--- old/test/hotspot/jtreg/gc/shenandoah/options/TestWrongBarrierEnable.java	2020-06-17 13:38:30.172119583 +0200
+++ new/test/hotspot/jtreg/gc/shenandoah/options/TestWrongBarrierEnable.java	2020-06-17 13:38:29.888111890 +0200
@@ -56,6 +56,7 @@
     private static void shouldFailAll(String h, String[] barriers) throws Exception {
         for (String b : barriers) {
             ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
+                    "-Xmx128m",
                     "-XX:+UnlockDiagnosticVMOptions",
                     "-XX:+UnlockExperimentalVMOptions",
                     "-XX:+UseShenandoahGC",
@@ -73,6 +74,7 @@
     private static void shouldPassAll(String h, String[] barriers) throws Exception {
         for (String b : barriers) {
             ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
+                    "-Xmx128m",
                     "-XX:+UnlockDiagnosticVMOptions",
                     "-XX:+UnlockExperimentalVMOptions",
                     "-XX:+UseShenandoahGC",