Erro estranho ao conectar em session factory

Assuntos Gerais
#1

hibernate.cfg.xml

Obs: Todos os dados estão corretos

[code]<?xml version="1.0" encoding="UTF-8"?>

 <session-factory>   
 
     <property name="hibernate.connection.driver_class">com.mysql.jdbc.Driver</property>   
     <property name="hibernate.connection.url">endereco</property>   
     <property name="hibernate.connection.username">usuario</property>   
     <property name="hibernate.connection.password">senha</property>   
     <property name="hibernate.dialect">org.hibernate.dialect.MySQLDialect</property>
     <property name="hibernate.show_sql">false</property>
     <property name="hibernate.format_sql">true</property>
     <property name="hibernate.hbm2ddl.auto">update</property>

 </session-factory>

[/code]

Tenho um hibernateUtil que cria a session factory.
Resumidamente:


...
AnnotationConfiguration cfg = new AnnotationConfiguration();
cfg.configure("/hibernate.cfg.xml");
sessionFactory = cfg.buildSessionFactory();

...

e retorna a session factory

Se no hibernate.cfg.xml tem configurado um banco local funciona corretamente, porém se configuro um banco que está em um servidor a session factory é criada porém ao persistir:

[quote]Caused by: org.hibernate.exception.SQLGrammarException: Cannot open connection
at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:90)
at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:66)
at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:52)
at org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager.java:449)
at org.hibernate.jdbc.ConnectionManager.getConnection(ConnectionManager.java:167)
at org.hibernate.jdbc.AbstractBatcher.prepareQueryStatement(AbstractBatcher.java:161)
at org.hibernate.loader.Loader.prepareQueryStatement(Loader.java:1573)
at org.hibernate.loader.Loader.doQuery(Loader.java:696)
at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:259)
at org.hibernate.loader.Loader.doList(Loader.java:2228)
at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2125)
at org.hibernate.loader.Loader.list(Loader.java:2120)
at org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:401)
at org.hibernate.hql.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:361)
at org.hibernate.engine.query.HQLQueryPlan.performList(HQLQueryPlan.java:196)
at org.hibernate.impl.SessionImpl.list(SessionImpl.java:1148)
at org.hibernate.impl.QueryImpl.list(QueryImpl.java:102)
at org.hibernate.impl.AbstractQueryImpl.uniqueResult(AbstractQueryImpl.java:835)
at br.com.cauirs.sgv.model.dao.EmpresaHibernateDao.getEmpresa(EmpresaHibernateDao.java:21)
… 28 more
Caused by: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Acesso negado para o usuário ‘xxx’@’%’ ao banco de dados 'xxx’
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
at java.lang.reflect.Constructor.newInstance(Unknown Source)
at com.mysql.jdbc.Util.handleNewInstance(Util.java:406)
at com.mysql.jdbc.Util.getInstance(Util.java:381)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1030)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:956)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3491)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3423)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:910)
at com.mysql.jdbc.MysqlIO.secureAuth411(MysqlIO.java:3938)
at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1273)
at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2031)
at com.mysql.jdbc.ConnectionImpl.(ConnectionImpl.java:718)
at com.mysql.jdbc.JDBC4Connection.(JDBC4Connection.java:46)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
at java.lang.reflect.Constructor.newInstance(Unknown Source)
at com.mysql.jdbc.Util.handleNewInstance(Util.java:406)
at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:302)
at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:282)
at java.sql.DriverManager.getConnection(Unknown Source)
at java.sql.DriverManager.getConnection(Unknown Source)
at org.hibernate.connection.DriverManagerConnectionProvider.getConnection(DriverManagerConnectionProvider.java:133)
at org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager.java:446)
… 43 more[/quote]

Esse conhecia quando o usuário estivesse incorreto, porém os dados estão corretos e já testei 3 banco de dados diferentes.

Esse sistema Java está no servidor.E conecto nesse sistema por uma aplicação desktop isso pode gerar esse acesso negado?

#2