com.pogoda_ml.exception.ApplicationException: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure<br/><br/>The last packet successfully received from the server was 0 milliseconds ago.  The last packet sent successfully to the server was 0 milliseconds ago.<br/>	at com.pogoda_ml.dao.CountryDAO.getCountry(CountryDAO.java:166)<br/>	at com.pogoda_ml.servlet.ControllerServlet.doGet(ControllerServlet.java:162)<br/>	at javax.servlet.http.HttpServlet.service(HttpServlet.java:635)<br/>	at javax.servlet.http.HttpServlet.service(HttpServlet.java:742)<br/>	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)<br/>	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)<br/>	at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)<br/>	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)<br/>	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)<br/>	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:199)<br/>	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)<br/>	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:475)<br/>	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140)<br/>	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:80)<br/>	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87)<br/>	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342)<br/>	at org.apache.coyote.ajp.AjpProcessor.service(AjpProcessor.java:403)<br/>	at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)<br/>	at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:796)<br/>	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1368)<br/>	at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)<br/>	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)<br/>	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)<br/>	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)<br/>	at java.lang.Thread.run(Thread.java:748)<br/>Caused by: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure<br/><br/>The last packet successfully received from the server was 0 milliseconds ago.  The last packet sent successfully to the server was 0 milliseconds ago.<br/>	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)<br/>	at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)<br/>	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)<br/>	at java.lang.reflect.Constructor.newInstance(Constructor.java:423)<br/>	at com.mysql.jdbc.Util.handleNewInstance(Util.java:425)<br/>	at com.mysql.jdbc.SQLError.createCommunicationsException(SQLError.java:989)<br/>	at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:3559)<br/>	at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:3459)<br/>	at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3900)<br/>	at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2527)<br/>	at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2680)<br/>	at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2487)<br/>	at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:1858)<br/>	at com.mysql.jdbc.PreparedStatement.executeQuery(PreparedStatement.java:1966)<br/>	at com.zaxxer.hikari.pool.ProxyPreparedStatement.executeQuery(ProxyPreparedStatement.java:52)<br/>	at com.zaxxer.hikari.pool.HikariProxyPreparedStatement.executeQuery(HikariProxyPreparedStatement.java)<br/>	at com.pogoda_ml.dao.CountryDAO.getCountry(CountryDAO.java:151)<br/>	... 24 more<br/>Caused by: java.io.EOFException: Can not read response from server. Expected to read 4 bytes, read 0 bytes before connection was unexpectedly lost.<br/>	at com.mysql.jdbc.MysqlIO.readFully(MysqlIO.java:3011)<br/>	at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:3469)<br/>	... 34 more<br/>