Liferay crashes on enable Tomcat JNDI with MariaDB

• Type: Bug
• Status: Closed
• Resolution: No Longer Reproducible
• Affects Version/s: 7.1.2 CE GA3
• Fix Version/s: 7.1.X
• Component/s: Core Infrastructure > Database Access
• Labels: None
• Branch Version/s:
  7.1.x
• Fix Priority: 5

Edit: The reason for this is new JDBC driver Updated in Tomcat

I have working Liferay Portal (Clean setup without installed portlets and so on) with portal-ext.properties file:

jdbc.default.driverClassName=org.mariadb.jdbc.Driver
jdbc.default.url=jdbc:mariadb://mariadb:3306/liferaydb?useUnicode=true&characterEncoding=UTF-8&useFastDateParsing=false
jdbc.default.username=liferay
jdbc.default.password=start123

Next I want to have JNDI datasource on Liferay's Tomcat servlet container Approach 2 here: https://community.liferay.com/es/blogs/-/blogs/database-connection-pool-sharing-between-portal-and-portlets

I have only change /tomcat/conf/context.xml and server.xml
After start Liferay server:

2019-02-14 16:59:30.702 ERROR [main][DialectDetector:147] org.hibernate.HibernateException: Unable to determine Dialect to use [name=MariaDB, majorVersion=10]; user must register resolver or explicitly set 'hibernate.dialect'
org.hibernate.HibernateException: Unable to determine Dialect to use [name=MariaDB, majorVersion=10]; user must register resolver or explicitly set 'hibernate.dialect'
	at org.hibernate.dialect.resolver.DialectFactory.determineDialect(DialectFactory.java:130)
	at org.hibernate.dialect.resolver.DialectFactory.buildDialect(DialectFactory.java:96)
	at com.liferay.portal.spring.hibernate.DialectDetector.getDialect(DialectDetector.java:129)
	at com.liferay.portal.dao.jdbc.DataSourceFactoryImpl.initDataSource(DataSourceFactoryImpl.java:205)
	at com.liferay.portal.kernel.dao.jdbc.DataSourceFactoryUtil.initDataSource(DataSourceFactoryUtil.java:39)
	at com.liferay.portal.dao.jdbc.spring.DataSourceFactoryBean.createInstance(DataSourceFactoryBean.java:44)
	at com.liferay.portal.dao.jdbc.spring.DataSourceFactoryBean.createInstance(DataSourceFactoryBean.java:30)
	at org.springframework.beans.factory.config.AbstractFactoryBean.afterPropertiesSet(AbstractFactoryBean.java:134)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1631)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1568)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:539)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:476)
	at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:303)
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:299)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:736)
	at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:762)
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:480)
	at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:139)
	at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:93)
	at com.liferay.portal.spring.context.ArrayApplicationContext.<init>(ArrayApplicationContext.java:33)
	at com.liferay.portal.spring.context.PortalContextLoaderListener.contextInitialized(PortalContextLoaderListener.java:251)
	at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4643)
	at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5109)
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
	at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:742)
	at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:718)
	at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:703)
	at org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:630)
	at org.apache.catalina.startup.HostConfig$DeployDescriptor.run(HostConfig.java:1840)
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75)
	at java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:112)
	at org.apache.catalina.startup.HostConfig.deployDescriptors(HostConfig.java:525)
	at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:424)
	at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1585)
	at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:308)
	at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:123)
	at org.apache.catalina.util.LifecycleBase.setStateInternal(LifecycleBase.java:424)
	at org.apache.catalina.util.LifecycleBase.setState(LifecycleBase.java:367)
	at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:966)
	at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:839)
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
	at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1427)
	at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1417)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75)
	at java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:134)
	at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:943)
	at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:258)
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
	at org.apache.catalina.core.StandardService.startInternal(StandardService.java:422)
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
	at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:770)
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)
	at org.apache.catalina.startup.Catalina.start(Catalina.java:682)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:350)
	at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:492)

Dialect cannot be set in portal-ext.properties like:
hibernate.dialect=org.hibernate.dialect.MySQL5Dialect