14. XML
- Review the presentation XML
- Explore the jtm.activity14 package
- Implement the methods of the XMLCars.java class to pass unit tests.
Error number 4001 in 4: Error while evaluating velocity template menus_view.vm
Error number 4001 in 4: Error while evaluating velocity template menus_view.vm com.xpn.xwiki.XWikiException: Error number 4001 in 4: Error while evaluating velocity template menus_view.vm at com.xpn.xwiki.XWiki.evaluateTemplate(XWiki.java:2521) at com.xpn.xwiki.XWiki.parseTemplate(XWiki.java:2494) at com.xpn.xwiki.api.XWiki.parseTemplate(XWiki.java:983) at jdk.internal.reflect.GeneratedMethodAccessor145.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$VelMethodImpl.doInvoke(UberspectImpl.java:565) at org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.invoke(UberspectImpl.java:548) at org.apache.velocity.runtime.parser.node.ASTMethod.execute(ASTMethod.java:219) at org.apache.velocity.runtime.parser.node.ASTReference.execute(ASTReference.java:369) at org.apache.velocity.runtime.parser.node.ASTReference.render(ASTReference.java:490) at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:144) at org.apache.velocity.runtime.directive.VelocimacroProxy.render(VelocimacroProxy.java:215) at org.apache.velocity.runtime.directive.RuntimeMacro.render(RuntimeMacro.java:328) at org.apache.velocity.runtime.directive.RuntimeMacro.render(RuntimeMacro.java:258) at org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective.java:301) at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:144) at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:172) at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:423) 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$0(DefaultAsyncRendererExecutor.java:267) at com.xpn.xwiki.internal.security.authorization.DefaultAuthorExecutor.call(DefaultAuthorExecutor.java:98) at org.xwiki.rendering.async.internal.DefaultAsyncRendererExecutor.syncRender(DefaultAsyncRendererExecutor.java:267) at org.xwiki.rendering.async.internal.DefaultAsyncRendererExecutor.render(DefaultAsyncRendererExecutor.java:250) at org.xwiki.rendering.async.internal.block.DefaultBlockAsyncRendererExecutor.render(DefaultBlockAsyncRendererExecutor.java:154) at com.xpn.xwiki.internal.template.InternalTemplateManager.render(InternalTemplateManager.java:772) at com.xpn.xwiki.internal.template.InternalTemplateManager.renderFromSkin(InternalTemplateManager.java:745) at com.xpn.xwiki.internal.template.InternalTemplateManager.renderFromSkin(InternalTemplateManager.java:725) at com.xpn.xwiki.internal.template.InternalTemplateManager.render(InternalTemplateManager.java:711) at com.xpn.xwiki.internal.template.DefaultTemplateManager.render(DefaultTemplateManager.java:78) at com.xpn.xwiki.XWiki.evaluateTemplate(XWiki.java:2516) at com.xpn.xwiki.XWiki.parseTemplate(XWiki.java:2494) at com.xpn.xwiki.api.XWiki.parseTemplate(XWiki.java:983) at jdk.internal.reflect.GeneratedMethodAccessor145.invoke(Unknown Source) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:566) at org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.doInvoke(UberspectImpl.java:565) at org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.invoke(UberspectImpl.java:548) at org.apache.velocity.runtime.parser.node.ASTMethod.execute(ASTMethod.java:219) at org.apache.velocity.runtime.parser.node.ASTReference.execute(ASTReference.java:369) at org.apache.velocity.runtime.parser.node.ASTReference.render(ASTReference.java:490) at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:144) at org.apache.velocity.runtime.directive.VelocimacroProxy.render(VelocimacroProxy.java:215) at org.apache.velocity.runtime.directive.RuntimeMacro.render(RuntimeMacro.java:328) at org.apache.velocity.runtime.directive.RuntimeMacro.render(RuntimeMacro.java:258) at org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective.java:301) at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:144) at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:423) at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:191) at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:423) at org.apache.velocity.Template.merge(Template.java:358) at org.apache.velocity.Template.merge(Template.java:262) at org.xwiki.velocity.internal.DefaultVelocityEngine.evaluate(DefaultVelocityEngine.java:280) at com.xpn.xwiki.render.DefaultVelocityManager.evaluate(DefaultVelocityManager.java:321) at com.xpn.xwiki.internal.template.VelocityTemplateEvaluator.evaluateContent(VelocityTemplateEvaluator.java:95) at com.xpn.xwiki.internal.template.TemplateAsyncRenderer.evaluateContent(TemplateAsyncRenderer.java:217) at com.xpn.xwiki.internal.template.TemplateAsyncRenderer.renderVelocity(TemplateAsyncRenderer.java:180) at com.xpn.xwiki.internal.template.TemplateAsyncRenderer.render(TemplateAsyncRenderer.java:137) at com.xpn.xwiki.internal.template.TemplateAsyncRenderer.render(TemplateAsyncRenderer.java:53) at org.xwiki.rendering.async.internal.DefaultAsyncRendererExecutor.lambda$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:2516) 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:283) at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:425) at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:228) at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1913) at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:449) at javax.servlet.http.HttpServlet.service(HttpServlet.java:634) 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.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$WrappingRunnable.run(TaskThread.java:61) at java.base/java.lang.Thread.run(Thread.java:829) Caused by: org.xwiki.rendering.RenderingException: Failed to execute renderer at org.xwiki.rendering.async.internal.DefaultAsyncRendererExecutor.syncRender(DefaultAsyncRendererExecutor.java:270) at org.xwiki.rendering.async.internal.DefaultAsyncRendererExecutor.render(DefaultAsyncRendererExecutor.java:250) at org.xwiki.rendering.async.internal.block.DefaultBlockAsyncRendererExecutor.render(DefaultBlockAsyncRendererExecutor.java:154) at com.xpn.xwiki.internal.template.InternalTemplateManager.render(InternalTemplateManager.java:772) at com.xpn.xwiki.internal.template.InternalTemplateManager.renderFromSkin(InternalTemplateManager.java:745) at com.xpn.xwiki.internal.template.InternalTemplateManager.renderFromSkin(InternalTemplateManager.java:725) at com.xpn.xwiki.internal.template.InternalTemplateManager.render(InternalTemplateManager.java:711) at com.xpn.xwiki.internal.template.DefaultTemplateManager.render(DefaultTemplateManager.java:78) at com.xpn.xwiki.XWiki.evaluateTemplate(XWiki.java:2516) ... 123 more Caused by: org.xwiki.rendering.RenderingException: Failed to evaluate template with id [xwiki:Custom.OdoTheme^XWiki.XWikiSkins[0].menus_view\.vm] at com.xpn.xwiki.internal.template.TemplateAsyncRenderer.evaluateContent(TemplateAsyncRenderer.java:219) at com.xpn.xwiki.internal.template.TemplateAsyncRenderer.renderVelocity(TemplateAsyncRenderer.java:180) at com.xpn.xwiki.internal.template.TemplateAsyncRenderer.render(TemplateAsyncRenderer.java:137) at com.xpn.xwiki.internal.template.TemplateAsyncRenderer.render(TemplateAsyncRenderer.java:53) at org.xwiki.rendering.async.internal.DefaultAsyncRendererExecutor.lambda$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) ... 131 more Caused by: org.xwiki.velocity.XWikiVelocityException: Failed to evaluate content with namespace [xwiki:Custom.OdoTheme^XWiki.XWikiSkins[0].view\.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) ... 137 more Caused by: org.apache.velocity.exception.MethodInvocationException: Invocation of method 'getTranslationLocales' in class com.xpn.xwiki.api.Document threw exception com.xpn.xwiki.XWikiException: Error number 3223 in 3: Failed to retrieve the list of translations for [xwiki:Training.DatZB028Exercise14] at xwiki:Custom.OdoTheme^XWiki.XWikiSkins[0].view\.vm[line 17, column 32] at org.apache.velocity.runtime.parser.node.ASTMethod.handleInvocationException(ASTMethod.java:306) at org.apache.velocity.runtime.parser.node.ASTMethod.execute(ASTMethod.java:233) at org.apache.velocity.runtime.parser.node.ASTReference.execute(ASTReference.java:369) at org.apache.velocity.runtime.parser.node.ASTReference.value(ASTReference.java:701) at org.apache.velocity.runtime.directive.Foreach.render(Foreach.java:234) at org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective.java:301) at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:144) at org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:172) at org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:423) 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) ... 140 more Caused by: com.xpn.xwiki.XWikiException: Error number 3223 in 3: Failed to retrieve the list of translations for [xwiki:Training.DatZB028Exercise14] at com.xpn.xwiki.store.XWikiHibernateStore.getTranslationList(XWikiHibernateStore.java:3265) at com.xpn.xwiki.store.XWikiCacheStore.getTranslationList(XWikiCacheStore.java:817) at com.xpn.xwiki.doc.XWikiDocument.getTranslationList(XWikiDocument.java:6429) at com.xpn.xwiki.doc.XWikiDocument.getTranslationLocales(XWikiDocument.java:6445) at com.xpn.xwiki.api.Document.getTranslationLocales(Document.java:706) at jdk.internal.reflect.GeneratedMethodAccessor293.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:565) at org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.invoke(UberspectImpl.java:548) at org.apache.velocity.runtime.parser.node.ASTMethod.execute(ASTMethod.java:219) ... 150 more Caused by: org.xwiki.query.QueryException: Exception while executing query. Query statement = [select doc.language from XWikiDocument as doc where doc.space = :space and doc.name = :name and (doc.language <> '' or (doc.language is not null and '' is null))] at com.xpn.xwiki.store.hibernate.query.HqlQueryExecutor.execute(HqlQueryExecutor.java:176) at org.xwiki.query.internal.DefaultQueryExecutorManager.execute(DefaultQueryExecutorManager.java:72) at org.xwiki.query.internal.DefaultQuery.execute(DefaultQuery.java:306) at com.xpn.xwiki.store.XWikiHibernateStore.getTranslationList(XWikiHibernateStore.java:3278) at com.xpn.xwiki.store.XWikiHibernateStore.getTranslationList(XWikiHibernateStore.java:3260) ... 160 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.hibernate.query.HqlQueryExecutor.execute(HqlQueryExecutor.java:164) ... 164 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:273) at org.hibernate.resource.jdbc.internal.LogicalConnectionManagedImpl.begin(LogicalConnectionManagedImpl.java:281) 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:471) at org.hibernate.engine.spi.SessionDelegatorBaseImpl.beginTransaction(SessionDelegatorBaseImpl.java:486) at com.xpn.xwiki.internal.store.hibernate.HibernateStore.beginTransaction(HibernateStore.java:804) at com.xpn.xwiki.internal.store.hibernate.HibernateStore.beginTransaction(HibernateStore.java:754) 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.GeneratedConstructorAccessor1497.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
