diff -r 377e49b3014c -r 47fdb5b0fa41 test/hotspot/jtreg/gc/arguments/TestG1PercentageOptions.java
--- a/test/hotspot/jtreg/gc/arguments/TestG1PercentageOptions.java	Mon Jul 08 12:14:15 2019 -0400
+++ b/test/hotspot/jtreg/gc/arguments/TestG1PercentageOptions.java	Mon Jul 08 17:24:21 2019 -0400
@@ -30,6 +30,7 @@
  * @requires vm.gc.G1
  * @summary Test argument processing of various percentage options
  * @library /test/lib
+ * @library /
  * @modules java.base/jdk.internal.misc
  *          java.management
  * @run driver gc.arguments.TestG1PercentageOptions
@@ -65,7 +66,7 @@
 
     private static void check(String flag, boolean is_valid) throws Exception {
         String[] flags = new String[] { "-XX:+UseG1GC", flag, "-version" };
-        ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(flags);
+        ProcessBuilder pb = GCArguments.createJavaProcessBuilder(flags);
         OutputAnalyzer output = new OutputAnalyzer(pb.start());
         if (is_valid) {
             output.shouldHaveExitValue(0);