test/hotspot/jtreg/gc/epsilon/TestDieWithHeapDump.java
branchepsilon-gc-branch
changeset 55767 8e22715afabc
child 56350 56014b46de69
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/hotspot/jtreg/gc/epsilon/TestDieWithHeapDump.java	Mon Nov 06 18:53:38 2017 +0100
@@ -0,0 +1,120 @@
+/*
+ * Copyright (c) 2017, Red Hat, Inc. and/or its affiliates.
+ * 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 TestDieWithHeapDump
+ * @summary Epsilon GC should die on heap exhaustion with error handler attached
+ * @library /test/lib
+ * @run main TestDieWithHeapDump
+ */
+
+import java.io.*;
+import jdk.test.lib.process.OutputAnalyzer;
+import jdk.test.lib.process.ProcessTools;
+
+public class TestDieWithHeapDump extends AbstractEpsilonTest {
+
+  public static void passWith(String... args) throws Exception {
+    ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(args);
+    OutputAnalyzer out = new OutputAnalyzer(pb.start());
+    out.shouldNotContain("OutOfMemoryError");
+    out.shouldHaveExitValue(0);
+  }
+
+  public static void failWith(String... args) throws Exception {
+    ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(args);
+    Process p = pb.start();
+    OutputAnalyzer out = new OutputAnalyzer(p);
+    out.shouldContain("OutOfMemoryError");
+    if (out.getExitValue() == 0) {
+      throw new IllegalStateException("Should have failed with non-zero exit code");
+    }
+    String heapDump = "java_pid" + p.pid() + ".hprof";
+    if (!new File(heapDump).exists()) {
+      throw new IllegalStateException("Should have produced the heap dump at: " + heapDump);
+    }
+  }
+
+  public static void main(String[] args) throws Exception {
+    if (!isEpsilonEnabled()) return;
+
+    passWith("-Xmx128m",
+             "-XX:+UnlockExperimentalVMOptions",
+             "-XX:+UseEpsilonGC",
+             "-Dcount=1",
+             "-XX:+HeapDumpOnOutOfMemoryError",
+             TestDieWithHeapDump.Workload.class.getName());
+
+    failWith("-Xmx128m",
+             "-XX:+UnlockExperimentalVMOptions",
+             "-XX:+UseEpsilonGC",
+             "-XX:+HeapDumpOnOutOfMemoryError",
+             TestDieWithHeapDump.Workload.class.getName());
+
+    failWith("-Xmx128m",
+             "-Xint",
+             "-XX:+UnlockExperimentalVMOptions",
+             "-XX:+UseEpsilonGC",
+             "-XX:+HeapDumpOnOutOfMemoryError",
+             TestDieWithHeapDump.Workload.class.getName());
+
+    failWith("-Xmx128m",
+             "-Xbatch",
+             "-Xcomp",
+             "-XX:+UnlockExperimentalVMOptions",
+             "-XX:+UseEpsilonGC",
+             "-XX:+HeapDumpOnOutOfMemoryError",
+             TestDieWithHeapDump.Workload.class.getName());
+
+    failWith("-Xmx128m",
+             "-Xbatch",
+             "-Xcomp",
+             "-XX:TieredStopAtLevel=1",
+             "-XX:+UnlockExperimentalVMOptions",
+             "-XX:+UseEpsilonGC",
+             "-XX:+HeapDumpOnOutOfMemoryError",
+             TestDieWithHeapDump.Workload.class.getName());
+
+    failWith("-Xmx128m",
+             "-Xbatch",
+             "-Xcomp",
+             "-XX:TieredStopAtLevel=4",
+             "-XX:+UnlockExperimentalVMOptions",
+             "-XX:+UseEpsilonGC",
+             "-XX:+HeapDumpOnOutOfMemoryError",
+             TestDieWithHeapDump.Workload.class.getName());
+  }
+
+  public static class Workload {
+    static int COUNT = Integer.getInteger("count", 1_000_000_000); // ~24 GB allocation
+
+    static volatile Object sink;
+
+    public static void main(String... args) {
+      for (int c = 0; c < COUNT; c++) {
+        sink = new Object();
+      }
+    }
+  }
+
+}