Compilation can be done on any JDK >= 8

Author: Jaroslav Tulach

pom.xml

@@ -204,5 +204,11 @@
             <version>4.12</version>
             <scope>test</scope>
         </dependency>
+        <dependency>
+            <groupId>org.graalvm.sdk</groupId>
+            <artifactId>graal-sdk</artifactId>
+            <version>${graalvm.version}</version>
+            <scope>provided</scope>
+        </dependency>
     </dependencies>
 </project>

src/main/java/com/mycompany/app/App.java

@@ -71,7 +71,16 @@ public class App {
             + "}\n";
 
     public static void main(String[] args) throws Exception {
-        benchGraalPolyglotContext();
+        try {
+            benchGraalPolyglotContext();
+        } catch (LinkageError err) {
+            System.out.println("!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!");
+            System.out.println("!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!");
+            System.out.println("!Download GraalVM.org or use JDK11!");
+            System.out.println("!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!");
+            System.out.println("!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!");
+            System.exit(0);
+        }
         benchGraalScriptEngine();
         benchNashornScriptEngine();
     }