There is sample code (below). Result of execution is different for jdk@11 and jdk@17. Looks like white characters are different after formatting BigDecimal(1000) to String. Finally result looks the same - BUT, it is not the same String (compare bytes and Base64.encoded).
import java.math.BigDecimal;
import java.text.NumberFormat;
import java.util.Base64;
import java.util.Locale;
public class NumberFormatTest {
public static void main(String...args) {
Locale locale = new Locale("fr", "FR");
NumberFormat numberFormat = NumberFormat.getCurrencyInstance(locale);
BigDecimal value = BigDecimal.valueOf(1000);
String result = numberFormat.format(value); // <-- HERE!
System.out.println(result);
byte[] bytes = result.getBytes();
for( int i=0; i<bytes.length; i++) {
System.out.print(bytes[i]+", ");
}
System.out.println();
System.out.println(Base64.getEncoder().encodeToString(bytes));
}
}
result for jdk@11 is different than for jdk@17
result for jdk@11:
1 000,00 €
49, -62, -96, 48, 48, 48, 44, 48, 48, -62, -96, -30, -126, -84,
McKgMDAwLDAwwqDigqw=
result for jdk@17:
1 000,00 €
49, -30, -128, -81, 48, 48, 48, 44, 48, 48, -62, -96, -30, -126, -84,
MeKArzAwMCwwMMKg4oKs
jdk@11:
openjdk version "11.0.12" 2021-07-20
OpenJDK Runtime Environment Homebrew (build 11.0.12+0)
OpenJDK 64-Bit Server VM Homebrew (build 11.0.12+0, mixed mode)
jdk@17:
openjdk version "17.0.1" 2021-10-19
OpenJDK Runtime Environment Homebrew (build 17.0.1+1)
OpenJDK 64-Bit Server VM Homebrew (build 17.0.1+1, mixed mode, sharing)
System:
MacOS
Catalina 10.15.7
Is it expected behaviour?
