PolyglotTest.java

PolyglotTest.java

public class PolyglotTest {
 
    public static void main(String[] args) {
        System.out.println("Hello World from Java!");
 
        org.graalvm.polyglot.Context context = org.graalvm.polyglot.Context.newBuilder().allowAllAccess(true).build();
 
        context.eval("js", "print('Hello World from JavaScript!');");
        // context.eval("python", "print('Hello World from Python!')");
        // context.eval("R", "print('Hello World from R!')");
        // context.eval("ruby", "puts 'Hello World from Ruby!'");
 
        context.close();
 
        try { createHeapDump(); }
        catch (java.io.IOException ex) {}
    }
 
    private static void createHeapDump() throws java.io.IOException {
        java.io.File file = java.io.File.createTempFile("svm-heapdump-", ".hprof");
        java.io.FileOutputStream fileOutputStream = new java.io.FileOutputStream(file);
 
        String command = "HeapDump.dumpHeap(FileOutputStream, Boolean)Boolean";
        Compiler.command(new Object[] { command, fileOutputStream, Boolean.TRUE });
 
        fileOutputStream.close();
        System.out.println("Heap dump saved to " + file.getAbsolutePath());
    }
 
}