--- old/test/hotspot/jtreg/runtime/LoadClass/LongBCP.java	2018-09-10 10:43:00.664872680 -0700
+++ new/test/hotspot/jtreg/runtime/LoadClass/LongBCP.java	2018-09-10 10:43:00.333841401 -0700
@@ -29,6 +29,7 @@
  * @library /test/lib
  * @modules java.base/jdk.internal.misc
  *          java.management
+ *          jdk.jartool/sun.tools.jar
  * @run main LongBCP
  */
 
@@ -80,6 +81,23 @@
         pb = ProcessTools.createJavaProcessBuilder(
             bootCP, "Hello");
 
+        output = new OutputAnalyzer(pb.start());
+        output.shouldContain("Hello World")
+              .shouldHaveExitValue(0);
+
+        // create a hello.jar
+        sun.tools.jar.Main jarTool = new sun.tools.jar.Main(System.out, System.err, "jar");
+        String helloJar = destDir.toString() + File.separator + "hello.jar";
+        if (!jarTool.run(new String[]
+            {"-cf", helloJar, "-C", destDir.toString(), "Hello.class"})) {
+            throw new RuntimeException("Could not write the Hello jar file");
+        }
+
+        // run with long bootclasspath to hello.jar
+        bootCP = "-Xbootclasspath/a:" + helloJar;
+        pb = ProcessTools.createJavaProcessBuilder(
+            bootCP, "Hello");
+
         output = new OutputAnalyzer(pb.start());
         output.shouldContain("Hello World")
               .shouldHaveExitValue(0);