8265106: IGV: Enforce en-US locale while parsing ideal graph

Co-authored-by: Roberto Castañeda Lozano <rcastanedalo@openjdk.org>
Reviewed-by: thartmann, chagedorn

Author: 2 people

src/utils/IdealGraphVisualizer/Data/src/main/java/com/sun/hotspot/igv/data/serialization/Parser.java

@@ -34,6 +34,7 @@
 import java.nio.channels.ReadableByteChannel;
 import java.util.ArrayList;
 import java.util.HashMap;
+import java.util.Locale;
 import java.util.Map;
 import javax.swing.SwingUtilities;
 import javax.xml.parsers.ParserConfigurationException;
@@ -529,6 +530,8 @@ public GraphDocument parse() throws IOException {
         }
         try {
             XMLReader reader = createReader();
+            // To enforce using English for non-English users, we must use Locale.ROOT rather than Locale.ENGLISH
+            reader.setProperty("http://apache.org/xml/properties/locale", Locale.ROOT);
             reader.setContentHandler(new XMLParser(xmlDocument, monitor));
             reader.parse(new InputSource(Channels.newInputStream(channel)));
         } catch (SAXException ex) {

src/utils/IdealGraphVisualizer/Data/src/test/java/com/sun/hotspot/igv/data/serialization/ParserTest.java

@@ -222,4 +222,10 @@ public void testParse() {
         testBoth(new GraphDocument(), "<graphDocument></graphDocument>");
     }
 
+    @Test
+    public void testParseIncompleteXML() {
+        // Exception should be swallowed, see catch clause in GraphParser.parse.
+        testBoth(new GraphDocument(), "<graphDocument>");
+    }
+
 }