hotspot/test/gc/serial/HeapChangeLogging.java
changeset 30764 fec48bf5a827
parent 30604 b8d532cb6420
child 35061 be6025ebffea
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/gc/serial/HeapChangeLogging.java	Wed May 13 15:16:06 2015 +0200
@@ -0,0 +1,81 @@
+/*
+ * Copyright (c) 2013, 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.
+ */
+
+/*
+ * @test HeapChangeLogging.java
+ * @bug 8027440
+ * @library /testlibrary
+ * @modules java.base/sun.misc
+ *          java.management
+ * @build HeapChangeLogging
+ * @summary Allocate to get a promotion failure and verify that that heap change logging is present.
+ * @run main HeapChangeLogging
+ */
+
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+import jdk.test.lib.*;
+
+public class HeapChangeLogging {
+  public static void main(String[] args) throws Exception {
+    ProcessBuilder pb = ProcessTools.createJavaProcessBuilder("-Xmx128m", "-Xmn100m", "-XX:+UseSerialGC", "-XX:+PrintGC", "HeapFiller");
+    OutputAnalyzer output = new OutputAnalyzer(pb.start());
+    String stdout = output.getStdout();
+    System.out.println(stdout);
+    Matcher stdoutMatcher = Pattern.compile("\\[GC .Allocation Failure.*K->.*K\\(.*K\\), .* secs\\]", Pattern.MULTILINE).matcher(stdout);
+    if (!stdoutMatcher.find()) {
+      throw new RuntimeException("No proper GC log line found");
+    }
+    output.shouldHaveExitValue(0);
+  }
+}
+
+class HeapFiller {
+  public static Entry root;
+  private static final int PAYLOAD_SIZE = 1000;
+
+  public static void main(String[] args) {
+    root = new Entry(PAYLOAD_SIZE, null);
+    Entry current = root;
+    try {
+      while (true) {
+        Entry newEntry = new Entry(PAYLOAD_SIZE, current);
+        current = newEntry;
+      }
+    } catch (OutOfMemoryError e) {
+      root = null;
+    }
+
+  }
+}
+
+class Entry {
+  public Entry previous;
+  public byte[] payload;
+
+  Entry(int payloadSize, Entry previous) {
+    payload = new byte[payloadSize];
+    this.previous = previous;
+  }
+}