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Error details: Communications link failure due to underlying exception: ** BEGIN NESTED EXCEPTION ** java.net.SocketException MESSAGE: java.net.ConnectException: Connection refused (Connection refused) STACKTRACE: java.net.SocketException: java.net.ConnectException: Connection refused (Connection refused) at com.mysql.jdbc.StandardSocketFactory.connect(StandardSocketFactory.java:156) at com.mysql.jdbc.MysqlIO.(MysqlIO.java:276) at com.mysql.jdbc.Connection.createNewIO(Connection.java:2641) at com.mysql.jdbc.Connection.(Connection.java:1531) at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:266) at java.sql/java.sql.DriverManager.getConnection(DriverManager.java:677) at java.sql/java.sql.DriverManager.getConnection(DriverManager.java:228) at org.apache.jsp.view_jsp.connectToDatabase(view_jsp.java:545) at org.apache.jsp.view_jsp._jspService(view_jsp.java:1002) at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70) at javax.servlet.http.HttpServlet.service(HttpServlet.java:764) at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:466) at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:379) at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:327) at javax.servlet.http.HttpServlet.service(HttpServlet.java:764) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:227) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:197) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:97) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:540) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:135) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:687) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:78) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:359) at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:399) at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65) at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:889) at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1735) at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) at org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1191) at org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:659) at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) at java.base/java.lang.Thread.run(Thread.java:829) ** END NESTED EXCEPTION ** Last packet sent to the server was 83 ms ago.

com.mysql.jdbc.Connection.createNewIO(Connection.java:2707) - createNewIO: 2707
com.mysql.jdbc.Connection.(Connection.java:1531) - : 1531
com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:266) - connect: 266
java.sql/java.sql.DriverManager.getConnection(DriverManager.java:677) - getConnection: 677
java.sql/java.sql.DriverManager.getConnection(DriverManager.java:228) - getConnection: 228
org.apache.jsp.view_jsp.connectToDatabase(view_jsp.java:545) - connectToDatabase: 545
org.apache.jsp.view_jsp._jspService(view_jsp.java:1002) - _jspService: 1002
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70) - service: 70
javax.servlet.http.HttpServlet.service(HttpServlet.java:764) - service: 764
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:466) - service: 466
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:379) - serviceJspFile: 379
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:327) - service: 327
javax.servlet.http.HttpServlet.service(HttpServlet.java:764) - service: 764
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:227) - internalDoFilter: 227
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) - doFilter: 162
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) - doFilter: 53
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) - internalDoFilter: 189
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) - doFilter: 162
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:197) - invoke: 197
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:97) - invoke: 97
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:540) - invoke: 540
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:135) - invoke: 135
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) - invoke: 92
org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:687) - invoke: 687
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:78) - invoke: 78
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:359) - service: 359
org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:399) - service: 399
org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65) - process: 65
org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:889) - process: 889
org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1735) - doRun: 1735
org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) - run: 49
org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1191) - runWorker: 1191
org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:659) - run: 659
org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) - run: 61
java.base/java.lang.Thread.run(Thread.java:829) - run: 829