sorry I have posted twice, please ignore this message
On Aug 14, 10:36 am, myopc <[email protected]> wrote:
> hi, all
> I found a strange charset encoding bug of dalvik VM. please see the
> following code:
>
> public class CharsetMain extends Activity {
> private final static String LOG_TAG = "zzw";
>
> final String s123="1我2"; // at least one none-ascii
> final String sabc="abcdef";
>
> �...@override
> public void onCreate(Bundle savedInstanceState) {
> super.onCreate(savedInstanceState);
> Log.d(LOG_TAG, sabc); // ok
>
> // set charset input to sabc
> sabc.getBytes();
>
> // fill charset input with s123
> Charset charset = java.nio.charset.Charset.forName("UTF-8");
> charset.encode(s123);
>
> Log.d(LOG_TAG, sabc); // bad
> Log.d(LOG_TAG, "abcdef"); // bad
> finish();
> }
>
> }
>
> stirng s123 contains a Chinese character, after run, string sabc will
> be filled with s123, the last 2 log will give bad result.
>
> I found the error is at com.ibm.icu4jni.charset.CharsetEncoderICU,
> method getArray (line 314), here it directly save the internal buffer
> of a input string or copy input string to its saved buffer, if 2
> consequent calls are just the 2 conditions, the later will copy the
> string to the first saved buffer.
>
> I am not sure it's a bug, but it causes the Email program runs
> abnormally with Chinese local.
>
> your comments are greatly appreciated, thanks!
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