jdk-sandbox: comparison test/lib/jdk/test/lib/containers/cgroup/MetricsTester.java

equal deleted inserted replaced

-:26f71e24dd24
+:bcc706c719d7
 package jdk.test.lib.containers.cgroup;
 import java.io.File;
 import java.io.FileNotFoundException;
 import java.io.IOException;
+import java.math.BigInteger;
 import java.nio.file.Files;
 import java.nio.file.Path;
 import java.nio.file.Paths;
 import java.util.Arrays;
 import java.util.HashMap;
 }
 }
 private static long getLongValueFromFile(SubSystem subSystem, String fileName) {
 String data = getFileContents(subSystem, fileName);
-return data.isEmpty() ? 0L : Long.parseLong(data);
+return data.isEmpty() ? 0L : convertStringToLong(data);
+}
+private static long convertStringToLong(String strval) {
+long retval = 0;
+if (strval == null) return 0L;
+try {
+retval = Long.parseLong(strval);
+} catch (NumberFormatException e) {
+// For some properties (e.g. memory.limit_in_bytes) we may overflow the range of signed long.
+// In this case, return Long.MAX_VALUE
+BigInteger b = new BigInteger(strval);
+if (b.compareTo(BigInteger.valueOf(Long.MAX_VALUE)) > 0) {
+return Long.MAX_VALUE;
+}
+}
+return retval;
 }
 private static long getLongValueFromFile(SubSystem subSystem, String metric, String subMetric) {
 String stats = getFileContents(subSystem, metric);
 String[] tokens = stats.split("[\\r\\n]+");
 for (int i = 0; i < tokens.length; i++) {
 if (tokens[i].startsWith(subMetric)) {
-return Long.parseLong(tokens[i].split("\\s+")[1]);
+String strval = tokens[i].split("\\s+")[1];
+return convertStringToLong(strval);
 }
 }
 return 0L;
 }