было вот это, возможно потому что mysql неправильно загрузилась
Код:
java.net.SocketException
MESSAGE: java.net.ConnectException: Connection refused
STACKTRACE:
java.net.SocketException: java.net.ConnectException: Connection refused
        at com.mysql.jdbc.StandardSocketFactory.connect(StandardSocketFactory.java:156)
        at com.mysql.jdbc.MysqlIO.<init>(MysqlIO.java:276)
        at com.mysql.jdbc.Connection.createNewIO(Connection.java:2641)
        at com.mysql.jdbc.Connection.<init>(Connection.java:1531)
        at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:266)
        at java.sql.DriverManager.getConnection(Unknown Source)
        at java.sql.DriverManager.getConnection(Unknown Source)
        at org.apache.commons.dbcp.DriverManagerConnectionFactory.createConnection(DriverManagerConnectionFactory.java:94)
        at org.apache.commons.dbcp.PoolableConnectionFactory.makeObject(PoolableConnectionFactory.java:300)
        at org.apache.commons.pool.impl.GenericObjectPool.borrowObject(GenericObjectPool.java:816)
        at bitel.billing.server.util.DefaultServerSetup.getDBConnectionFromPool(DefaultServerSetup.java:102)
        at bitel.billing.server.script.bean.event.EventProcessor.run(EventProcessor.java:95)
** END NESTED EXCEPTION **
Last packet sent to the server was 0 ms ago.
        at com.mysql.jdbc.Connection.createNewIO(Connection.java:2707)
        at com.mysql.jdbc.Connection.<init>(Connection.java:1531)
        at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:266)
        at java.sql.DriverManager.getConnection(Unknown Source)
        at java.sql.DriverManager.getConnection(Unknown Source)
        at org.apache.commons.dbcp.DriverManagerConnectionFactory.createConnection(DriverManagerConnectionFactory.java:94)
        at org.apache.commons.dbcp.PoolableConnectionFactory.makeObject(PoolableConnectionFactory.java:300)
        at org.apache.commons.pool.impl.GenericObjectPool.borrowObject(GenericObjectPool.java:816)
        at bitel.billing.server.util.DefaultServerSetup.getDBConnectionFromPool(DefaultServerSetup.java:102)
        at bitel.billing.server.script.bean.event.EventProcessor.run(EventProcessor.java:95)
java.lang.NullPointerException
        at bitel.billing.server.script.bean.event.EventProcessor.run(EventProcessor.java:100)
Returning NULL to pool!!!
а после перезапуска bgbilling всё заработало, сообщений нет