Fix HopServer charset decoding to UTF-8 apache#3590

engine/src/main/java/org/apache/hop/server/HopServer.java

@@ -89,6 +89,7 @@
 import java.io.InputStreamReader;
 import java.io.UnsupportedEncodingException;
 import java.net.URLEncoder;
+import java.nio.charset.StandardCharsets;
 import java.text.MessageFormat;
 import java.util.Date;
 import java.util.HashMap;
@@ -798,7 +799,7 @@ public String execService(IVariables variables, String service) throws Exception
 
  // Method is defined as package-protected in order to be accessible by unit tests
  String getResponseBodyAsString(InputStream is) throws IOException {
- BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(is));
+ BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(is, StandardCharsets.UTF_8));
  StringBuilder bodyBuffer = new StringBuilder();
  String line;