diff -r 4ebc2e2fb97c -r 71c04702a3d5 test/jdk/com/sun/jdi/sde/SourceDebugExtensionTest.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/jdk/com/sun/jdi/sde/SourceDebugExtensionTest.java	Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,81 @@
+/**
+ * @test
+ * @bug 4390869
+ * @bug 4460328
+ * @summary Test the new SourceDebugExtension facility
+ * @author Robert Field
+ *
+ * @library ..
+ *
+ * @run build TestScaffold VMConnection TargetListener TargetAdapter InstallSDE
+ * @run compile SourceDebugExtensionTest.java
+ * @run compile -g SourceDebugExtensionTarg.java
+ * @run driver SourceDebugExtensionTest
+ */
+import com.sun.jdi.*;
+import com.sun.jdi.event.*;
+import com.sun.jdi.request.*;
+
+import java.util.*;
+import java.io.File;
+
+public class SourceDebugExtensionTest extends TestScaffold {
+    ReferenceType targetClass;
+
+    SourceDebugExtensionTest (String args[]) {
+        super(args);
+    }
+
+    public static void main(String[] args)      throws Exception {
+        testSetUp();
+        new SourceDebugExtensionTest(args).startTests();
+    }
+
+    /********** test set-up **********/
+
+    static void testSetUp() throws Exception {
+        InstallSDE.install(new File(System.getProperty("test.classes", "."),
+                                    "SourceDebugExtensionTarg.class"),
+                           new File(System.getProperty("test.src", "."),
+                                    "testString"));
+    }
+
+    /********** test core **********/
+
+    protected void runTests() throws Exception {
+        /*
+         * Get to the top of main()
+         * to determine targetClass
+         */
+        BreakpointEvent bpe = startToMain("SourceDebugExtensionTarg");
+        targetClass = bpe.location().declaringType();
+
+        if (!vm().canGetSourceDebugExtension()) {
+            failure("FAIL: canGetSourceDebugExtension() is false");
+        } else {
+            println("canGetSourceDebugExtension() is true");
+        }
+
+        String expected = "An expected attribute string";
+        String sde = targetClass.sourceDebugExtension();
+        if (!sde.equals(expected)) {
+            failure("FAIL: got '" + sde +
+                    "' expected: '" + expected + "'");
+        }
+
+        /*
+         * resume the target listening for events
+         */
+        listenUntilVMDisconnect();
+
+        /*
+         * deal with results of test
+         * if anything has called failure("foo") testFailed will be true
+         */
+        if (!testFailed) {
+            println("SourceDebugExtensionTest: passed");
+        } else {
+            throw new Exception("SourceDebugExtensionTest: failed");
+        }
+    }
+}