😢 오류 내용 java.lang.SecurityException: class "org.hamcrest.Matchers"'s signer information does not match signer information of other classes in the same package at java.lang.ClassLoader.checkCerts(Unknown Source) at java.lang.ClassLoader.preDefineClass(Unknown Source) at java.lang.ClassLoader.defineClassCond(Unknown Source) at java.lang.ClassLoader.defineClass(Unknown Source) at java.security.Secu..

구글 OAuth를 사용하던 도중 오류가 발생했다. APPLICATION FAILED TO START. 앱이 실행하는 것에 실패했다고 나온다. 오류 내용을 확인해보자. - 오류 내용 *************************** APPLICATION FAILED TO START *************************** Description: The dependencies of some of the beans in the application context form a cycle: ┌─────┐ | securityConfig (field private com.cos.security1.config.oauth.PrincipalOauth2UserService com.cos.security1.confi..

Resolved [org.springframework.dao.InvalidDataAccessApiUsageException: Modifying queries can only use void or int/Integer as return type! Offending method: public abstract com.example com.example.repository.myRepository.mySave(int,int,java.lang.String); nested exception is java.lang.IllegalArgumentException: Modifying queries can only use void or int/Integer as return type! Offending method: publ..

스프링 부트를 사용할 때 네이티브 쿼리를 통해 JPARepository를 다루는 경우가 있다. 그런데 아래와 같은 오류가 발생할 때가 있다. Resolved [org.springframework.dao.InvalidDataAccessApiUsageException: Executing an update/delete query; nested exception is javax.persistence.TransactionRequiredException: Executing an update/delete query] TransactionRequiredException이 발생한 것인데, update/delete 쿼리를 실행할 때 @Transactional을 붙여주지 않았기 때문에 발생한 에러이다. 문제의 코드 publ..

에러상황 *************************** APPLICATION FAILED TO START *************************** Description: Parameter 0 of constructor in com.bigbell.accountbook.rest.AccountRestController required a bean of type 'com.bigbell.accountbook.service.TodayAccountService' that could not be found. Action: Consider defining a bean of type 'com.bigbell.accountbook.service.TodayAccountService' in your configura..

Description: Parameter 0 of constructor in com.bigbell.springboot.cruddemo.service.EmployeeServiceImpl required a single bean, but 2 were found: - employeeDAOHibernateImpl: defined in file [D:\bigbell\Spring-Boot\22-jpa-crud- demo\target\classes\com\bigbell\springboot\cruddemo\dao\EmployeeDAOHibernateImpl.class] - employeeDAOJpaImpl: defined in file [D:\bigbell\Spring-Boot\22-jpa-crud- demo\targ..