--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/gc/arguments/TestArrayAllocatorMallocLimit.java Mon Aug 11 14:03:06 2014 +0200
@@ -0,0 +1,97 @@
+/*
+ * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+/*
+ * @test TestArrayAllocatorMallocLimit
+ * @summary Sanity check that the ArrayAllocatorMallocLimit flag can be set.
+ * The test helps verifying that size_t flags can be set/read.
+ * @bug 8054823
+ * @key gc
+ * @library /testlibrary
+ * @run driver TestArrayAllocatorMallocLimit
+ */
+
+import com.oracle.java.testlibrary.Asserts;
+import com.oracle.java.testlibrary.OutputAnalyzer;
+import com.oracle.java.testlibrary.ProcessTools;
+import java.math.BigInteger;
+
+public class TestArrayAllocatorMallocLimit {
+ public static void main(String [] args) throws Exception {
+ testDefaultValue();
+ testSetValue();
+ }
+
+ private static final String flagName = "ArrayAllocatorMallocLimit";
+
+ // size_t ArrayAllocatorMallocLimit = 18446744073709551615{experimental}
+ private static final String printFlagsFinalPattern = " *size_t *" + flagName + " *:?= *(\\d+) *\\{experimental\\} *";
+
+ public static void testDefaultValue() throws Exception {
+ ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
+ "-XX:+UnlockExperimentalVMOptions", "-XX:+PrintFlagsFinal", "-version");
+
+ OutputAnalyzer output = new OutputAnalyzer(pb.start());
+ String value = output.firstMatch(printFlagsFinalPattern, 1);
+
+ try {
+ Asserts.assertNotNull(value, "Couldn't find size_t flag " + flagName);
+
+ // A size_t is not always parseable with Long.parseValue,
+ // use BigInteger instead.
+ BigInteger biValue = new BigInteger(value);
+
+ // Sanity check that we got a non-zero value.
+ Asserts.assertNotEquals(biValue, "0");
+
+ output.shouldHaveExitValue(0);
+ } catch (Exception e) {
+ System.err.println(output.getOutput());
+ throw e;
+ }
+ }
+
+ public static void testSetValue() throws Exception {
+ long flagValue = 2048;
+
+ ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
+ "-XX:+UnlockExperimentalVMOptions", "-XX:" + flagName + "=" + flagValue, "-XX:+PrintFlagsFinal", "-version");
+
+ OutputAnalyzer output = new OutputAnalyzer(pb.start());
+ String value = output.firstMatch(printFlagsFinalPattern, 1);
+
+ try {
+ Asserts.assertNotNull("Couldn't find size_t flag " + flagName);
+
+ long longValue = Long.parseLong(value);
+
+ Asserts.assertEquals(longValue, flagValue);
+
+ output.shouldHaveExitValue(0);
+ } catch (Exception e) {
+ System.err.println(output.getOutput());
+ throw e;
+ }
+ }
+
+}