test/jtreg-ext/requires/VMProps.java

@@ -20,19 +20,23 @@
  * or visit www.oracle.com if you need additional information or have any
  * questions.
  */
 package requires;
 
+import java.io.BufferedInputStream;
+import java.io.FileInputStream;
 import java.io.IOException;
+import java.io.InputStream;
 import java.nio.file.Files;
 import java.nio.file.Path;
 import java.nio.file.Paths;
 import java.nio.file.StandardOpenOption;
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
+import java.util.Properties;
 import java.util.concurrent.Callable;
 import java.util.concurrent.TimeUnit;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 

@@ -77,10 +81,11 @@
         map.put("vm.cds.custom.loaders", vmCDSForCustomLoaders());
         map.put("vm.cds.archived.java.heap", vmCDSForArchivedJavaHeap());
         // vm.graal.enabled is true if Graal is used as JIT
         map.put("vm.graal.enabled", isGraalEnabled());
         map.put("docker.support", dockerSupport());
+        map.put("release.implementor", implementor());
         vmGC(map); // vm.gc.X = true/false
         vmOptFinalFlags(map);
 
         VMProps.dump(map);
         return map;

@@ -419,10 +424,22 @@
 
         return (p.exitValue() == 0);
     }
 
 
+    private String implementor() {
+        try (InputStream in = new BufferedInputStream(new FileInputStream(
+                System.getProperty("java.home") + "/release"))) {
+            Properties properties = new Properties();
+            properties.load(in);
+            return properties.getProperty("IMPLEMENTOR").replace("\"", "");
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+        return null;
+    }
+
 
     /**
      * Dumps the map to the file if the file name is given as the property.
      * This functionality could be helpful to know context in the real
      * execution.