Error number 4001 in 4: Error while evaluating velocity template code.vm
com.xpn.xwiki.XWikiException: Error number 4001 in 4: Error while evaluating velocity template code.vm
	at com.xpn.xwiki.XWiki.evaluateTemplate(XWiki.java:2528)
	at com.xpn.xwiki.XWiki.parseTemplate(XWiki.java:2501)
	at com.xpn.xwiki.api.XWiki.parseTemplate(XWiki.java:997)
	at jdk.internal.reflect.GeneratedMethodAccessor167.invoke(Unknown Source)
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
	at org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.doInvoke(UberspectImpl.java:571)
	at org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.invoke(UberspectImpl.java:554)
	at org.apache.velocity.runtime.parser.node.ASTMethod.execute(ASTMethod.java:221)
	at org.apache.velocity.runtime.parser.node.ASTReference.execute(ASTReference.java:368)
	at org.apache.velocity.runtime.parser.node.ASTReference.render(ASTReference.java:492)
	at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:147)
	at org.apache.velocity.runtime.directive.VelocimacroProxy.render(VelocimacroProxy.java:218)
	at org.apache.velocity.runtime.directive.RuntimeMacro.render(RuntimeMacro.java:331)
	at org.apache.velocity.runtime.directive.RuntimeMacro.render(RuntimeMacro.java:261)
	at org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective.java:304)
	at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:147)
	at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:439)
	at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:190)
	at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:147)
	at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:439)
	at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:190)
	at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:439)
	at org.apache.velocity.Template.merge(Template.java:358)
	at org.apache.velocity.Template.merge(Template.java:262)
	at org.xwiki.velocity.internal.DefaultVelocityEngine.evaluate(DefaultVelocityEngine.java:280)
	at com.xpn.xwiki.render.DefaultVelocityManager.evaluate(DefaultVelocityManager.java:321)
	at com.xpn.xwiki.internal.template.VelocityTemplateEvaluator.evaluateContent(VelocityTemplateEvaluator.java:95)
	at com.xpn.xwiki.internal.template.TemplateAsyncRenderer.evaluateContent(TemplateAsyncRenderer.java:217)
	at com.xpn.xwiki.internal.template.TemplateAsyncRenderer.renderVelocity(TemplateAsyncRenderer.java:180)
	at com.xpn.xwiki.internal.template.TemplateAsyncRenderer.render(TemplateAsyncRenderer.java:137)
	at com.xpn.xwiki.internal.template.TemplateAsyncRenderer.render(TemplateAsyncRenderer.java:53)
	at org.xwiki.rendering.async.internal.DefaultAsyncRendererExecutor.lambda$syncRender$0(DefaultAsyncRendererExecutor.java:267)
	at com.xpn.xwiki.internal.security.authorization.DefaultAuthorExecutor.call(DefaultAuthorExecutor.java:98)
	at org.xwiki.rendering.async.internal.DefaultAsyncRendererExecutor.syncRender(DefaultAsyncRendererExecutor.java:267)
	at org.xwiki.rendering.async.internal.DefaultAsyncRendererExecutor.render(DefaultAsyncRendererExecutor.java:250)
	at org.xwiki.rendering.async.internal.block.DefaultBlockAsyncRendererExecutor.render(DefaultBlockAsyncRendererExecutor.java:154)
	at com.xpn.xwiki.internal.template.InternalTemplateManager.render(InternalTemplateManager.java:772)
	at com.xpn.xwiki.internal.template.InternalTemplateManager.renderFromSkin(InternalTemplateManager.java:745)
	at com.xpn.xwiki.internal.template.InternalTemplateManager.renderFromSkin(InternalTemplateManager.java:725)
	at com.xpn.xwiki.internal.template.InternalTemplateManager.render(InternalTemplateManager.java:711)
	at com.xpn.xwiki.internal.template.DefaultTemplateManager.render(DefaultTemplateManager.java:78)
	at com.xpn.xwiki.XWiki.evaluateTemplate(XWiki.java:2523)
	at com.xpn.xwiki.XWiki.parseTemplate(XWiki.java:2501)
	at com.xpn.xwiki.api.XWiki.parseTemplate(XWiki.java:997)
	at jdk.internal.reflect.GeneratedMethodAccessor167.invoke(Unknown Source)
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
	at org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.doInvoke(UberspectImpl.java:571)
	at org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.invoke(UberspectImpl.java:554)
	at org.apache.velocity.runtime.parser.node.ASTMethod.execute(ASTMethod.java:221)
	at org.apache.velocity.runtime.parser.node.ASTReference.execute(ASTReference.java:368)
	at org.apache.velocity.runtime.parser.node.ASTReference.render(ASTReference.java:492)
	at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:147)
	at org.apache.velocity.runtime.directive.VelocimacroProxy.render(VelocimacroProxy.java:218)
	at org.apache.velocity.runtime.directive.RuntimeMacro.render(RuntimeMacro.java:331)
	at org.apache.velocity.runtime.directive.RuntimeMacro.render(RuntimeMacro.java:261)
	at org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective.java:304)
	at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:439)
	at org.apache.velocity.Template.merge(Template.java:358)
	at org.apache.velocity.Template.merge(Template.java:262)
	at org.xwiki.velocity.internal.DefaultVelocityEngine.evaluate(DefaultVelocityEngine.java:280)
	at com.xpn.xwiki.render.DefaultVelocityManager.evaluate(DefaultVelocityManager.java:321)
	at com.xpn.xwiki.internal.template.VelocityTemplateEvaluator.evaluateContent(VelocityTemplateEvaluator.java:95)
	at com.xpn.xwiki.internal.template.TemplateAsyncRenderer.evaluateContent(TemplateAsyncRenderer.java:217)
	at com.xpn.xwiki.internal.template.TemplateAsyncRenderer.renderVelocity(TemplateAsyncRenderer.java:180)
	at com.xpn.xwiki.internal.template.TemplateAsyncRenderer.render(TemplateAsyncRenderer.java:137)
	at com.xpn.xwiki.internal.template.TemplateAsyncRenderer.render(TemplateAsyncRenderer.java:53)
	at org.xwiki.rendering.async.internal.DefaultAsyncRendererExecutor.lambda$syncRender$0(DefaultAsyncRendererExecutor.java:267)
	at com.xpn.xwiki.internal.security.authorization.DefaultAuthorExecutor.call(DefaultAuthorExecutor.java:98)
	at org.xwiki.rendering.async.internal.DefaultAsyncRendererExecutor.syncRender(DefaultAsyncRendererExecutor.java:267)
	at org.xwiki.rendering.async.internal.DefaultAsyncRendererExecutor.render(DefaultAsyncRendererExecutor.java:250)
	at org.xwiki.rendering.async.internal.block.DefaultBlockAsyncRendererExecutor.render(DefaultBlockAsyncRendererExecutor.java:154)
	at com.xpn.xwiki.internal.template.InternalTemplateManager.render(InternalTemplateManager.java:772)
	at com.xpn.xwiki.internal.template.InternalTemplateManager.renderFromSkin(InternalTemplateManager.java:745)
	at com.xpn.xwiki.internal.template.InternalTemplateManager.renderFromSkin(InternalTemplateManager.java:725)
	at com.xpn.xwiki.internal.template.InternalTemplateManager.render(InternalTemplateManager.java:711)
	at com.xpn.xwiki.internal.template.DefaultTemplateManager.render(DefaultTemplateManager.java:78)
	at com.xpn.xwiki.XWiki.evaluateTemplate(XWiki.java:2523)
	at com.xpn.xwiki.web.Utils.parseTemplate(Utils.java:179)
	at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:605)
	at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:286)
	at com.xpn.xwiki.web.LegacyActionServlet.service(LegacyActionServlet.java:104)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
	at com.xpn.xwiki.web.ActionFilter.doFilter(ActionFilter.java:122)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
	at org.xwiki.wysiwyg.filter.ConversionFilter.doFilter(ConversionFilter.java:109)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
	at org.xwiki.container.servlet.filters.internal.SetHTTPHeaderFilter.doFilter(SetHTTPHeaderFilter.java:63)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
	at org.xwiki.container.servlet.filters.internal.SavedRequestRestorerFilter.doFilter(SavedRequestRestorerFilter.java:208)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
	at org.xwiki.container.servlet.filters.internal.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:111)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
	at org.xwiki.resource.servlet.RoutingFilter.doFilter(RoutingFilter.java:132)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:541)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)
	at org.apache.catalina.valves.RemoteIpValve.invoke(RemoteIpValve.java:747)
	at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:688)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:351)
	at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:375)
	at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65)
	at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:868)
	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1594)
	at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
	at java.base/java.lang.Thread.run(Thread.java:829)
Caused by: org.xwiki.rendering.RenderingException: Failed to execute renderer
	at org.xwiki.rendering.async.internal.DefaultAsyncRendererExecutor.syncRender(DefaultAsyncRendererExecutor.java:270)
	at org.xwiki.rendering.async.internal.DefaultAsyncRendererExecutor.render(DefaultAsyncRendererExecutor.java:250)
	at org.xwiki.rendering.async.internal.block.DefaultBlockAsyncRendererExecutor.render(DefaultBlockAsyncRendererExecutor.java:154)
	at com.xpn.xwiki.internal.template.InternalTemplateManager.render(InternalTemplateManager.java:772)
	at com.xpn.xwiki.internal.template.InternalTemplateManager.renderFromSkin(InternalTemplateManager.java:745)
	at com.xpn.xwiki.internal.template.InternalTemplateManager.renderFromSkin(InternalTemplateManager.java:725)
	at com.xpn.xwiki.internal.template.InternalTemplateManager.render(InternalTemplateManager.java:711)
	at com.xpn.xwiki.internal.template.DefaultTemplateManager.render(DefaultTemplateManager.java:78)
	at com.xpn.xwiki.XWiki.evaluateTemplate(XWiki.java:2523)
	... 121 more
Caused by: org.xwiki.rendering.RenderingException: Failed to evaluate template with id [/skins/flamingo/code.vm]
	at com.xpn.xwiki.internal.template.TemplateAsyncRenderer.evaluateContent(TemplateAsyncRenderer.java:219)
	at com.xpn.xwiki.internal.template.TemplateAsyncRenderer.renderVelocity(TemplateAsyncRenderer.java:180)
	at com.xpn.xwiki.internal.template.TemplateAsyncRenderer.render(TemplateAsyncRenderer.java:137)
	at com.xpn.xwiki.internal.template.TemplateAsyncRenderer.render(TemplateAsyncRenderer.java:53)
	at org.xwiki.rendering.async.internal.DefaultAsyncRendererExecutor.lambda$syncRender$0(DefaultAsyncRendererExecutor.java:267)
	at com.xpn.xwiki.internal.security.authorization.DefaultAuthorExecutor.call(DefaultAuthorExecutor.java:98)
	at org.xwiki.rendering.async.internal.DefaultAsyncRendererExecutor.syncRender(DefaultAsyncRendererExecutor.java:267)
	... 129 more
Caused by: org.xwiki.velocity.XWikiVelocityException: Failed to evaluate content with namespace [/templates/print.vm]
	at org.xwiki.velocity.internal.DefaultVelocityEngine.evaluate(DefaultVelocityEngine.java:288)
	at com.xpn.xwiki.render.DefaultVelocityManager.evaluate(DefaultVelocityManager.java:321)
	at com.xpn.xwiki.internal.template.VelocityTemplateEvaluator.evaluateContent(VelocityTemplateEvaluator.java:95)
	at com.xpn.xwiki.internal.template.TemplateAsyncRenderer.evaluateContent(TemplateAsyncRenderer.java:217)
	... 135 more
Caused by: org.apache.velocity.exception.MethodInvocationException: Invocation of method 'getRevisionInfo' in  class com.xpn.xwiki.api.Document threw exception com.xpn.xwiki.XWikiException: Error number 3212 in 3: Exception while loading archive -5,076,967,064,532,112,905 at /templates/print.vm[line 55, column 62]
	at org.apache.velocity.runtime.parser.node.ASTMethod.handleInvocationException(ASTMethod.java:308)
	at org.apache.velocity.runtime.parser.node.ASTMethod.execute(ASTMethod.java:235)
	at org.apache.velocity.runtime.parser.node.ASTReference.execute(ASTReference.java:368)
	at org.apache.velocity.runtime.parser.node.ASTReference.value(ASTReference.java:704)
	at org.apache.velocity.runtime.parser.node.ASTExpression.value(ASTExpression.java:75)
	at org.apache.velocity.runtime.parser.node.ASTMethod.execute(ASTMethod.java:167)
	at org.apache.velocity.runtime.parser.node.ASTReference.execute(ASTReference.java:368)
	at org.apache.velocity.runtime.parser.node.ASTReference.value(ASTReference.java:704)
	at org.apache.velocity.runtime.parser.node.ASTExpression.value(ASTExpression.java:75)
	at org.apache.velocity.runtime.parser.node.ASTSetDirective.render(ASTSetDirective.java:242)
	at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:147)
	at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:171)
	at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:439)
	at org.apache.velocity.Template.merge(Template.java:358)
	at org.apache.velocity.Template.merge(Template.java:262)
	at org.xwiki.velocity.internal.DefaultVelocityEngine.evaluate(DefaultVelocityEngine.java:280)
	... 138 more
Caused by: com.xpn.xwiki.XWikiException: Error number 3212 in 3: Exception while loading archive -5,076,967,064,532,112,905
	at com.xpn.xwiki.store.XWikiHibernateVersioningStore.loadXWikiDocArchive(XWikiHibernateVersioningStore.java:169)
	at com.xpn.xwiki.store.XWikiHibernateVersioningStore.getXWikiDocumentArchive(XWikiHibernateVersioningStore.java:149)
	at com.xpn.xwiki.doc.XWikiDocument.loadArchive(XWikiDocument.java:2333)
	at com.xpn.xwiki.doc.XWikiDocument.getDocumentArchive(XWikiDocument.java:2268)
	at com.xpn.xwiki.doc.XWikiDocument.getRevisionInfo(XWikiDocument.java:2489)
	at com.xpn.xwiki.api.Document.getRevisionInfo(Document.java:1444)
	at jdk.internal.reflect.GeneratedMethodAccessor494.invoke(Unknown Source)
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
	at org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.doInvoke(UberspectImpl.java:571)
	at org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.invoke(UberspectImpl.java:554)
	at org.apache.velocity.runtime.parser.node.ASTMethod.execute(ASTMethod.java:221)
	... 152 more
Caused by: com.xpn.xwiki.XWikiException: Error number 0 in 3: Exception while hibernate execute
	at com.xpn.xwiki.store.XWikiHibernateBaseStore.execute(XWikiHibernateBaseStore.java:826)
	at com.xpn.xwiki.store.XWikiHibernateBaseStore.executeRead(XWikiHibernateBaseStore.java:889)
	at com.xpn.xwiki.store.XWikiHibernateVersioningStore.loadAllRCSNodeInfo(XWikiHibernateVersioningStore.java:293)
	at com.xpn.xwiki.store.XWikiHibernateVersioningStore.loadXWikiDocArchive(XWikiHibernateVersioningStore.java:165)
	... 163 more
Caused by: org.hibernate.exception.JDBCConnectionException: Unable to acquire JDBC Connection
	at org.hibernate.exception.internal.SQLStateConversionDelegate.convert(SQLStateConversionDelegate.java:112)
	at org.hibernate.exception.internal.StandardSQLExceptionConverter.convert(StandardSQLExceptionConverter.java:42)
	at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:113)
	at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:99)
	at org.hibernate.resource.jdbc.internal.LogicalConnectionManagedImpl.acquireConnectionIfNeeded(LogicalConnectionManagedImpl.java:111)
	at org.hibernate.resource.jdbc.internal.LogicalConnectionManagedImpl.getPhysicalConnection(LogicalConnectionManagedImpl.java:138)
	at org.hibernate.resource.jdbc.internal.LogicalConnectionManagedImpl.getConnectionForTransactionManagement(LogicalConnectionManagedImpl.java:274)
	at org.hibernate.resource.jdbc.internal.LogicalConnectionManagedImpl.begin(LogicalConnectionManagedImpl.java:282)
	at org.hibernate.resource.transaction.backend.jdbc.internal.JdbcResourceLocalTransactionCoordinatorImpl$TransactionDriverControlImpl.begin(JdbcResourceLocalTransactionCoordinatorImpl.java:246)
	at org.hibernate.engine.transaction.internal.TransactionImpl.begin(TransactionImpl.java:83)
	at org.hibernate.internal.AbstractSharedSessionContract.beginTransaction(AbstractSharedSessionContract.java:480)
	at org.hibernate.engine.spi.SessionDelegatorBaseImpl.beginTransaction(SessionDelegatorBaseImpl.java:486)
	at com.xpn.xwiki.internal.store.hibernate.HibernateStore.beginTransaction(HibernateStore.java:802)
	at com.xpn.xwiki.internal.store.hibernate.HibernateStore.beginTransaction(HibernateStore.java:753)
	at com.xpn.xwiki.store.XWikiHibernateBaseStore.beginTransaction(XWikiHibernateBaseStore.java:532)
	at com.xpn.xwiki.store.XWikiHibernateBaseStore.execute(XWikiHibernateBaseStore.java:819)
	... 166 more
Caused by: com.mysql.cj.jdbc.exceptions.CommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
	at com.mysql.cj.jdbc.exceptions.SQLError.createCommunicationsException(SQLError.java:174)
	at com.mysql.cj.jdbc.exceptions.SQLExceptionsMapping.translateException(SQLExceptionsMapping.java:64)
	at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:833)
	at com.mysql.cj.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:453)
	at com.mysql.cj.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:246)
	at com.mysql.cj.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:198)
	at org.apache.commons.dbcp2.DriverConnectionFactory.createConnection(DriverConnectionFactory.java:52)
	at org.apache.commons.dbcp2.PoolableConnectionFactory.makeObject(PoolableConnectionFactory.java:357)
	at org.apache.commons.pool2.impl.GenericObjectPool.create(GenericObjectPool.java:918)
	at org.apache.commons.pool2.impl.GenericObjectPool.borrowObject(GenericObjectPool.java:431)
	at org.apache.commons.pool2.impl.GenericObjectPool.borrowObject(GenericObjectPool.java:356)
	at org.apache.commons.dbcp2.PoolingDataSource.getConnection(PoolingDataSource.java:134)
	at org.apache.commons.dbcp2.BasicDataSource.getConnection(BasicDataSource.java:734)
	at com.xpn.xwiki.store.DBCPConnectionProvider.getConnection(DBCPConnectionProvider.java:258)
	at org.hibernate.internal.NonContextualJdbcConnectionAccess.obtainConnection(NonContextualJdbcConnectionAccess.java:38)
	at org.hibernate.resource.jdbc.internal.LogicalConnectionManagedImpl.acquireConnectionIfNeeded(LogicalConnectionManagedImpl.java:108)
	... 177 more
Caused by: com.mysql.cj.exceptions.CJCommunicationsException: Communications link failure

The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server.
	at jdk.internal.reflect.GeneratedConstructorAccessor22357.newInstance(Unknown Source)
	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.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:61)
	at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:105)
	at com.mysql.cj.exceptions.ExceptionFactory.createException(ExceptionFactory.java:151)
	at com.mysql.cj.exceptions.ExceptionFactory.createCommunicationsException(ExceptionFactory.java:167)
	at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:89)
	at com.mysql.cj.NativeSession.connect(NativeSession.java:144)
	at com.mysql.cj.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:953)
	at com.mysql.cj.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:823)
	... 190 more
Caused by: java.net.ConnectException: Connection refused (Connection refused)
	at java.base/java.net.PlainSocketImpl.socketConnect(Native Method)
	at java.base/java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:412)
	at java.base/java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:255)
	at java.base/java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:237)
	at java.base/java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
	at java.base/java.net.Socket.connect(Socket.java:609)
	at com.mysql.cj.protocol.StandardSocketFactory.connect(StandardSocketFactory.java:155)
	at com.mysql.cj.protocol.a.NativeSocketConnection.connect(NativeSocketConnection.java:63)
	... 193 more