URI url, HttpMethod method, ClientHttpResponse response) method of RestTemplate.class And then it’s coming to my RestTemplateErrorHandler.j…
How make sequential API calls and merge the result in a mono
I try to make sequential API calls and merge the result in a mono . The first API contains a List of Id for the second API. My functional WebClient The ouvrageClient was invoked but I don’t see log Log The ouvrageClient was invoked but I don’t see log for the ouvrageClient …. and the global …
How starter-web prevent spring-boot exit?
When using spring-boot-starter-web, The spring-boot application won’t exit after startup. And with Jetbrain IDEA, There is an icon show spring-boot start up finished: But if I using : Or Can let spring-boot keep running but the IDEA icon will loading forever, So that must be different way compare with s…
Spring boot – org.postgresql.util.PSQLException: FATAL: password authentication failed for user “postgres” [closed]
Closed. This question is not reproducible or was caused by typos. It is not currently accepting answers. This question was caused by a typo or a problem that can no longer be reproduced. While similar questions may be on-topic here, this one was resolved in a way less likely to help future readers. Closed 8 m…