Github user myui commented on the issue:
https://github.com/apache/incubator-hivemall/pull/82
@helenahm thank you for the bug report.
@takuti
`String.getBytes()` and `new String(byte[])` should be avoided to avoid
encoding/decoding problem (UTF16 to . See the JDK implementation.
Better to replace the current code using `String.charAt(int)` and `new
String(char[])`. See `hivemall.utils.IOUtils`.
```
final int len = s.length();
out.writeInt(len);
for (int i = 0; i < len; i++) {
int v = s.charAt(i);
out.writeChar(v);
}
final char[] ch = new char[len];
for (int i = 0; i < len; i++) {
ch[i] = in.readChar();
}
return new String(ch);
```
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