JDK7 introduced the class ``++java.nio.charset.StandardCharsets++``. It provides constants for all charsets that are guaranteed to be available on every implementation of the Java platform.
* ISO_8859_1
* US_ASCII
* UTF_16
* UTF_16BE
* UTF_16LE
* UTF_8
These constants should be preferred to:
* the use of a String such as "UTF-8" which has the drawback of requiring the ``++catch++``/``++throw++`` of an ``++UnsupportedEncodingException++`` that will never actually happen
* the use of Guava’s ``++Charsets++`` class, which has been obsolete since JDK7
== Noncompliant Code Example
----
try {
byte[] bytes = string.getBytes("UTF-8"); // Noncompliant; use a String instead of StandardCharsets.UTF_8
} catch (UnsupportedEncodingException e) {
throw new AssertionError(e);
}
// ...
byte[] bytes = string.getBytes(Charsets.UTF_8); // Noncompliant; Guava way obsolete since JDK7
