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Cannot update schema
com.atlassian.config.ConfigurationException: Cannot update schema at bucket.core.persistence.hibernate.schema.SchemaHelper.updateSchemaIfNeeded(SchemaHelper.java:159) at bucket.core.persistence.hibernate.schema.SchemaHelper.updateSchemaIfNeeded(SchemaHelper.java:142) at com.atlassian.upgrade.AbstractUpgradeManager.upgradeSchema(AbstractUpgradeManager.java:137) at com.atlassian.upgrade.AbstractUpgradeManager.upgrade(AbstractUpgradeManager.java:46) at com.atlassian.confluence.upgrade.impl.DefaultUpgradeManager.upgrade(DefaultUpgradeManager.java:57) at com.atlassian.upgrade.UpgradeLauncherServletContextListener.contextInitialized(UpgradeLauncherServletContextListener.java:26) at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:3729) at org.apache.catalina.core.StandardContext.start(StandardContext.java:4187) at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:759) at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:739) at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:524) at org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:608) at org.apache.catalina.startup.HostConfig.deployDescriptors(HostConfig.java:535) at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:470) at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1122) at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:310) at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1021) at org.apache.catalina.core.StandardHost.start(StandardHost.java:718) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1013) at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:442) at org.apache.catalina.core.StandardService.start(StandardService.java:450) at org.apache.catalina.core.StandardServer.start(StandardServer.java:709) at org.apache.catalina.startup.Catalina.start(Catalina.java:551) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:585) at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:294) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:432)Caused by: net.sf.hibernate.HibernateException: Dialect class not found: bucket.dialect.MySQLDialect at net.sf.hibernate.dialect.Dialect.getDialect(Dialect.java:396) at net.sf.hibernate.tool.hbm2ddl.SchemaUpdate.<init>(SchemaUpdate.java:40) at net.sf.hibernate.tool.hbm2ddl.SchemaUpdate.<init>(SchemaUpdate.java:35) at bucket.core.persistence.hibernate.schema.SchemaHelper.updateSchemaIfNeeded(SchemaHelper.java:155) ... 29 more