neilcsmith-net commented on code in PR #4396:
URL: https://github.com/apache/netbeans/pull/4396#discussion_r923549604
##########
java/maven/src/org/netbeans/modules/maven/execute/CommandLineOutputHandler.java:
##########
@@ -827,30 +827,45 @@ public ExecutionEventObject.Tree getExecutionTree() {
}
}
-
- private static Charset getNativeCharset() {
+
+ /**
+ * Returns the preferred Charset that is obtained by checking the
following system properties:
+ * stdout.encoding, sun.stdout.encoding, native.encoding,
Charset.defaultCharset()
+ * @see
org.netbeans.api.extexecution.base.BaseExecutionService#getInputOutputEncoding
+ * @return Charset
+ */
+ private static Charset getPreferredCharset() {
// The CommandLineOutputHandler used the default charset to convert
// output from command line invocations to strings. That encoding is
// derived from the system file.encoding. From JDK 18 onwards its
// default value changed to UTF-8.
- // JDK 18+ exposes the native encoding as the new system property
+ // JDK 17+ exposes the native encoding as the new system property
// native.encoding, prior versions don't have that property and will
// report NULL for it.
- // The algorithm is simple: If native.encoding is set, it will be used
- // else the old default will be queried via Charset#defaultCharset.
- String nativeEncoding = System.getProperty("native.encoding");
- Charset nativeCharset = null;
- if (nativeEncoding != null) {
+ // To account for the behavior of JEP400 the following order is used
to determine the encoding:
+ // stdout.encoding, sun.stdout.encoding, native.encoding,
Charset.defaultCharset()
+ String[] encodingSystemProperties = new String[]{"stdout.encoding,
sun.stdout.encoding, native.encoding"};
Review Comment:
This is one String not three!
##########
ide/extexecution.base/src/org/netbeans/api/extexecution/base/BaseExecutionService.java:
##########
@@ -140,6 +140,45 @@ public static BaseExecutionService newService(@NonNull
Callable<? extends Proces
return new BaseExecutionService(processCreator, descriptor);
}
+ /**
+ * Infers the output encoding from the relevant system properties, if
those should all be <code>null</code>
+ * then this will fallback to <code>Charset.defaultCharset()</code>
+ *
+ * Since JDK 18 and JEP400 Console.charset() is used for the console's
encoding instead of <code>Charset.defaultCharset()</code>.
+ * Console.charset() is exposed via stdout.encoding/sun.stdout.encoding.
+ * If ran with JDK<=16 stdout.encoding and native.encoding should be null
and the old default of <code>Charset.defaultCharset()</code> will be used to
match pre JEP400 behavior.
+ *
+ * The checking order for the encoding is stdout.encoding,
sun.stdout.encoding, native.encoding, <code>Charset.defaultCharset()</code>
+ *
+ * @see
org.netbeans.modules.maven.execute.CommandLineOutputHandler#getPreferredCharset
+ *
+ * @return inferred encoding as Charset
+ */
+ private static Charset getInputOutputEncoding(){
+ String[] encodingSystemProperties = new String[]{"stdout.encoding,
sun.stdout.encoding, native.encoding"};
Review Comment:
This is one String not three!
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