A database error occurred, probably because your database connection is misconfigured. You will have to fix this problem and then restart or redeploy Roller before you can proceed. Here's what happened when Roller tried to establish a connection:
In case the clues above are not enough to help you figure out what is going wrong, here are some more details. The root cause of the problem is an exception of type [com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException]
To help you debug the problem, here is the stack trace for that exception:
[com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: Could not create connection to database server. Attempted reconnect 3 times. Giving up.
at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:77)
at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.base/java.lang.reflect.Constructor.newInstanceWithCaller(Constructor.java:500)
at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:481)
at com.mysql.jdbc.Util.handleNewInstance(Util.java:409)
at com.mysql.jdbc.Util.getInstance(Util.java:384)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1013)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:987)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:973)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:918)
at com.mysql.jdbc.ConnectionImpl.connectWithRetries(ConnectionImpl.java:2405)
at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2326)
at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:832)
at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:46)
at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at java.base/jdk.internal.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:77)
at java.base/jdk.internal.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.base/java.lang.reflect.Constructor.newInstanceWithCaller(Constructor.java:500)
at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:481)
at com.mysql.jdbc.Util.handleNewInstance(Util.java:409)
at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:417)
at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:344)
at java.sql/java.sql.DriverManager.getConnection(DriverManager.java:681)
at java.sql/java.sql.DriverManager.getConnection(DriverManager.java:190)
at org.apache.roller.weblogger.business.DatabaseProvider.getConnection(DatabaseProvider.java:180)
at org.apache.roller.weblogger.business.DatabaseProvider.<init>(DatabaseProvider.java:144)
at org.apache.roller.weblogger.business.startup.WebloggerStartup.prepare(WebloggerStartup.java:169)
at org.apache.roller.weblogger.ui.core.RollerContext.contextInitialized(RollerContext.java:140)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4034)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:4462)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:164)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:597)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:569)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:665)
at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:962)
at org.apache.catalina.startup.HostConfig$DeployWar.run(HostConfig.java:1900)
at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539)
at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:81)
at java.base/java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:123)
at org.apache.catalina.startup.HostConfig.deployWARs(HostConfig.java:766)
at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:417)
at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1618)
at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:300)
at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:109)
at org.apache.catalina.util.LifecycleBase.setStateInternal(LifecycleBase.java:389)
at org.apache.catalina.util.LifecycleBase.setState(LifecycleBase.java:336)
at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:774)
at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:783)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:164)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1201)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1191)
at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:81)
at java.base/java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:145)
at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:747)
at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:201)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:164)
at org.apache.catalina.core.StandardService.startInternal(StandardService.java:410)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:164)
at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:868)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:164)
at org.apache.catalina.startup.Catalina.start(Catalina.java:758)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:569)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:342)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:477)
Caused by: java.sql.SQLException: Access denied for user 'root'@'localhost' (using password: NO)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1084)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:4232)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:4164)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:926)
at com.mysql.jdbc.MysqlIO.proceedHandshakeWithPluggableAuthentication(MysqlIO.java:1748)
at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1288)
at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2506)
at com.mysql.jdbc.ConnectionImpl.connectWithRetries(ConnectionImpl.java:2344)
... 58 more]