--- old/test/hotspot/jtreg/gc/shenandoah/options/TestWrongBarrierDisable.java	2020-06-17 13:38:29.512101702 +0200
+++ new/test/hotspot/jtreg/gc/shenandoah/options/TestWrongBarrierDisable.java	2020-06-17 13:38:29.236094222 +0200
@@ -62,6 +62,7 @@
     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",
@@ -79,6 +80,7 @@
     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",