Cobar init error

Hi, all
Cobar-server-1.2.7 can not initialize successfully, and error log is as following:

17:26:54,044 INFO Cobar is ready to startup ...
17:26:54,044 INFO Startup processors ...
17:26:54,069 INFO Startup connector ...
17:26:54,070 INFO Initialize dataNodes ...
17:26:54,116 WARN dnTest1:0 init error.
java.util.concurrent.ExecutionException: java.io.UnsupportedEncodingException: maccecias
at java.util.concurrent.FutureTask.report(FutureTask.java:122)
at java.util.concurrent.FutureTask.get(FutureTask.java:202)
at com.alibaba.cobar.mysql.bio.MySQLChannel.connect(MySQLChannel.java:185)
at com.alibaba.cobar.mysql.MySQLDataSource.getChannel(MySQLDataSource.java:159)
at com.alibaba.cobar.mysql.MySQLDataNode.initSource(MySQLDataNode.java:357)
at com.alibaba.cobar.mysql.MySQLDataNode.init(MySQLDataNode.java:78)
at com.alibaba.cobar.CobarServer.startup(CobarServer.java:124)
at com.alibaba.cobar.CobarStartup.main(CobarStartup.java:36)
Caused by: java.io.UnsupportedEncodingException: maccecias
at java.lang.StringCoding.encode(StringCoding.java:341)
at java.lang.String.getBytes(String.java:916)
at com.alibaba.cobar.mysql.bio.MySQLChannel.sendAuth411(MySQLChannel.java:372)
at com.alibaba.cobar.mysql.bio.MySQLChannel.handshake(MySQLChannel.java:338)
at com.alibaba.cobar.mysql.bio.MySQLChannel.access$000(MySQLChannel.java:66)
at com.alibaba.cobar.mysql.bio.MySQLChannel$1.call(MySQLChannel.java:180)
at com.alibaba.cobar.mysql.bio.MySQLChannel$1.call(MySQLChannel.java:176)
at java.util.concurrent.FutureTask.run(FutureTask.java:262)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:745)
17:26:54,119 ERROR #!Cobar#dnTest1 init failure

Test environment:
os: linux
jdk: jdk7
mysql: 5.6

Thanks & Best Regards!

Start with com.alibaba.cobar.mysql.bio.MySQLChannel at sendAuth411, handshake, and connect, then review the startup path through MySQLDataNode.initSource. Reproduce the failure in the reported Linux, JDK 7, and MySQL 5.6 environment; done means Cobar initializes the data node without the UnsupportedEncodingException.

Written by the indexing model from the issue text.