8206456: [TESTBUG] docker jtreg tests fail on systems without cpuset.…

…effective_cpus / cpuset.effective_mems

The changes to MetricsTester.java in the original commit were merged in "8223147: JFR Backport".

Reviewed-by: sgehwolf
Backport-of: 6fc4db4799599df66a2cf5207068336ce68136ff

jdk/test/jdk/internal/platform/docker/MetricsCpuTester.java

@@ -95,10 +95,13 @@ private static void testCpuSets(String cpuset) {
                     + Arrays.toString(ipCpuSet) + ", got : " + Arrays.toString(cpuSets));
         }
 
-        if (!Arrays.equals(ipCpuSet, effectiveCpus)) {
-            throw new RuntimeException("Effective Cpusets not equal, expected : "
-                    + Arrays.toString(ipCpuSet) + ", got : "
-                    + Arrays.toString(effectiveCpus));
+        // Check to see if this metric is supported on this platform
+        if (effectiveCpus.length != 0) {
+            if (!Arrays.equals(ipCpuSet, effectiveCpus)) {
+                throw new RuntimeException("Effective Cpusets not equal, expected : "
+                        + Arrays.toString(ipCpuSet) + ", got : "
+                        + Arrays.toString(effectiveCpus));
+            }
         }
         System.out.println("TEST PASSED!!!");
     }
@@ -127,10 +130,13 @@ private static void testCpuSetMemNodes(String cpusetMems) {
                     + Arrays.toString(cpuSets));
         }
 
-        if (!Arrays.equals(ipCpuSet, effectiveMems)) {
-            throw new RuntimeException("Effective mem nodes not equal, expected : "
-                    + Arrays.toString(ipCpuSet) + ", got : "
-                    + Arrays.toString(effectiveMems));
+        // Check to see if this metric is supported on this platform
+        if (effectiveMems.length != 0) {
+            if (!Arrays.equals(ipCpuSet, effectiveMems)) {
+                throw new RuntimeException("Effective mem nodes not equal, expected : "
+                        + Arrays.toString(ipCpuSet) + ", got : "
+                        + Arrays.toString(effectiveMems));
+            }
         }
         System.out.println("TEST PASSED!!!");
     }