在linux上用jmeter进行MySQL测试的时候出现下面的错误

2013/10/18 19:02:29 WARN  - jmeter.protocol.jdbc.config.DataSourceElement: Could not return Connection java.sql.SQLException: Unsupported character encoding 'GBK'.
        at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1055)
        at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:956)
        at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:926)
        at com.mysql.jdbc.StringUtils.getBytes(StringUtils.java:540)
        at com.mysql.jdbc.StringUtils.getBytes(StringUtils.java:684)
        at com.mysql.jdbc.Buffer.writeStringNoNull(Buffer.java:663)
        at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2055)
        at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2642)
        at com.mysql.jdbc.ConnectionImpl.configureClientCharacterSet(ConnectionImpl.java:1818)
        at com.mysql.jdbc.ConnectionImpl.initializePropsFromServer(ConnectionImpl.java:3546)
        at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2156)
        at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:773)
        at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:46)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)
        at java.lang.reflect.Constructor.newInstance(Constructor.java:513)
        at com.mysql.jdbc.Util.handleNewInstance(Util.java:406)
        at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:352)
        at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java:282)
        at java.sql.DriverManager.getConnection(DriverManager.java:582)
        at java.sql.DriverManager.getConnection(DriverManager.java:185)
        at org.apache.avalon.excalibur.datasource.JdbcConnectionFactory.newInstance(JdbcConnectionFactory.java:185)
        at org.apache.avalon.excalibur.pool.ResourceLimitingPool.newPoolable(ResourceLimitingPool.java:672)
        at org.apache.avalon.excalibur.pool.ValidatedResourceLimitingPool.newPoolable(ValidatedResourceLimitingPool.java:178)
        at org.apache.avalon.excalibur.datasource.ResourceLimitingJdbcConnectionPool.newPoolable(ResourceLimitingJdbcConnectionPool.java:123)
        at org.apache.avalon.excalibur.pool.ResourceLimitingPool.get(ResourceLimitingPool.java:402)
        at org.apache.avalon.excalibur.pool.ValidatedResourceLimitingPool.get(ValidatedResourceLimitingPool.java:130)
        at org.apache.avalon.excalibur.datasource.ResourceLimitingJdbcDataSource.getConnection(ResourceLimitingJdbcDataSource.java:222)
        at org.apache.jmeter.protocol.jdbc.config.DataSourceElement$DataSourceComponentImpl.getConnection(DataSourceElement.java:286)
        at org.apache.jmeter.protocol.jdbc.config.DataSourceElement.getConnection(DataSourceElement.java:146)
        at org.apache.jmeter.protocol.jdbc.sampler.JDBCSampler.sample(JDBCSampler.java:85)
        at org.apache.jmeter.threads.JMeterThread.process_sampler(JMeterThread.java:428)
        at org.apache.jmeter.threads.JMeterThread.run(JMeterThread.java:256)
        at java.lang.Thread.run(Thread.java:619)
jmeter 测试 mysql linux character

补充：Java ,  非技术区