Name: wm7046 Date: 04/13/2004


When converting a byte array (contains an invalid byte sequence for EUC_CN) to
a String using charset "EUC_CN", the result is different before and after
calling new String(bytes, "ISO-8859-1"), e.g:

String s1 = new String(bytes, "EUC_CN");
String s2 = new String(bytes, "ISO-8859-1");
String s3 = new String(bytes, "EUC_CN");

we see s1 is different from s3.
The test case:

public class TestString
{
  public static void main(String[] args)
  {
    byte[] bytes = {-122,72,-122,-9};
    try {
      String str = null;
      int hash = 0;
      String outstr = null;
//-------- Before iso-8859
    str = new String(bytes,"EUC_CN");
      hash = str.hashCode();
      outstr = "";
      for (int i = 0; i < str.length(); i++)
        outstr += " " + (long) str.charAt(i);
      System.out.println("String-(EUC_CN)" + outstr);
      System.out.println("hash:" + hash);
//-------------iso-8859
      str = new String(bytes,"ISO-8859-1");
      hash = str.hashCode();
      outstr = "";
      for (int i = 0; i < str.length(); i++)
        outstr += " " + (long) str.charAt(i);
      System.out.println("String-ISO-8859-1:" + outstr);
      System.out.println("hash:" + hash);
//-------------After iso-8859
    str = new String(bytes,"EUC_CN");
      hash = str.hashCode();
      outstr = "";
      for (int i = 0; i < str.length(); i++)
        outstr += " " + (long) str.charAt(i);
      System.out.println("String-(EUC_CN)" + outstr);
      System.out.println("hash:" + hash);
    }catch (Exception e)
    {
      e.printStackTrace();
    }
  }
}
(Incident Review ID: 244585)
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