--- old/test/hotspot/jtreg/serviceability/sa/TestJmapCore.java	2018-05-24 10:20:18.361950946 -0700
+++ new/test/hotspot/jtreg/serviceability/sa/TestJmapCore.java	2018-05-24 10:20:18.020951800 -0700
@@ -23,10 +23,10 @@
 
 /*
  * @test TestJmapCore
- * @summary Test verifies that jhsdb jmap could generate heap dump from core
+ * @summary Test verifies that jhsdb jmap could generate heap dump from core when heap is full
  * @modules java.base/jdk.internal.misc
  * @library /test/lib
- * @run driver TestJmapCore
+ * @run driver/timeout=240 TestJmapCore run heap
  */
 
 import jdk.test.lib.Asserts;
@@ -39,27 +39,36 @@
 import jdk.test.lib.process.OutputAnalyzer;
 
 import java.io.File;
-import java.util.Arrays;
-import java.util.stream.Collectors;
 
 public class TestJmapCore {
     static final String pidSeparator = ":KILLED_PID";
 
+    public static String HEAP_OOME = "heap";
+    public static String METASPACE_OOME = "metaspace";
+
+
     public static void main(String[] args) throws Throwable {
         if (args.length == 1) {
-            // If any arguments are set prints pid so main process coud find corefile
+            // If 1 argument is set prints pid so main process could find corefile
             System.out.println(ProcessHandle.current().pid() + pidSeparator);
             try {
-                Object[] oa = new Object[Integer.MAX_VALUE / 2];
-                for(int i = 0; i < oa.length; i++) {
-                    oa[i] = new Object[Integer.MAX_VALUE / 2];
+                if (args[0].equals(HEAP_OOME)) {
+                    Object[] oa = new Object[Integer.MAX_VALUE / 2];
+                    for(int i = 0; i < oa.length; i++) {
+                        oa[i] = new Object[Integer.MAX_VALUE / 2];
+                    }
+                } else {
+                    GeneratingClassLoader loader = new GeneratingClassLoader();
+                    for (int i = 0; ; i++) {
+                        loader.loadClass(loader.getClassName(i));
+                    }
                 }
                 throw new Error("OOME not triggered");
             } catch (OutOfMemoryError err) {
                 return;
             }
         }
-        test();
+        test(args[1]);
     }
 
     // Test tries to run java with ulimit unlimited if it is possible
@@ -75,10 +84,10 @@
         }
     }
 
-    static void test() throws Throwable {
+    static void test(String type) throws Throwable {
         ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(true, "-XX:+CreateCoredumpOnCrash",
-                "-XX:+CrashOnOutOfMemoryError", "-XX:-TransmitErrorReport",
-                TestJmapCore.class.getName(), "throwOOME");
+                "-XX:MaxMetaspaceSize=64m", "-XX:+CrashOnOutOfMemoryError", "-XX:-TransmitErrorReport",
+                TestJmapCore.class.getName(), type);
 
         boolean useDefaultUlimit = useDefaultUlimit();
         System.out.println("Run test with ulimit: " + (useDefaultUlimit ? "default" : "unlimited"));