How to solve Spring Cloud LoadBalancer is currently working with the default cache. You can switch to using Caffeine cache, by adding it to the classpath. warning in spring boot? Answer Add the below library in your pom.xml or in your build.gradle You can replace the suitable/latest version of caffeine.
Tag: spring-boot
Join tables in spring data jpa
I have an issue in joining two tables column. I have two entities Status Report and Employee. and I want the data of employee inside StatusReport. Another class is the employee: As you can see employee entity itself have some other joins on other tables. Which is a deparment table. When I join Status Report w…
How can I make my spring boot application to log in to keycloak with given username and password?
I have a spring-boot application and I am using keycloak to authenticate users. I am planning to make an endpoint in my application that waits a username and a password, it logs-in to keycloak and if the username/password is valid ask for an access token and give it back to the user. How can I make this log-i…
Gradle Login and signup page giving error in getUserAuthority() in CustomerUserDetailsService.java
The method getUserAuthority(java.util.Set<com.djamware.springsecuritymongodb.domain.Role>) in the type CustomUserDetailsService is not applicable for the arguments (java.util.Set<javax.management.relation.Role>) Why giving this error? This Java file is under package com.djamware.springsecuritymong…
Spring Boot Jpa specification Set Enums IN Set Enums
Hi I want filter restaurant by type using Specification, but I get error: Parameter value [SUSHI] did not match expected type [java.util.Set (n/a)] How Can I comare List enums to list enums ? :/ My specification file: Restaurant model: Restaurant category: Answer Had the same problem and this question helped …
using spring boot data redis template get a null pointer error
config: use: and this always get a error, warn stack trace is: I just want to use spring boot date redis to do some CRUD operations like template<String, Object>. please help me Answer Field injection can’t happen until after the constructor is already finished. Make the template a constructor par…
Field authenticationManager in service.SecurityServiceImpl required a bean of type ‘org.springframework.security.authentication.AuthenticationManager’
I am new to Spring Boot and trying to implement whatever I’ve learned from this link: login-registration-feature. My aim is to build a user login and registration feature but i’m stuck with this error: My folder structure, code is same as the one mentioned in the link. But couldn’t figure ou…
spring boot Tomcat
I have created one simple spring boot application and have added 2 dependencies using spring initializers, H2 and JPA. I have added H2 configuration in application.properties file and then added hoteldata.sql file in resource folder. When i am running the project, spring boot log doesn’t show Tomcat is …
Singleton writes a field in unsynchronized manner
I am getting : Singleton class writes to a field in an unsynchronized manner at 4-5 places in Springboot code while scanning through SonarQube. Now, I am trying to understand how can I make this warning go away? Is there a general fix for this error One example is below : Answer never ever expose a mutable fi…
Avro GenericRecord deserialization not working via SpringKafka
I’m trying to simplify my consumer as much as possible. The problem is, when looking at the records coming in my Kafka listener: List<GenericRecord> incomingRecords the values are just string values. I’ve tried turning specific reader to true and false. I’ve set the value deserializer …