RFR[15] JDK-8242538: java/security/SecureRandom/ThreadSafe.java failed on windows

[sha.jiang at oracle.com]

Hi,
This test failed due to the expected concurrency issue didn't raise.
This patch may mitigate this test failure.

diff -r 7a61a943ce9d test/jdk/java/security/SecureRandom/ThreadSafe.java
--- a/test/jdk/java/security/SecureRandom/ThreadSafe.java    Sat Jul 04 
01:06:07 2020 -0700
+++ b/test/jdk/java/security/SecureRandom/ThreadSafe.java    Mon Jul 06 
10:15:55 2020 +0800
@@ -1,5 +1,5 @@
  /*
- * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2016, 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
@@ -87,7 +87,7 @@
              }
              inCall = true;
              try {
-                Thread.sleep(100);
+                Thread.sleep(500);
              } catch (Exception e) {
                  // OK
              }

Best regards,
John Jiang