Вот столкнулся с непонятной ошибкой, гейм и логин сервер все время пишет ошибки связанные с коннектом к бд (я так думаю). Проблему немогу решить около недели, чего только неперепробывал. Надеюсь тут мне кто поможет...
com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link fai
lure
The last packet successfully received from the server was 214Tа875 milliseconds
ago. The last packet sent successfully to the server was 0 milliseconds ago.
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Sou
rce)
at java.lang.reflect.Constructor.newInstance(Unknown Source)
at com.mysql.jdbc.Util.handleNewInstance(Util.java:407)
at com.mysql.jdbc.SQLError.createCommunicationsException(SQLError.java:1
116)
at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:3092)
at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:2978)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3526)
at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1989)
at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2150)
at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2626)
at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.ja
va:2119)
at com.mysql.jdbc.PreparedStatement.executeQuery(PreparedStatement.java:
2281)
at com.mchange.v2.c3p0.impl.NewProxyPreparedStatement.executeQuery(NewPr
oxyPreparedStatement.java:76)
at com.l2jfrozen.loginserver.LoginController.loginValid(LoginController.
java:669)
at com.l2jfrozen.loginserver.LoginController.tryAuthLogin(LoginControlle
r.java:300)
at com.l2jfrozen.loginserver.network.clientpackets.RequestAuthLogin.run(
RequestAuthLogin.java:124)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source
)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
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:2539)
at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:2989)
... 14 more
Could not check password:com.mysql.jdbc.exceptions.jdbc4.CommunicationsException
: Communications link failure
The last packet successfully received from the server was 214Tа875 milliseconds
ago. The last packet sent successfully to the server was 0 milliseconds ago.
Problem with checked-in Statement, discarding.
com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: No operati
ons allowed after statement closed.
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Sou
rce)
at java.lang.reflect.Constructor.newInstance(Unknown Source)
at com.mysql.jdbc.Util.handleNewInstance(Util.java:407)
at com.mysql.jdbc.Util.getInstance(Util.java:382)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1013)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:987)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:982)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:927)
at com.mysql.jdbc.StatementImpl.checkClosed(StatementImpl.java:402)
at com.mysql.jdbc.PreparedStatement.clearParameters(PreparedStatement.ja
va:1138)
at com.mchange.v2.c3p0.stmt.GooGooStatementCache.refreshStatement(GooGoo
StatementCache.java:604)
at com.mchange.v2.c3p0.stmt.GooGooStatementCache.checkinStatement(GooGoo
StatementCache.java:236)
at com.mchange.v2.c3p0.stmt.GooGooStatementCache.checkinAll(GooGooStatem
entCache.java:288)
at com.mchange.v2.c3p0.impl.NewPooledConnection.checkinAllCachedStatemen
ts(NewPooledConnection.java:664)
at com.mchange.v2.c3p0.impl.NewPooledConnection.markClosedProxyConnectio
n(NewPooledConnection.java:347)
at com.mchange.v2.c3p0.impl.NewProxyConnection.close(NewProxyConnection.
java:1246)
at com.l2jfrozen.util.CloseUtil.close(CloseUtil.java:36)
at com.l2jfrozen.loginserver.LoginController.loginValid(LoginController.
java:774)
at com.l2jfrozen.loginserver.LoginController.tryAuthLogin(LoginControlle
r.java:300)
at com.l2jfrozen.loginserver.network.clientpackets.RequestAuthLogin.run(
RequestAuthLogin.java:124)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source
)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
java.sql.SQLException: An SQLException was provoked by the following failure: ja
va.util.ConcurrentModificationException
at com.mchange.v2.sql.SqlUtils.toSQLException(SqlUtils.java:106)
at com.mchange.v2.sql.SqlUtils.toSQLException(SqlUtils.java:65)
at com.mchange.v2.sql.SqlUtils.toSQLException(SqlUtils.java:62)
at com.mchange.v2.c3p0.impl.NewProxyConnection.close(NewProxyConnection.
java:1271)
at com.l2jfrozen.util.CloseUtil.close(CloseUtil.java:36)
at com.l2jfrozen.loginserver.LoginController.loginValid(LoginController.
java:774)
at com.l2jfrozen.loginserver.LoginController.tryAuthLogin(LoginControlle
r.java:300)
at com.l2jfrozen.loginserver.network.clientpackets.RequestAuthLogin.run(
RequestAuthLogin.java:124)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source
)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Caused by: java.util.ConcurrentModificationException
at java.util.HashMap$HashIterator.nextEntry(Unknown Source)
at java.util.HashMap$KeyIterator.next(Unknown Source)
at com.mchange.v2.c3p0.stmt.GooGooStatementCache.checkinAll(GooGooStatem
entCache.java:286)
at com.mchange.v2.c3p0.impl.NewPooledConnection.checkinAllCachedStatemen
ts(NewPooledConnection.java:664)
at com.mchange.v2.c3p0.impl.NewPooledConnection.markClosedProxyConnectio
n(NewPooledConnection.java:347)
at com.mchange.v2.c3p0.impl.NewProxyConnection.close(NewProxyConnection.
java:1246)
... 7 more
An SQLException was provoked by the following failure: java.util.ConcurrentModif
icationException
