Use standard charset

Author: dizzzz

exist-core/src/main/java/org/exist/source/URLSource.java

@@ -150,7 +150,7 @@ public Reader getReader() throws IOException {
             }
             Reader reader = null;
             if (responseCode != HttpURLConnection.HTTP_NOT_FOUND) {
-                reader = new InputStreamReader(connection.getInputStream(), "UTF-8");
+                reader = new InputStreamReader(connection.getInputStream(), StandardCharsets.UTF_8);
             }
             connection = null;
             return reader;

extensions/modules/file/src/main/java/org/exist/xquery/modules/file/Sync.java

@@ -25,6 +25,7 @@
 import java.io.InputStream;
 import java.io.OutputStreamWriter;
 import java.io.Writer;
+import java.nio.charset.StandardCharsets;
 import java.nio.file.Files;
 import java.nio.file.Path;
 import java.nio.file.StandardCopyOption;
@@ -213,7 +214,7 @@ private void saveXML(final Path targetDir, final DocumentImpl doc, final MemTree
             if (isRepoXML) {
                 processRepoDesc(targetFile, doc, sax, output);
             } else {
-				try(final Writer writer = new OutputStreamWriter(Files.newOutputStream(targetFile), "UTF-8")) {
+				try(final Writer writer = new OutputStreamWriter(Files.newOutputStream(targetFile), StandardCharsets.UTF_8)) {
 					sax.setOutput(writer, DEFAULT_PROPERTIES);
 					Serializer serializer = context.getBroker().getSerializer();
 					serializer.reset();
@@ -244,7 +245,7 @@ private void processRepoDesc(final Path targetFile, final DocumentImpl doc, fina
             final DocumentBuilder builder = DocumentBuilderFactory.newInstance().newDocumentBuilder();
             final Document original = builder.parse(targetFile.toFile());
 
-            try (final Writer writer = new OutputStreamWriter(Files.newOutputStream(targetFile), "UTF-8")) {
+            try (final Writer writer = new OutputStreamWriter(Files.newOutputStream(targetFile), StandardCharsets.UTF_8)) {
                 sax.setOutput(writer, DEFAULT_PROPERTIES);
 
                 final StreamSource stylesource = new StreamSource(Sync.class.getResourceAsStream("repo.xsl"));

extensions/modules/process/src/main/java/org/exist/xquery/modules/process/Execute.java

@@ -35,6 +35,7 @@
 import javax.xml.stream.XMLStreamException;
 import javax.xml.stream.XMLStreamReader;
 import java.io.*;
+import java.nio.charset.StandardCharsets;
 import java.nio.file.Path;
 import java.nio.file.Paths;
 import java.util.*;
@@ -130,7 +131,7 @@ public Sequence eval(final Sequence[] args, final Sequence contextSequence) thro
         try {
             Process process = pb.start();
             if (stdin != null) {
-                try(final Writer writer = new BufferedWriter(new OutputStreamWriter(process.getOutputStream(), "UTF-8"))) {
+                try(final Writer writer = new BufferedWriter(new OutputStreamWriter(process.getOutputStream(), StandardCharsets.UTF_8))) {
                     for (final String line : stdin) {
                         writer.write(line);
                     }
@@ -191,7 +192,7 @@ private ElementImpl createReport(int exitValue, List<String> output, List<String
     }
 
     private List<String> readOutput(Process process) throws XPathException {
-        try(final BufferedReader reader = new BufferedReader(new InputStreamReader(process.getInputStream(), "UTF-8"))) {
+        try(final BufferedReader reader = new BufferedReader(new InputStreamReader(process.getInputStream(), StandardCharsets.UTF_8))) {
             List<String> output = new ArrayList<>(31);
 
             String line;