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HTTP Status 500 – Internal Server Error

Type Exception Report

Message Request processing failed; nested exception is org.springframework.transaction.CannotCreateTransactionException: Could not open JPA EntityManager for transaction; nested exception is org.hibernate.exception.JDBCConnectionException: Unable to acquire JDBC Connection

Description The server encountered an unexpected condition that prevented it from fulfilling the request.

Exception

org.springframework.web.util.NestedServletException: Request processing failed; nested exception is org.springframework.transaction.CannotCreateTransactionException: Could not open JPA EntityManager for transaction; nested exception is org.hibernate.exception.JDBCConnectionException: Unable to acquire JDBC Connection org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1014) org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:898) javax.servlet.http.HttpServlet.service(HttpServlet.java:529) org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883) javax.servlet.http.HttpServlet.service(HttpServlet.java:623) org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51) org.springframework.boot.web.servlet.support.ErrorPageFilter.forwardToErrorPage(ErrorPageFilter.java:190) org.springframework.boot.web.servlet.support.ErrorPageFilter.handleException(ErrorPageFilter.java:175) org.springframework.boot.web.servlet.support.ErrorPageFilter.doFilter(ErrorPageFilter.java:142) org.springframework.boot.web.servlet.support.ErrorPageFilter.access$000(ErrorPageFilter.java:66) org.springframework.boot.web.servlet.support.ErrorPageFilter$1.doFilterInternal(ErrorPageFilter.java:103) org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) org.springframework.boot.web.servlet.support.ErrorPageFilter.doFilter(ErrorPageFilter.java:121) org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201) org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)

Root Cause

org.springframework.transaction.CannotCreateTransactionException: Could not open JPA EntityManager for transaction; nested exception is org.hibernate.exception.JDBCConnectionException: Unable to acquire JDBC Connection org.springframework.orm.jpa.JpaTransactionManager.doBegin(JpaTransactionManager.java:447) org.springframework.transaction.support.AbstractPlatformTransactionManager.getTransaction(AbstractPlatformTransactionManager.java:376) org.springframework.transaction.interceptor.TransactionAspectSupport.createTransactionIfNecessary(TransactionAspectSupport.java:560) org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:347) org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:99) org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:747) org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:689) vn.viettuts.webapp.dao.DynamicMenuDAO$$EnhancerBySpringCGLIB$$21e365a3.getDynamicMenuByPermalink(<generated>) vn.viettuts.webapp.service.DynamicMenuServiceImpl.getDynamicMenuByPermalink(DynamicMenuServiceImpl.java:16) vn.viettuts.webapp.utils.VtWebUtils.showPost(VtWebUtils.java:515) vn.viettuts.webapp.controller.MyErrorController.handleError(MyErrorController.java:29) jdk.internal.reflect.GeneratedMethodAccessor112.invoke(Unknown Source) java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) java.base/java.lang.reflect.Method.invoke(Method.java:566) org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:190) org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:138) org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:106) org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:888) org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:793) org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87) org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1040) org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:943) org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006) org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:898) javax.servlet.http.HttpServlet.service(HttpServlet.java:529) org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883) javax.servlet.http.HttpServlet.service(HttpServlet.java:623) org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51) org.springframework.boot.web.servlet.support.ErrorPageFilter.forwardToErrorPage(ErrorPageFilter.java:190) org.springframework.boot.web.servlet.support.ErrorPageFilter.handleException(ErrorPageFilter.java:175) org.springframework.boot.web.servlet.support.ErrorPageFilter.doFilter(ErrorPageFilter.java:142) org.springframework.boot.web.servlet.support.ErrorPageFilter.access$000(ErrorPageFilter.java:66) org.springframework.boot.web.servlet.support.ErrorPageFilter$1.doFilterInternal(ErrorPageFilter.java:103) org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) org.springframework.boot.web.servlet.support.ErrorPageFilter.doFilter(ErrorPageFilter.java:121) org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201) org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)

Root Cause

org.hibernate.exception.JDBCConnectionException: Unable to acquire JDBC Connection org.hibernate.exception.internal.SQLStateConversionDelegate.convert(SQLStateConversionDelegate.java:112) org.hibernate.exception.internal.StandardSQLExceptionConverter.convert(StandardSQLExceptionConverter.java:42) org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:113) org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:99) org.hibernate.resource.jdbc.internal.LogicalConnectionManagedImpl.acquireConnectionIfNeeded(LogicalConnectionManagedImpl.java:107) org.hibernate.resource.jdbc.internal.LogicalConnectionManagedImpl.getPhysicalConnection(LogicalConnectionManagedImpl.java:134) org.hibernate.resource.jdbc.internal.LogicalConnectionManagedImpl.getConnectionForTransactionManagement(LogicalConnectionManagedImpl.java:250) org.hibernate.resource.jdbc.internal.LogicalConnectionManagedImpl.begin(LogicalConnectionManagedImpl.java:258) org.hibernate.resource.transaction.backend.jdbc.internal.JdbcResourceLocalTransactionCoordinatorImpl$TransactionDriverControlImpl.begin(JdbcResourceLocalTransactionCoordinatorImpl.java:246) org.hibernate.engine.transaction.internal.TransactionImpl.begin(TransactionImpl.java:83) org.springframework.orm.jpa.vendor.HibernateJpaDialect.beginTransaction(HibernateJpaDialect.java:184) org.springframework.orm.jpa.JpaTransactionManager.doBegin(JpaTransactionManager.java:402) org.springframework.transaction.support.AbstractPlatformTransactionManager.getTransaction(AbstractPlatformTransactionManager.java:376) org.springframework.transaction.interceptor.TransactionAspectSupport.createTransactionIfNecessary(TransactionAspectSupport.java:560) org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:347) org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:99) org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:747) org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:689) vn.viettuts.webapp.dao.DynamicMenuDAO$$EnhancerBySpringCGLIB$$21e365a3.getDynamicMenuByPermalink(<generated>) vn.viettuts.webapp.service.DynamicMenuServiceImpl.getDynamicMenuByPermalink(DynamicMenuServiceImpl.java:16) vn.viettuts.webapp.utils.VtWebUtils.showPost(VtWebUtils.java:515) vn.viettuts.webapp.controller.MyErrorController.handleError(MyErrorController.java:29) jdk.internal.reflect.GeneratedMethodAccessor112.invoke(Unknown Source) java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) java.base/java.lang.reflect.Method.invoke(Method.java:566) org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:190) org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:138) org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:106) org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:888) org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:793) org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87) org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1040) org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:943) org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006) org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:898) javax.servlet.http.HttpServlet.service(HttpServlet.java:529) org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883) javax.servlet.http.HttpServlet.service(HttpServlet.java:623) org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51) org.springframework.boot.web.servlet.support.ErrorPageFilter.forwardToErrorPage(ErrorPageFilter.java:190) org.springframework.boot.web.servlet.support.ErrorPageFilter.handleException(ErrorPageFilter.java:175) org.springframework.boot.web.servlet.support.ErrorPageFilter.doFilter(ErrorPageFilter.java:142) org.springframework.boot.web.servlet.support.ErrorPageFilter.access$000(ErrorPageFilter.java:66) org.springframework.boot.web.servlet.support.ErrorPageFilter$1.doFilterInternal(ErrorPageFilter.java:103) org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) org.springframework.boot.web.servlet.support.ErrorPageFilter.doFilter(ErrorPageFilter.java:121) org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201) org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)

Root Cause

com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server. com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174) com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64) com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:836) com.mysql.cj.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:456) com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246) com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:199) com.zaxxer.hikari.util.DriverDataSource.getConnection(DriverDataSource.java:138) com.zaxxer.hikari.pool.PoolBase.newConnection(PoolBase.java:353) com.zaxxer.hikari.pool.PoolBase.newPoolEntry(PoolBase.java:201) com.zaxxer.hikari.pool.HikariPool.createPoolEntry(HikariPool.java:473) com.zaxxer.hikari.pool.HikariPool.checkFailFast(HikariPool.java:562) com.zaxxer.hikari.pool.HikariPool.<init>(HikariPool.java:115) com.zaxxer.hikari.HikariDataSource.getConnection(HikariDataSource.java:112) org.hibernate.engine.jdbc.connections.internal.DatasourceConnectionProviderImpl.getConnection(DatasourceConnectionProviderImpl.java:122) org.hibernate.internal.NonContextualJdbcConnectionAccess.obtainConnection(NonContextualJdbcConnectionAccess.java:38) org.hibernate.resource.jdbc.internal.LogicalConnectionManagedImpl.acquireConnectionIfNeeded(LogicalConnectionManagedImpl.java:104) org.hibernate.resource.jdbc.internal.LogicalConnectionManagedImpl.getPhysicalConnection(LogicalConnectionManagedImpl.java:134) org.hibernate.resource.jdbc.internal.LogicalConnectionManagedImpl.getConnectionForTransactionManagement(LogicalConnectionManagedImpl.java:250) org.hibernate.resource.jdbc.internal.LogicalConnectionManagedImpl.begin(LogicalConnectionManagedImpl.java:258) org.hibernate.resource.transaction.backend.jdbc.internal.JdbcResourceLocalTransactionCoordinatorImpl$TransactionDriverControlImpl.begin(JdbcResourceLocalTransactionCoordinatorImpl.java:246) org.hibernate.engine.transaction.internal.TransactionImpl.begin(TransactionImpl.java:83) org.springframework.orm.jpa.vendor.HibernateJpaDialect.beginTransaction(HibernateJpaDialect.java:184) org.springframework.orm.jpa.JpaTransactionManager.doBegin(JpaTransactionManager.java:402) org.springframework.transaction.support.AbstractPlatformTransactionManager.getTransaction(AbstractPlatformTransactionManager.java:376) org.springframework.transaction.interceptor.TransactionAspectSupport.createTransactionIfNecessary(TransactionAspectSupport.java:560) org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:347) org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:99) org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:747) org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:689) vn.viettuts.webapp.dao.DynamicMenuDAO$$EnhancerBySpringCGLIB$$21e365a3.getDynamicMenuByPermalink(<generated>) vn.viettuts.webapp.service.DynamicMenuServiceImpl.getDynamicMenuByPermalink(DynamicMenuServiceImpl.java:16) vn.viettuts.webapp.utils.VtWebUtils.showPost(VtWebUtils.java:515) vn.viettuts.webapp.controller.MyErrorController.handleError(MyErrorController.java:29) jdk.internal.reflect.GeneratedMethodAccessor112.invoke(Unknown Source) java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) java.base/java.lang.reflect.Method.invoke(Method.java:566) org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:190) org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:138) org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:106) org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:888) org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:793) org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87) org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1040) org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:943) org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006) org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:898) javax.servlet.http.HttpServlet.service(HttpServlet.java:529) org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883) javax.servlet.http.HttpServlet.service(HttpServlet.java:623) org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51) org.springframework.boot.web.servlet.support.ErrorPageFilter.forwardToErrorPage(ErrorPageFilter.java:190) org.springframework.boot.web.servlet.support.ErrorPageFilter.handleException(ErrorPageFilter.java:175) org.springframework.boot.web.servlet.support.ErrorPageFilter.doFilter(ErrorPageFilter.java:142) org.springframework.boot.web.servlet.support.ErrorPageFilter.access$000(ErrorPageFilter.java:66) org.springframework.boot.web.servlet.support.ErrorPageFilter$1.doFilterInternal(ErrorPageFilter.java:103) org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) org.springframework.boot.web.servlet.support.ErrorPageFilter.doFilter(ErrorPageFilter.java:121) org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201) org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)

Root Cause

com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server. jdk.internal.reflect.GeneratedConstructorAccessor56.newInstance(Unknown Source) java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:490) com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61) com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105) com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151) com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167) com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:91) com.mysql.cj.NativeSession.connect(NativeSession.java:144) com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956) com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826) com.mysql.cj.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:456) com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246) com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:199) com.zaxxer.hikari.util.DriverDataSource.getConnection(DriverDataSource.java:138) com.zaxxer.hikari.pool.PoolBase.newConnection(PoolBase.java:353) com.zaxxer.hikari.pool.PoolBase.newPoolEntry(PoolBase.java:201) com.zaxxer.hikari.pool.HikariPool.createPoolEntry(HikariPool.java:473) com.zaxxer.hikari.pool.HikariPool.checkFailFast(HikariPool.java:562) com.zaxxer.hikari.pool.HikariPool.<init>(HikariPool.java:115) com.zaxxer.hikari.HikariDataSource.getConnection(HikariDataSource.java:112) org.hibernate.engine.jdbc.connections.internal.DatasourceConnectionProviderImpl.getConnection(DatasourceConnectionProviderImpl.java:122) org.hibernate.internal.NonContextualJdbcConnectionAccess.obtainConnection(NonContextualJdbcConnectionAccess.java:38) org.hibernate.resource.jdbc.internal.LogicalConnectionManagedImpl.acquireConnectionIfNeeded(LogicalConnectionManagedImpl.java:104) org.hibernate.resource.jdbc.internal.LogicalConnectionManagedImpl.getPhysicalConnection(LogicalConnectionManagedImpl.java:134) org.hibernate.resource.jdbc.internal.LogicalConnectionManagedImpl.getConnectionForTransactionManagement(LogicalConnectionManagedImpl.java:250) org.hibernate.resource.jdbc.internal.LogicalConnectionManagedImpl.begin(LogicalConnectionManagedImpl.java:258) org.hibernate.resource.transaction.backend.jdbc.internal.JdbcResourceLocalTransactionCoordinatorImpl$TransactionDriverControlImpl.begin(JdbcResourceLocalTransactionCoordinatorImpl.java:246) org.hibernate.engine.transaction.internal.TransactionImpl.begin(TransactionImpl.java:83) org.springframework.orm.jpa.vendor.HibernateJpaDialect.beginTransaction(HibernateJpaDialect.java:184) org.springframework.orm.jpa.JpaTransactionManager.doBegin(JpaTransactionManager.java:402) org.springframework.transaction.support.AbstractPlatformTransactionManager.getTransaction(AbstractPlatformTransactionManager.java:376) org.springframework.transaction.interceptor.TransactionAspectSupport.createTransactionIfNecessary(TransactionAspectSupport.java:560) org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:347) org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:99) org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:747) org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:689) vn.viettuts.webapp.dao.DynamicMenuDAO$$EnhancerBySpringCGLIB$$21e365a3.getDynamicMenuByPermalink(<generated>) vn.viettuts.webapp.service.DynamicMenuServiceImpl.getDynamicMenuByPermalink(DynamicMenuServiceImpl.java:16) vn.viettuts.webapp.utils.VtWebUtils.showPost(VtWebUtils.java:515) vn.viettuts.webapp.controller.MyErrorController.handleError(MyErrorController.java:29) jdk.internal.reflect.GeneratedMethodAccessor112.invoke(Unknown Source) java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) java.base/java.lang.reflect.Method.invoke(Method.java:566) org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:190) org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:138) org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:106) org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:888) org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:793) org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87) org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1040) org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:943) org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006) org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:898) javax.servlet.http.HttpServlet.service(HttpServlet.java:529) org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883) javax.servlet.http.HttpServlet.service(HttpServlet.java:623) org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51) org.springframework.boot.web.servlet.support.ErrorPageFilter.forwardToErrorPage(ErrorPageFilter.java:190) org.springframework.boot.web.servlet.support.ErrorPageFilter.handleException(ErrorPageFilter.java:175) org.springframework.boot.web.servlet.support.ErrorPageFilter.doFilter(ErrorPageFilter.java:142) org.springframework.boot.web.servlet.support.ErrorPageFilter.access$000(ErrorPageFilter.java:66) org.springframework.boot.web.servlet.support.ErrorPageFilter$1.doFilterInternal(ErrorPageFilter.java:103) org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) org.springframework.boot.web.servlet.support.ErrorPageFilter.doFilter(ErrorPageFilter.java:121) org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201) org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)

Root Cause

java.net.ConnectException: Connection refused (Connection refused) java.base/java.net.PlainSocketImpl.socketConnect(Native Method) java.base/java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:412) java.base/java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:255) java.base/java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:237) java.base/java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) java.base/java.net.Socket.connect(Socket.java:609) com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:155) com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:65) com.mysql.cj.NativeSession.connect(NativeSession.java:144) com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:956) com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:826) com.mysql.cj.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:456) com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246) com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:199) com.zaxxer.hikari.util.DriverDataSource.getConnection(DriverDataSource.java:138) com.zaxxer.hikari.pool.PoolBase.newConnection(PoolBase.java:353) com.zaxxer.hikari.pool.PoolBase.newPoolEntry(PoolBase.java:201) com.zaxxer.hikari.pool.HikariPool.createPoolEntry(HikariPool.java:473) com.zaxxer.hikari.pool.HikariPool.checkFailFast(HikariPool.java:562) com.zaxxer.hikari.pool.HikariPool.<init>(HikariPool.java:115) com.zaxxer.hikari.HikariDataSource.getConnection(HikariDataSource.java:112) org.hibernate.engine.jdbc.connections.internal.DatasourceConnectionProviderImpl.getConnection(DatasourceConnectionProviderImpl.java:122) org.hibernate.internal.NonContextualJdbcConnectionAccess.obtainConnection(NonContextualJdbcConnectionAccess.java:38) org.hibernate.resource.jdbc.internal.LogicalConnectionManagedImpl.acquireConnectionIfNeeded(LogicalConnectionManagedImpl.java:104) org.hibernate.resource.jdbc.internal.LogicalConnectionManagedImpl.getPhysicalConnection(LogicalConnectionManagedImpl.java:134) org.hibernate.resource.jdbc.internal.LogicalConnectionManagedImpl.getConnectionForTransactionManagement(LogicalConnectionManagedImpl.java:250) org.hibernate.resource.jdbc.internal.LogicalConnectionManagedImpl.begin(LogicalConnectionManagedImpl.java:258) org.hibernate.resource.transaction.backend.jdbc.internal.JdbcResourceLocalTransactionCoordinatorImpl$TransactionDriverControlImpl.begin(JdbcResourceLocalTransactionCoordinatorImpl.java:246) org.hibernate.engine.transaction.internal.TransactionImpl.begin(TransactionImpl.java:83) org.springframework.orm.jpa.vendor.HibernateJpaDialect.beginTransaction(HibernateJpaDialect.java:184) org.springframework.orm.jpa.JpaTransactionManager.doBegin(JpaTransactionManager.java:402) org.springframework.transaction.support.AbstractPlatformTransactionManager.getTransaction(AbstractPlatformTransactionManager.java:376) org.springframework.transaction.interceptor.TransactionAspectSupport.createTransactionIfNecessary(TransactionAspectSupport.java:560) org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:347) org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:99) org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:747) org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:689) vn.viettuts.webapp.dao.DynamicMenuDAO$$EnhancerBySpringCGLIB$$21e365a3.getDynamicMenuByPermalink(<generated>) vn.viettuts.webapp.service.DynamicMenuServiceImpl.getDynamicMenuByPermalink(DynamicMenuServiceImpl.java:16) vn.viettuts.webapp.utils.VtWebUtils.showPost(VtWebUtils.java:515) vn.viettuts.webapp.controller.MyErrorController.handleError(MyErrorController.java:29) jdk.internal.reflect.GeneratedMethodAccessor112.invoke(Unknown Source) java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) java.base/java.lang.reflect.Method.invoke(Method.java:566) org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:190) org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:138) org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:106) org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:888) org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:793) org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87) org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1040) org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:943) org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006) org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:898) javax.servlet.http.HttpServlet.service(HttpServlet.java:529) org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883) javax.servlet.http.HttpServlet.service(HttpServlet.java:623) org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51) org.springframework.boot.web.servlet.support.ErrorPageFilter.forwardToErrorPage(ErrorPageFilter.java:190) org.springframework.boot.web.servlet.support.ErrorPageFilter.handleException(ErrorPageFilter.java:175) org.springframework.boot.web.servlet.support.ErrorPageFilter.doFilter(ErrorPageFilter.java:142) org.springframework.boot.web.servlet.support.ErrorPageFilter.access$000(ErrorPageFilter.java:66) org.springframework.boot.web.servlet.support.ErrorPageFilter$1.doFilterInternal(ErrorPageFilter.java:103) org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) org.springframework.boot.web.servlet.support.ErrorPageFilter.doFilter(ErrorPageFilter.java:121) org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201) org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119)

Note The full stack trace of the root cause is available in the server logs.

Apache Tomcat/9.0.75