server 07-13/18:25:44 ERROR [main] DefaultServerSetup - 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.
com.mysql.jdbc.exceptions.jdbc4.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 sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
   at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
   at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
   at java.lang.reflect.Constructor.newInstance(Constructor.java:525)
   at com.mysql.jdbc.Util.handleNewInstance(Util.java:407)
   at com.mysql.jdbc.SQLError.createCommunicationsException(SQLError.java:1116)
   at com.mysql.jdbc.MysqlIO.readPacket(MysqlIO.java:687)
   at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1090)
   at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2338)
   at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2371)
   at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2163)
   at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:794)
   at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:47)
   at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
   at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
   at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
   at java.lang.reflect.Constructor.newInstance(Constructor.java:525)
   at com.mysql.jdbc.Util.handleNewInstance(Util.java:407)
   at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:378)
   at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:305)
   at java.sql.DriverManager.getConnection(DriverManager.java:579)
   at java.sql.DriverManager.getConnection(DriverManager.java:221)
   at org.apache.commons.dbcp.DriverManagerConnectionFactory.createConnection(DriverManagerConnectionFactory.java:65)
   at org.apache.commons.dbcp.PoolableConnectionFactory.makeObject(PoolableConnectionFactory.java:294)
   at org.apache.commons.pool.impl.GenericObjectPool.borrowObject(GenericObjectPool.java:974)
   at ru.bitel.bgbilling.server.util.DefaultServerSetup.getDBConnectionFromPool(DefaultServerSetup.java:574)
   at ru.bitel.bgbilling.server.util.Setup.init(Setup.java:47)
   at ru.bitel.bgbilling.server.util.Setup.<init>(Setup.java:39)
   at bitel.billing.server.Server.initSetup(Server.java:261)
   at bitel.billing.server.Server.<init>(Server.java:333)
   at bitel.billing.server.Server.main(Server.java:246)
   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
   at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
   at java.lang.reflect.Method.invoke(Method.java:601)
   at ru.bitel.common.bootstrap.Boot.boot(Boot.java:77)
   at ru.bitel.common.bootstrap.Boot.main(Boot.java:125)
Caused by: java.io.EOFException: Can not read response from server. Expected to read 4 bytes, read 0 bytes before connection was unexpectedly lost.
   at com.mysql.jdbc.MysqlIO.readFully(MysqlIO.java:2529)
   at com.mysql.jdbc.MysqlIO.readPacket(MysqlIO.java:611)
   ... 30 more
server 07-13/18:25:44 ERROR [main] LoggingPrintStream - java.lang.NullPointerException
server 07-13/18:25:44 ERROR [main] LoggingPrintStream -    at ru.bitel.bgbilling.server.util.ModuleSetup.loadModuleSetup(ModuleSetup.java:47)
server 07-13/18:25:44 ERROR [main] LoggingPrintStream -    at ru.bitel.bgbilling.server.util.Setup.init(Setup.java:50)
server 07-13/18:25:44 ERROR [main] LoggingPrintStream -    at ru.bitel.bgbilling.server.util.Setup.<init>(Setup.java:39)
server 07-13/18:25:44 ERROR [main] LoggingPrintStream -    at bitel.billing.server.Server.initSetup(Server.java:261)
server 07-13/18:25:44 ERROR [main] LoggingPrintStream -    at bitel.billing.server.Server.<init>(Server.java:333)
server 07-13/18:25:44 ERROR [main] LoggingPrintStream -    at bitel.billing.server.Server.main(Server.java:246)
server 07-13/18:25:44 ERROR [main] LoggingPrintStream -    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
server 07-13/18:25:44 ERROR [main] LoggingPrintStream -    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
server 07-13/18:25:44 ERROR [main] LoggingPrintStream -    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
server 07-13/18:25:44 ERROR [main] LoggingPrintStream -    at java.lang.reflect.Method.invoke(Method.java:601)
server 07-13/18:25:44 ERROR [main] LoggingPrintStream -    at ru.bitel.common.bootstrap.Boot.boot(Boot.java:77)
server 07-13/18:25:44 ERROR [main] LoggingPrintStream -    at ru.bitel.common.bootstrap.Boot.main(Boot.java:125)
server 07-13/18:25:44 ERROR [main] LoggingPrintStream - java.lang.NullPointerException
server 07-13/18:25:44 ERROR [main] LoggingPrintStream -    at bitel.billing.server.admin.bean.UserManager.getUsersMap(UserManager.java:96)
server 07-13/18:25:44 ERROR [main] LoggingPrintStream -    at ru.bitel.bgbilling.server.util.UserMap.initUserMap(UserMap.java:43)
server 07-13/18:25:44 ERROR [main] LoggingPrintStream -    at ru.bitel.bgbilling.server.util.UserMap.initUserMap(UserMap.java:29)
server 07-13/18:25:44 ERROR [main] LoggingPrintStream -    at bitel.billing.server.Server.initSetup(Server.java:264)
server 07-13/18:25:44 ERROR [main] LoggingPrintStream -    at bitel.billing.server.Server.<init>(Server.java:333)
server 07-13/18:25:44 ERROR [main] LoggingPrintStream -    at bitel.billing.server.Server.main(Server.java:246)
server 07-13/18:25:44 ERROR [main] LoggingPrintStream -    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
server 07-13/18:25:44 ERROR [main] LoggingPrintStream -    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
server 07-13/18:25:44 ERROR [main] LoggingPrintStream -    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
server 07-13/18:25:44 ERROR [main] LoggingPrintStream -    at java.lang.reflect.Method.invoke(Method.java:601)
server 07-13/18:25:44 ERROR [main] LoggingPrintStream -    at ru.bitel.common.bootstrap.Boot.boot(Boot.java:77)
server 07-13/18:25:44 ERROR [main] LoggingPrintStream -    at ru.bitel.common.bootstrap.Boot.main(Boot.java:125)
server 07-13/18:25:44 ERROR [main] LoggingPrintStream - Exception in thread "main"
server 07-13/18:25:44 ERROR [main] LoggingPrintStream - java.lang.reflect.InvocationTargetException
server 07-13/18:25:44 ERROR [main] LoggingPrintStream -    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
server 07-13/18:25:44 ERROR [main] LoggingPrintStream -    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
server 07-13/18:25:44 ERROR [main] LoggingPrintStream -    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
server 07-13/18:25:44 ERROR [main] LoggingPrintStream -    at java.lang.reflect.Method.invoke(Method.java:601)
server 07-13/18:25:44 ERROR [main] LoggingPrintStream -    at ru.bitel.common.bootstrap.Boot.boot(Boot.java:77)
server 07-13/18:25:44 ERROR [main] LoggingPrintStream -    at ru.bitel.common.bootstrap.Boot.main(Boot.java:125)
server 07-13/18:25:44 ERROR [main] LoggingPrintStream - Caused by: java.lang.NullPointerException
server 07-13/18:25:44 ERROR [main] LoggingPrintStream -    at bitel.billing.server.Update.<init>(Update.java:19)
server 07-13/18:25:44 ERROR [main] LoggingPrintStream -    at bitel.billing.server.Server.<init>(Server.java:335)
server 07-13/18:25:44 ERROR [main] LoggingPrintStream -    at bitel.billing.server.Server.main(Server.java:246)
server 07-13/18:25:44 ERROR [main] LoggingPrintStream -    ... 6 more