8243432: use reproducible random in :vmTestbase_vm_defmeth

Reviewed-by: dholmes

test/hotspot/jtreg/vmTestbase/vm/runtime/defmeth/StressTest.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2013, 2018, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2013, 2020, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -37,6 +37,7 @@
 import vm.share.options.Option;
 import vm.share.options.OptionSupport;
 import vm.share.options.Options;
+import jdk.test.lib.Utils;
 import static jdk.internal.org.objectweb.asm.Opcodes.*;
 
 /*
@@ -72,7 +73,7 @@
         private Throwable reason;
         private volatile long executedTests = 0;
 
-        public Worker(String id, int seed) {
+        public Worker(String id, long seed) {
             setName(id);
             this.rand = new Random(seed);
         }
@@ -215,7 +216,7 @@ private void configureTests() {
     private void startWorkers() {
         Random rand;
         if (seed == 0) {
-            seed = (new Random()).nextInt();
+            seed = Utils.SEED;
         }
 
         System.out.printf("Seed: %d\n", seed);
@@ -247,7 +248,7 @@ private void startWorkers() {
         for (int i = 0; i < workers.length; i++) {
             workers[i] = new Worker(
                     String.format("Worker #%d/%d", i+1, workers.length),
-                    rand.nextInt());
+                    rand.nextLong());
         }
 
         for (Worker worker : workers) {

test/hotspot/jtreg/vmTestbase/vm/runtime/defmeth/scenarios/Stress_noredefine/TestDescription.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017, 2018, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2017, 2020, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -24,6 +24,7 @@
 
 /*
  * @test
+ * @key randomness
  * @modules java.base/jdk.internal.org.objectweb.asm:+open java.base/jdk.internal.org.objectweb.asm.util:+open
  *
  * @summary converted from VM Testbase vm/runtime/defmeth/scenarios/Stress_noredefine.

test/hotspot/jtreg/vmTestbase/vm/runtime/defmeth/scenarios/Stress_redefine/TestDescription.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017, 2018, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2017, 2020, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -24,6 +24,7 @@
 
 /*
  * @test
+ * @key randomness
  * @modules java.base/jdk.internal.org.objectweb.asm:+open java.base/jdk.internal.org.objectweb.asm.util:+open
  *
  * @summary converted from VM Testbase vm/runtime/defmeth/scenarios/Stress_redefine.