Caused by: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Access denied for user ''@'localhost' to database 'hibernate'  at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)  at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)  at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)  at java.lang.reflect.Constructor.newInstance(Constructor.java:423)  at com.mysql.jdbc.Util.handleNewInstance(Util.java:377)  at com.mysql.jdbc.Util.getInstance(Util.java:360)  at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:978)  at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3887)  at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3823)  at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:870)  at com.mysql.jdbc.MysqlIO.proceedHandshakeWithPluggableAuthentication(MysqlIO.java:1659)  at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1206)  at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2234)  at com.mysql.jdbc.ConnectionImpl.connectOneTryOnly(ConnectionImpl.java:2265)  at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2064)  at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:790)  at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:44)  at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)  at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)  at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)  at java.lang.reflect.Constructor.newInstance(Constructor.java:423)  at com.mysql.jdbc.Util.handleNewInstance(Util.java:377)  at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:395)  at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:325)  at bitronix.tm.resource.jdbc.lrc.LrcXADataSource.getXAConnection(LrcXADataSource.java:104)  ... 33 more

ds.setClassName("bitronix.tm.resource.jdbc.lrc.LrcXADataSource");          ds.getDriverProperties().put(              "url",              connectionURL != null ? connectionURL                  : "jdbc:mysql://localhost:3306/hibernate?useUnicode=true&characterEncoding=UTF-8&zeroDateTimeBehavior=convertToNull"          );          Properties dp=ds.getDriverProperties();          dp.put("driverClassName", "com.mysql.jdbc.Driver");          ds.setDriverProperties(dp);

...dp.put("user","root");dp.put("password","");...ds.setDriverProperties(dp);