# HG changeset patch
# User bpb
# Date 1438722091 25200
#      Tue Aug 04 14:01:31 2015 -0700
# Node ID 0a9eb013e9f940d55287d91e42fbb29ec51c80ff
# Parent  9bce83952890d248de208851c21df9e5df7d9f2b
8133010: (fs) Create test for parallel access to Files.probeContentType()
Summary: Add a regression test based on the test source included in JDK-8080115.
Reviewed-by: XXX

diff --git a/test/java/nio/file/Files/probeContentType/ParallelProbes.java b/test/java/nio/file/Files/probeContentType/ParallelProbes.java
new file mode 100644
--- /dev/null
+++ b/test/java/nio/file/Files/probeContentType/ParallelProbes.java
@@ -0,0 +1,81 @@
+/*
+ * 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 java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Path;
+
+/* @test
+ * @summary Test probing content type simultaneously from multiple threads.
+ * @requires (os.family == "linux") | (os.family == "solaris")
+ * @run main/othervm ParallelProbes 10
+ */
+public class ParallelProbes {
+
+    private int threads = 0;
+    private static final int REPEATS = 1000;
+
+    public ParallelProbes(int threads) {
+        this.threads = threads;
+        System.out.println("Using <" + threads + "> threads.");
+    }
+
+    public void start() throws IOException {
+        for (int i = 0; i < threads; i++) {
+            final Path p = createTmpFile();
+            Runnable r = createRunnable(p);
+            new Thread(r, "thread-" + i).start();
+        }
+    }
+
+    private Runnable createRunnable(final Path p) {
+        Runnable r = new Runnable() {
+            public void run() {
+                for (int i = 0; i < REPEATS; i++) {
+                    try {
+                        System.out.println(Thread.currentThread().getName()
+                            + " -> " + Files.probeContentType(p));
+                    } catch (IOException ioException) {
+                        ioException.printStackTrace();
+                    }
+                }
+            }
+        };
+        return r;
+    }
+
+    private Path createTmpFile() throws IOException {
+        final Path p = Files.createTempFile("prefix", ".json");
+        Files.write(p, "{\"test\"}".getBytes());
+        System.out.println("Write test file <" + p + ">");
+        return p;
+    }
+
+    public static void main(String[] args) throws Exception {
+        if (args != null && args.length != 1) {
+            new ParallelProbes(1).start();
+        } else {
+            new ParallelProbes(Integer.parseInt(args[0])).start();
+        }
+    }
+}