title: sybase jdbc connection issue
body: <p>i am just a beginner in sybase. am trying make a simple jdbc connection to my sybase server. using below code.</p>
  
  <p>i have jcon3.jar in my classpath too.</p>
  
  <pre><code>try {
          Class.forName("com.sybase.jdbc3.jdbc.SybDataSource");
          System.out.println("before connection");
          Connection conn = DriverManager.getConnection("jdbc:sybase:Tds:localhost:1326/db","butt","clear");
          System.out.println("after connection");
      } catch (Exception e) {
          e.printStackTrace();
      }
  </code></pre>
  
  <p>i am not able achieve what i expect. below is the error i am getting.</p>
  
  <pre><code>inside try
  before connection
  java.sql.SQLException: JZ00L: Login failed.  Examine the SQLWarnings chained to this exception for the reason(s).
      at com.sybase.jdbc3.jdbc.ErrorMessage.raiseError(Unknown Source)
      at com.sybase.jdbc3.tds.Tds.for(Unknown Source)
      at com.sybase.jdbc3.tds.Tds.a(Unknown Source)
      at com.sybase.jdbc3.tds.Tds.login(Unknown Source)
      at com.sybase.jdbc3.jdbc.SybConnection.a(Unknown Source)
      at com.sybase.jdbc3.jdbc.SybConnection.a(Unknown Source)
      at com.sybase.jdbc3.jdbc.SybConnection.&lt;init&gt;(Unknown Source)
      at com.sybase.jdbc3.jdbc.SybConnection.&lt;init&gt;(Unknown Source)
      at com.sybase.jdbc3.jdbc.SybDriver.connect(Unknown Source)
      at java.sql.DriverManager.getConnection(Unknown Source)
      at java.sql.DriverManager.getConnection(Unknown Source)
      at com.risk.JDBC.TestJdbc.main(TestJdbc.java:19)
  SQL Error : State=[JZ00L] JZ00L: Login failed.  Examine the SQLWarnings chained to this exception for the reason(s).
  SQL Error : State=[JZ0IB] JZ0IB: The server's default charset of roman8 does not map to an encoding that is available in the client Java environment. Because jConnect will not be able to do client-side conversion, the connection is unusable and is being closed. Try using a later Java version, or try including your Java installation's i18n.jar or charsets.jar file in the classpath.
  SQL Error : State=[JZ006] JZ006: Caught IOException: java.io.CharConversionException: java.io.UnsupportedEncodingException: hp-roman8
  </code></pre>