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java.sql.SQLException: No database selected	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1086)	at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:4237)	at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:4169)	at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2617)	at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2778)	at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2834)	at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:2156)	at com.mysql.jdbc.PreparedStatement.executeQuery(PreparedStatement.java:2313)	at org.hibernate.jdbc.AbstractBatcher.getResultSet(AbstractBatcher.java:208)	at org.hibernate.loader.Loader.getResultSet(Loader.java:1953)	at org.hibernate.loader.Loader.doQuery(Loader.java:802)	at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:274)	at org.hibernate.loader.Loader.doList(Loader.java:2542)	at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2276)	at org.hibernate.loader.Loader.list(Loader.java:2271)	at org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:459)	at org.hibernate.hql.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:365)	at org.hibernate.engine.query.HQLQueryPlan.performList(HQLQueryPlan.java:196)	at org.hibernate.impl.SessionImpl.list(SessionImpl.java:1268)	at org.hibernate.impl.QueryImpl.list(QueryImpl.java:102)	at org.hibernate.ejb.QueryImpl.getResultList(QueryImpl.java:246)	at com.callsystem.business.callFinder.findCustom(callFinder.java:215)	at com.callsystem.UI.searchCustomerCallsView$2.buttonClick(searchCustomerCallsView.java:99)	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:597)	at com.vaadin.event.ListenerMethod.receiveEvent(ListenerMethod.java:508)	at com.vaadin.event.EventRouter.fireEvent(EventRouter.java:198)	at com.vaadin.event.EventRouter.fireEvent(EventRouter.java:161)	at com.vaadin.server.AbstractClientConnector.fireEvent(AbstractClientConnector.java:1008)	at com.vaadin.ui.Button.fireClick(Button.java:377)	at com.vaadin.ui.Button$1.click(Button.java:54)	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:597)	at com.vaadin.server.ServerRpcManager.applyInvocation(ServerRpcManager.java:158)	at com.vaadin.server.ServerRpcManager.applyInvocation(ServerRpcManager.java:118)	at com.vaadin.server.communication.ServerRpcHandler.handleInvocations(ServerRpcHandler.java:408)	at com.vaadin.server.communication.ServerRpcHandler.handleRpc(ServerRpcHandler.java:273)	at com.vaadin.server.communication.PushHandler$2.run(PushHandler.java:149)	at com.vaadin.server.communication.PushHandler.callWithUi(PushHandler.java:243)	at com.vaadin.server.communication.PushHandler.onMessage(PushHandler.java:503)	at com.vaadin.server.communication.PushAtmosphereHandler.onMessage(PushAtmosphereHandler.java:88)	at com.vaadin.server.communication.PushAtmosphereHandler.onRequest(PushAtmosphereHandler.java:78)	at org.atmosphere.cpr.AsynchronousProcessor.action(AsynchronousProcessor.java:199)	at org.atmosphere.cpr.AsynchronousProcessor.suspended(AsynchronousProcessor.java:107)	at org.atmosphere.container.TomcatWebSocketUtil.doService(TomcatWebSocketUtil.java:154)	at org.atmosphere.container.Tomcat7Servlet30SupportWithWebSocket.service(Tomcat7Servlet30SupportWithWebSocket.java:62)	at org.atmosphere.cpr.AtmosphereFramework.doCometSupport(AtmosphereFramework.java:2075)	at org.atmosphere.websocket.DefaultWebSocketProcessor.dispatch(DefaultWebSocketProcessor.java:571)	at org.atmosphere.websocket.DefaultWebSocketProcessor$3.run(DefaultWebSocketProcessor.java:333)	at org.atmosphere.util.VoidExecutorService.execute(VoidExecutorService.java:101)	at org.atmosphere.websocket.DefaultWebSocketProcessor.dispatch(DefaultWebSocketProcessor.java:328)	at org.atmosphere.websocket.DefaultWebSocketProcessor.invokeWebSocketProtocol(DefaultWebSocketProcessor.java:425)	at org.atmosphere.websocket.DefaultWebSocketProcessor.dispatchReader(DefaultWebSocketProcessor.java:795)	at org.atmosphere.websocket.DefaultWebSocketProcessor.invokeWebSocketProtocol(DefaultWebSocketProcessor.java:527)	at org.atmosphere.container.TomcatWebSocketHandler.onTextData(TomcatWebSocketHandler.java:104)	at org.apache.catalina.websocket.StreamInbound.doOnTextData(StreamInbound.java:190)	at org.apache.catalina.websocket.StreamInbound.onData(StreamInbound.java:138)	at org.apache.coyote.http11.upgrade.UpgradeProcessor.upgradeDispatch(UpgradeProcessor.java:88)	at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:599)	at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:310)	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:895)	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:918)	at java.lang.Thread.run(Thread.java:662)