--- a/test/gc/arguments/TestAggressiveHeap.java	Wed Dec 10 13:58:30 2014 +0000
+++ b/test/gc/arguments/TestAggressiveHeap.java	Wed May 16 10:44:59 2018 +0200
@@ -51,13 +51,18 @@
     // Option requires at least 256M, else error during option processing.
     private static final long minMemory = 256 * 1024 * 1024;
 
+    // Setting the heap to half of the physical memory is not suitable for
+    // a test environment with many tests running concurrently, setting to
+    // half of the required size instead.
+    private static final String heapSizeOption = "-Xmx128M";
+
     // bool UseParallelGC := true {product}
     private static final String parallelGCPattern =
         " *bool +UseParallelGC *:= *true +\\{product\\}";
 
     private static void testFlag() throws Exception {
         ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
-            option, "-XX:+PrintFlagsFinal", "-version");
+            option, heapSizeOption, "-XX:+PrintFlagsFinal", "-version");
 
         OutputAnalyzer output = new OutputAnalyzer(pb.start());