--- old/test/jdk/java/util/concurrent/tck/ForkJoinPool9Test.java	2019-09-14 11:12:43.260946746 -0700
+++ new/test/jdk/java/util/concurrent/tck/ForkJoinPool9Test.java	2019-09-14 11:12:42.888946486 -0700
@@ -38,7 +38,6 @@
 import java.util.concurrent.ForkJoinPool;
 import java.util.concurrent.ForkJoinTask;
 import java.util.concurrent.Future;
-import java.util.concurrent.ThreadLocalRandom;
 import java.util.stream.Stream;
 
 import junit.framework.Test;
@@ -81,7 +80,7 @@
             Thread currentThread = Thread.currentThread();
 
             Stream.of(systemClassLoader, null).forEach(cl -> {
-                if (ThreadLocalRandom.current().nextBoolean())
+                if (randomBoolean())
                     // should always be permitted, without effect
                     currentThread.setContextClassLoader(cl);
                 });