byte array to string conversion

Thu Sep 11 16:36:00 GMT 2003

In the Mysql jdbc driver I discovered a byte[] to string conversion 
utility that does not work with GCJ.
I made a little test program, maybe someone can tell what's going on.
With Sun jdk 1.4.1 on linux it outputs "toAsciiString -> Test String"
With GCJ 3.3 on linux it outputs "toAsciiString -> "
 >>>>>>>>>>>>>>>>>>>
public class TestStringConversion
{
 private static final int BYTE_RANGE = (1 + Byte.MAX_VALUE) - 
Byte.MIN_VALUE;
 private static byte[] allBytes = new byte[BYTE_RANGE];
 private static char[] byteToChars = new char[BYTE_RANGE];
 static {
 for (int i = Byte.MIN_VALUE; i <= Byte.MAX_VALUE; i++) {
 allBytes[i - Byte.MIN_VALUE] = (byte) i;
 }
 String allBytesString = new String(allBytes, 0,
 Byte.MAX_VALUE - Byte.MIN_VALUE);
 int allBytesStringLen = allBytesString.length();
 for (int i = 0;
 (i < (Byte.MAX_VALUE - Byte.MIN_VALUE))
 && (i < allBytesStringLen); i++) {
 byteToChars[i] = allBytesString.charAt(i);
 }
 }
 
 public TestStringConversion()
 {
 }
 
 /**
 * String conversion as found in com.mysql.jdbc.StringUtils
 */
 public static String toAsciiString(byte[] buffer, int startPos, int 
length)
 {
 char[] charArray = new char[length];
 int readpoint = startPos;
 for (int i = 0; i < length; i++)
 {
 charArray[i] = byteToChars[(int) buffer[readpoint] - 
Byte.MIN_VALUE];
 readpoint++;
 }
 return new String(charArray);
 }
 
 public static void main(String[] args)
 { 
 String test_str = "Test String"; 
 byte[] test_buf = test_str.getBytes();
 System.out.println("toAsciiString -> "+toAsciiString(test_buf, 0, 
test_buf.length));
 }
 
}
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/Lars Andersen