--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/jdk/jdk/jfr/api/consumer/streaming/TestProcess.java	Fri Nov 22 17:20:43 2019 +0100
@@ -0,0 +1,138 @@
+/*
+ * Copyright (c) 2019, 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.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * 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.
+ */
+package jdk.jfr.api.consumer.streaming;
+
+import java.io.IOException;
+import java.io.RandomAccessFile;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import java.util.Properties;
+
+import jdk.internal.misc.Unsafe;
+import jdk.jfr.Event;
+import jdk.test.lib.process.ProcessTools;
+
+import com.sun.tools.attach.VirtualMachine;
+
+/**
+ * Class that emits a NUMBER_OF_EVENTS and then awaits crash or exit
+ *
+ * Requires jdk.attach module.
+ *
+ */
+public final class TestProcess {
+
+    private static class TestEvent extends Event {
+    }
+
+    public final static int NUMBER_OF_EVENTS = 10;
+
+    private final Process process;
+    private final Path path;
+
+    public TestProcess(String name) throws IOException {
+        this.path = Paths.get("action-" + System.currentTimeMillis()).toAbsolutePath();
+        String[] args = {
+                "--add-exports",
+                "java.base/jdk.internal.misc=ALL-UNNAMED",
+                "-XX:StartFlightRecording:settings=none",
+                TestProcess.class.getName(), path.toString()
+            };
+        ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(false, args);
+        process = ProcessTools.startProcess(name, pb);
+    }
+
+    public static void main(String... args) throws Exception {
+        for (int i = 0; i < NUMBER_OF_EVENTS; i++) {
+            TestEvent e = new TestEvent();
+            e.commit();
+        }
+
+        Path path = Paths.get(args[0]);
+        while (true) {
+            try {
+                String action = Files.readString(path);
+                if ("crash".equals(action)) {
+                    System.out.println("About to crash...");
+                    Unsafe.getUnsafe().putInt(0L, 0);
+                }
+                if ("exit".equals(action)) {
+                    System.out.println("About to exit...");
+                    System.exit(0);
+                }
+            } catch (Exception ioe) {
+                // Ignore
+            }
+            takeNap();
+        }
+    }
+
+    public Path getRepository() {
+        while (true) {
+            try {
+                VirtualMachine vm = VirtualMachine.attach(String.valueOf(process.pid()));
+                Properties p = vm.getSystemProperties();
+                vm.detach();
+                String repo = (String) p.get("jdk.jfr.repository");
+                if (repo != null) {
+                    return Paths.get(repo);
+                }
+            } catch (Exception e) {
+                System.out.println("Attach failed: " + e.getMessage());
+                System.out.println("Retrying...");
+            }
+            takeNap();
+        }
+    }
+
+    private static void takeNap() {
+        try {
+            Thread.sleep(10);
+        } catch (InterruptedException ie) {
+            // ignore
+        }
+    }
+
+    public void crash() {
+        try {
+            Files.writeString(path, "crash");
+        } catch (IOException ioe) {
+            ioe.printStackTrace();
+        }
+    }
+
+    public void exit() {
+        try {
+            Files.writeString(path, "exit");
+        } catch (IOException ioe) {
+            ioe.printStackTrace();
+        }
+    }
+
+    public long pid() {
+        return process.pid();
+    }
+}