解决方法：

在数据库连接url配置后边加&serverTimezone=GMT%2B8

例：

jdbc:mysql://127.0.0.1:3306/test改为jdbc:mysql://127.0.0.1:3306/test&serverTimezone=GMT%2B8

java.sql.SQLException: The server time zone value 'Öйú±ê׼ʱ¼ä' is unrecognized or represents more than one time zone. You must configure either the server or JDBC driver (via the serverTimezone configuration property) to use a more specifc time zone value if you want to utilize time zone support.

	at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:129) ~[mysql-connector-java-8.0.13.jar:8.0.13]

	at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:97) ~[mysql-connector-java-8.0.13.jar:8.0.13]

	at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:89) ~[mysql-connector-java-8.0.13.jar:8.0.13]

	at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:63) ~[mysql-connector-java-8.0.13.jar:8.0.13]

	at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:73) ~[mysql-connector-java-8.0.13.jar:8.0.13]

	at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:76) ~[mysql-connector-java-8.0.13.jar:8.0.13]

	at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:835) ~[mysql-connector-java-8.0.13.jar:8.0.13]

	at com.mysql.cj.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:455) ~[mysql-connector-java-8.0.13.jar:8.0.13]

	at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:240) ~[mysql-connector-java-8.0.13.jar:8.0.13]

	at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:207) ~[mysql-connector-java-8.0.13.jar:8.0.13]

	at com.zaxxer.hikari.util.DriverDataSource.getConnection(DriverDataSource.java:136) ~[HikariCP-3.2.0.jar:na]

	at com.zaxxer.hikari.pool.PoolBase.newConnection(PoolBase.java:369) ~[HikariCP-3.2.0.jar:na]

	at com.zaxxer.hikari.pool.PoolBase.newPoolEntry(PoolBase.java:198) ~[HikariCP-3.2.0.jar:na]

	at com.zaxxer.hikari.pool.HikariPool.createPoolEntry(HikariPool.java:467) [HikariCP-3.2.0.jar:na]

	at com.zaxxer.hikari.pool.HikariPool.checkFailFast(HikariPool.java:541) [HikariCP-3.2.0.jar:na]

	at com.zaxxer.hikari.pool.HikariPool.<init>(HikariPool.java:115) [HikariCP-3.2.0.jar:na]

	at com.zaxxer.hikari.HikariDataSource.getConnection(HikariDataSource.java:112) [HikariCP-3.2.0.jar:na]

	at org.springframework.jdbc.datasource.DataSourceUtils.fetchConnection(DataSourceUtils.java:151) [spring-jdbc-5.1.3.RELEASE.jar:5.1.3.RELEASE]

	at org.springframework.jdbc.datasource.DataSourceUtils.doGetConnection(DataSourceUtils.java:115) [spring-jdbc-5.1.3.RELEASE.jar:5.1.3.RELEASE]

	at org.springframework.jdbc.datasource.DataSourceUtils.getConnection(DataSourceUtils.java:78) [spring-jdbc-5.1.3.RELEASE.jar:5.1.3.RELEASE]

	at org.mybatis.spring.transaction.SpringManagedTransaction.openConnection(SpringManagedTransaction.java:82) [mybatis-spring-1.3.2.jar:1.3.2]

	at org.mybatis.spring.transaction.SpringManagedTransaction.getConnection(SpringManagedTransaction.java:68) [mybatis-spring-1.3.2.jar:1.3.2]

	at org.apache.ibatis.executor.BaseExecutor.getConnection(BaseExecutor.java:338) [mybatis-3.4.6.jar:3.4.6]

	at org.apache.ibatis.executor.SimpleExecutor.prepareStatement(SimpleExecutor.java:84) [mybatis-3.4.6.jar:3.4.6]

	at org.apache.ibatis.executor.SimpleExecutor.doUpdate(SimpleExecutor.java:49) [mybatis-3.4.6.jar:3.4.6]

	at org.apache.ibatis.executor.BaseExecutor.update(BaseExecutor.java:117) [mybatis-3.4.6.jar:3.4.6]

	at org.apache.ibatis.executor.CachingExecutor.update(CachingExecutor.java:76) [mybatis-3.4.6.jar:3.4.6]

	at org.apache.ibatis.session.defaults.DefaultSqlSession.update(DefaultSqlSession.java:198) [mybatis-3.4.6.jar:3.4.6]

	at org.apache.ibatis.session.defaults.DefaultSqlSession.insert(DefaultSqlSession.java:185) [mybatis-3.4.6.jar:3.4.6]

	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_152]

	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_152]

	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_152]

	at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_152]

	at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:433) [mybatis-spring-1.3.2.jar:1.3.2]

	at com.sun.proxy.$Proxy54.insert(Unknown Source) [na:na]

	at org.mybatis.spring.SqlSessionTemplate.insert(SqlSessionTemplate.java:278) [mybatis-spring-1.3.2.jar:1.3.2]

	at org.apache.ibatis.binding.MapperMethod.execute(MapperMethod.java:58) [mybatis-3.4.6.jar:3.4.6]

	at org.apache.ibatis.binding.MapperProxy.invoke(MapperProxy.java:59) [mybatis-3.4.6.jar:3.4.6]

	at com.sun.proxy.$Proxy55.save(Unknown Source) [na:na]

	at com.tuyrk._161_java_socket.project6.service.impl.FileServiceImpl.saveFile(FileServiceImpl.java:23) [classes/:na]

	at com.tuyrk._161_java_socket.project6.service.impl.FileServiceImplTest.saveFile(FileServiceImplTest.java:18) [test-classes/:na]

	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_152]

	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_152]

	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_152]

	at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_152]

	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50) [junit-4.12.jar:4.12]

	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12) [junit-4.12.jar:4.12]

	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47) [junit-4.12.jar:4.12]

	at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17) [junit-4.12.jar:4.12]

	at org.springframework.test.context.junit4.statements.RunBeforeTestExecutionCallbacks.evaluate(RunBeforeTestExecutionCallbacks.java:74) [spring-test-5.1.3.RELEASE.jar:5.1.3.RELEASE]

	at org.springframework.test.context.junit4.statements.RunAfterTestExecutionCallbacks.evaluate(RunAfterTestExecutionCallbacks.java:84) [spring-test-5.1.3.RELEASE.jar:5.1.3.RELEASE]

	at org.springframework.test.context.junit4.statements.RunBeforeTestMethodCallbacks.evaluate(RunBeforeTestMethodCallbacks.java:75) [spring-test-5.1.3.RELEASE.jar:5.1.3.RELEASE]

	at org.springframework.test.context.junit4.statements.RunAfterTestMethodCallbacks.evaluate(RunAfterTestMethodCallbacks.java:86) [spring-test-5.1.3.RELEASE.jar:5.1.3.RELEASE]

	at org.springframework.test.context.junit4.statements.SpringRepeat.evaluate(SpringRepeat.java:84) [spring-test-5.1.3.RELEASE.jar:5.1.3.RELEASE]

	at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325) [junit-4.12.jar:4.12]

	at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:251) [spring-test-5.1.3.RELEASE.jar:5.1.3.RELEASE]

	at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:97) [spring-test-5.1.3.RELEASE.jar:5.1.3.RELEASE]

	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290) [junit-4.12.jar:4.12]

	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71) [junit-4.12.jar:4.12]

	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288) [junit-4.12.jar:4.12]

	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58) [junit-4.12.jar:4.12]

	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268) [junit-4.12.jar:4.12]

	at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61) [spring-test-5.1.3.RELEASE.jar:5.1.3.RELEASE]

	at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:70) [spring-test-5.1.3.RELEASE.jar:5.1.3.RELEASE]

	at org.junit.runners.ParentRunner.run(ParentRunner.java:363) [junit-4.12.jar:4.12]

	at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:190) [spring-test-5.1.3.RELEASE.jar:5.1.3.RELEASE]

	at org.junit.runner.JUnitCore.run(JUnitCore.java:137) [junit-4.12.jar:4.12]

	at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68) [junit-rt.jar:na]

	at com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:47) [junit-rt.jar:na]

	at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:242) [junit-rt.jar:na]

	at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70) [junit-rt.jar:na]

Caused by: com.mysql.cj.exceptions.InvalidConnectionAttributeException: The server time zone value 'Öйú±ê׼ʱ¼ä' is unrecognized or represents more than one time zone. You must configure either the server or JDBC driver (via the serverTimezone configuration property) to use a more specifc time zone value if you want to utilize time zone support.

	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[na:1.8.0_152]

	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) ~[na:1.8.0_152]

	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) ~[na:1.8.0_152]

	at java.lang.reflect.Constructor.newInstance(Constructor.java:423) ~[na:1.8.0_152]

	at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61) ~[mysql-connector-java-8.0.13.jar:8.0.13]

	at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:85) ~[mysql-connector-java-8.0.13.jar:8.0.13]

	at com.mysql.cj.util.TimeUtil.getCanonicalTimezone(TimeUtil.java:132) ~[mysql-connector-java-8.0.13.jar:8.0.13]

	at com.mysql.cj.protocol.a.NativeProtocol.configureTimezone(NativeProtocol.java:2234) ~[mysql-connector-java-8.0.13.jar:8.0.13]

	at com.mysql.cj.protocol.a.NativeProtocol.initServerSession(NativeProtocol.java:2258) ~[mysql-connector-java-8.0.13.jar:8.0.13]

	at com.mysql.cj.jdbc.ConnectionImpl.initializePropsFromServer(ConnectionImpl.java:1319) ~[mysql-connector-java-8.0.13.jar:8.0.13]

	at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:966) ~[mysql-connector-java-8.0.13.jar:8.0.13]

	at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:825) ~[mysql-connector-java-8.0.13.jar:8.0.13]

	... 64 common frames omitted

org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.exceptions.PersistenceException:

### Error updating database.  Cause: org.springframework.jdbc.CannotGetJdbcConnectionException: Failed to obtain JDBC Connection; nested exception is java.sql.SQLException: The server time zone value 'Öйú±ê׼ʱ¼ä' is unrecognized or represents more than one time zone. You must configure either the server or JDBC driver (via the serverTimezone configuration property) to use a more specifc time zone value if you want to utilize time zone support.

### Cause: org.springframework.jdbc.CannotGetJdbcConnectionException: Failed to obtain JDBC Connection; nested exception is java.sql.SQLException: The server time zone value 'Öйú±ê׼ʱ¼ä' is unrecognized or represents more than one time zone. You must configure either the server or JDBC driver (via the serverTimezone configuration property) to use a more specifc time zone value if you want to utilize time zone support.

	at org.mybatis.spring.MyBatisExceptionTranslator.translateExceptionIfPossible(MyBatisExceptionTranslator.java:77)

	at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:446)

	at com.sun.proxy.$Proxy54.insert(Unknown Source)

	at org.mybatis.spring.SqlSessionTemplate.insert(SqlSessionTemplate.java:278)

	at org.apache.ibatis.binding.MapperMethod.execute(MapperMethod.java:58)

	at org.apache.ibatis.binding.MapperProxy.invoke(MapperProxy.java:59)

	at com.sun.proxy.$Proxy55.save(Unknown Source)

	at com.tuyrk._161_java_socket.project6.service.impl.FileServiceImpl.saveFile(FileServiceImpl.java:23)

	at com.tuyrk._161_java_socket.project6.service.impl.FileServiceImplTest.saveFile(FileServiceImplTest.java:18)

	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.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)

	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)

	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)

	at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)

	at org.springframework.test.context.junit4.statements.RunBeforeTestExecutionCallbacks.evaluate(RunBeforeTestExecutionCallbacks.java:74)

	at org.springframework.test.context.junit4.statements.RunAfterTestExecutionCallbacks.evaluate(RunAfterTestExecutionCallbacks.java:84)

	at org.springframework.test.context.junit4.statements.RunBeforeTestMethodCallbacks.evaluate(RunBeforeTestMethodCallbacks.java:75)

	at org.springframework.test.context.junit4.statements.RunAfterTestMethodCallbacks.evaluate(RunAfterTestMethodCallbacks.java:86)

	at org.springframework.test.context.junit4.statements.SpringRepeat.evaluate(SpringRepeat.java:84)

	at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)

	at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:251)

	at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:97)

	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)

	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)

	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)

	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)

	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)

	at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61)

	at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:70)

	at org.junit.runners.ParentRunner.run(ParentRunner.java:363)

	at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:190)

	at org.junit.runner.JUnitCore.run(JUnitCore.java:137)

	at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68)

	at com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:47)

	at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:242)

	at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70)

Caused by: org.apache.ibatis.exceptions.PersistenceException:

### Error updating database.  Cause: org.springframework.jdbc.CannotGetJdbcConnectionException: Failed to obtain JDBC Connection; nested exception is java.sql.SQLException: The server time zone value 'Öйú±ê׼ʱ¼ä' is unrecognized or represents more than one time zone. You must configure either the server or JDBC driver (via the serverTimezone configuration property) to use a more specifc time zone value if you want to utilize time zone support.

### Cause: org.springframework.jdbc.CannotGetJdbcConnectionException: Failed to obtain JDBC Connection; nested exception is java.sql.SQLException: The server time zone value 'Öйú±ê׼ʱ¼ä' is unrecognized or represents more than one time zone. You must configure either the server or JDBC driver (via the serverTimezone configuration property) to use a more specifc time zone value if you want to utilize time zone support.

	at org.apache.ibatis.exceptions.ExceptionFactory.wrapException(ExceptionFactory.java:30)

	at org.apache.ibatis.session.defaults.DefaultSqlSession.update(DefaultSqlSession.java:200)

	at org.apache.ibatis.session.defaults.DefaultSqlSession.insert(DefaultSqlSession.java:185)

	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.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:433)

	... 37 more

Caused by: org.springframework.jdbc.CannotGetJdbcConnectionException: Failed to obtain JDBC Connection; nested exception is java.sql.SQLException: The server time zone value 'Öйú±ê׼ʱ¼ä' is unrecognized or represents more than one time zone. You must configure either the server or JDBC driver (via the serverTimezone configuration property) to use a more specifc time zone value if you want to utilize time zone support.

	at org.springframework.jdbc.datasource.DataSourceUtils.getConnection(DataSourceUtils.java:81)

	at org.mybatis.spring.transaction.SpringManagedTransaction.openConnection(SpringManagedTransaction.java:82)

	at org.mybatis.spring.transaction.SpringManagedTransaction.getConnection(SpringManagedTransaction.java:68)

	at org.apache.ibatis.executor.BaseExecutor.getConnection(BaseExecutor.java:338)

	at org.apache.ibatis.executor.SimpleExecutor.prepareStatement(SimpleExecutor.java:84)

	at org.apache.ibatis.executor.SimpleExecutor.doUpdate(SimpleExecutor.java:49)

	at org.apache.ibatis.executor.BaseExecutor.update(BaseExecutor.java:117)

	at org.apache.ibatis.executor.CachingExecutor.update(CachingExecutor.java:76)

	at org.apache.ibatis.session.defaults.DefaultSqlSession.update(DefaultSqlSession.java:198)

	... 43 more

Caused by: java.sql.SQLException: The server time zone value 'Öйú±ê׼ʱ¼ä' is unrecognized or represents more than one time zone. You must configure either the server or JDBC driver (via the serverTimezone configuration property) to use a more specifc time zone value if you want to utilize time zone support.

	at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:129)

	at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:97)

	at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:89)

	at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:63)

	at com.mysql.cj.jdbc.exceptions.SQLError.createSQLException(SQLError.java:73)

	at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:76)

	at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:835)

	at com.mysql.cj.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:455)

	at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:240)

	at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:207)

	at com.zaxxer.hikari.util.DriverDataSource.getConnection(DriverDataSource.java:136)

	at com.zaxxer.hikari.pool.PoolBase.newConnection(PoolBase.java:369)

	at com.zaxxer.hikari.pool.PoolBase.newPoolEntry(PoolBase.java:198)

	at com.zaxxer.hikari.pool.HikariPool.createPoolEntry(HikariPool.java:467)

	at com.zaxxer.hikari.pool.HikariPool.checkFailFast(HikariPool.java:541)

	at com.zaxxer.hikari.pool.HikariPool.<init>(HikariPool.java:115)

	at com.zaxxer.hikari.HikariDataSource.getConnection(HikariDataSource.java:112)

	at org.springframework.jdbc.datasource.DataSourceUtils.fetchConnection(DataSourceUtils.java:151)

	at org.springframework.jdbc.datasource.DataSourceUtils.doGetConnection(DataSourceUtils.java:115)

	at org.springframework.jdbc.datasource.DataSourceUtils.getConnection(DataSourceUtils.java:78)

	... 51 more

Caused by: com.mysql.cj.exceptions.InvalidConnectionAttributeException: The server time zone value 'Öйú±ê׼ʱ¼ä' is unrecognized or represents more than one time zone. You must configure either the server or JDBC driver (via the serverTimezone configuration property) to use a more specifc time zone value if you want to utilize time zone support.

	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)

	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)

	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)

	at java.lang.reflect.Constructor.newInstance(Constructor.java:423)

	at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)

	at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:85)

	at com.mysql.cj.util.TimeUtil.getCanonicalTimezone(TimeUtil.java:132)

	at com.mysql.cj.protocol.a.NativeProtocol.configureTimezone(NativeProtocol.java:2234)

	at com.mysql.cj.protocol.a.NativeProtocol.initServerSession(NativeProtocol.java:2258)

	at com.mysql.cj.jdbc.ConnectionImpl.initializePropsFromServer(ConnectionImpl.java:1319)

	at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:966)

	at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:825)

	... 64 more

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