Cannot connect to MySQL, no additional documentation about DB config

[zipwiz]

I simply cloned & built -- OK. Running the application caused:

Caused by: java.sql.SQLException: Unable to load authentication plugin 'caching_sha2_password'. at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:868) at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:864) at com.mysql.jdbc.MysqlIO.proceedHandshakeWithPluggableAuthentication(MysqlIO.java:1746) at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1226) at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2194) at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2225) at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2024) at com.mysql.jdbc.ConnectionImpl.(ConnectionImpl.java:779) at com.mysql.jdbc.JDBC4Connection.(JDBC4Connection.java:47) at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:490) at com.mysql.jdbc.Util.handleNewInstance(Util.java:425) at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:389) at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:330) at com.zaxxer.hikari.util.DriverDataSource.getConnection(DriverDataSource.java:95) at com.zaxxer.hikari.util.DriverDataSource.getConnection(DriverDataSource.java:101) at com.zaxxer.hikari.pool.PoolBase.newConnection(PoolBase.java:341) at com.zaxxer.hikari.pool.HikariPool.checkFailFast(HikariPool.java:506)

I cannot find any hint on how to configure DB or DB access. How should this work?

[greatidea1]

Even I have faced this, and couldn't get through working this