hotspot/test/serviceability/dcmd/gc/HeapDumpTest.java
changeset 28821 f7820f311663
child 28827 a94bd8effda9
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/serviceability/dcmd/gc/HeapDumpTest.java	Fri Jan 30 20:00:57 2015 +0100
@@ -0,0 +1,90 @@
+/*
+ * Copyright (c) 2015, 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.
+ */
+
+import org.testng.annotations.Test;
+import org.testng.Assert;
+
+import java.io.IOException;
+
+import com.oracle.java.testlibrary.JDKToolFinder;
+import com.oracle.java.testlibrary.OutputAnalyzer;
+import com.oracle.java.testlibrary.dcmd.CommandExecutor;
+import com.oracle.java.testlibrary.dcmd.PidJcmdExecutor;
+
+/*
+ * @test
+ * @summary Test of diagnostic command GC.heap_dump
+ * @library /testlibrary
+ * @build com.oracle.java.testlibrary.*
+ * @build com.oracle.java.testlibrary.dcmd.*
+ * @run testng HeapDumpTest
+ */
+public class HeapDumpTest {
+    protected String heapDumpArgs = "";
+
+    public void run(CommandExecutor executor) {
+        String fileName = "jcmd.gc.heap_dump." + System.currentTimeMillis() + ".hprof";
+        String cmd = "GC.heap_dump " + heapDumpArgs + " " + fileName;
+        executor.execute(cmd);
+
+        verifyHeapDump(fileName);
+    }
+
+    private void verifyHeapDump(String fileName) {
+        String jhat = JDKToolFinder.getTestJDKTool("jhat");
+        String[] cmd = { jhat, "-parseonly", "true", fileName };
+
+        ProcessBuilder pb = new ProcessBuilder(cmd);
+        pb.redirectErrorStream(true);
+        Process p = null;
+        OutputAnalyzer output = null;
+
+        try {
+            p = pb.start();
+            output = new OutputAnalyzer(p);
+
+            /*
+             * Some hprof dumps of all objects contain constantPoolOop references that cannot be resolved, so we ignore
+             * failures about resolving constantPoolOop fields using a negative lookahead
+             */
+            output.shouldNotMatch(".*WARNING(?!.*Failed to resolve object.*constantPoolOop.*).*");
+        } catch (IOException e) {
+            Assert.fail("Test error: Caught exception while reading stdout/err of jhat", e);
+        } finally {
+            if (p != null) {
+                p.destroy();
+            }
+        }
+
+        if (output.getExitValue() != 0) {
+            Assert.fail("Test error: jhat exit code was nonzero");
+        }
+    }
+
+    /* GC.heap_dump is not available over JMX, running jcmd pid executor instead */
+    @Test
+    public void pid() {
+        run(new PidJcmdExecutor());
+    }
+}
+