hotspot/test/runtime/Thread/TestThreadStackSizes.java
changeset 46346 4085295dcf51
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/runtime/Thread/TestThreadStackSizes.java	Thu Mar 23 11:10:55 2017 -0700
@@ -0,0 +1,68 @@
+/*
+ * Copyright (c) 2017, 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
+ * @summary Test user threads with various stack sizes.
+ * @run main/othervm TestThreadStackSizes
+ */
+
+public class TestThreadStackSizes extends Thread {
+    static final int K = 1024;
+
+    public TestThreadStackSizes(long stackSize) {
+        super(null, null, "TestThreadStackSizes" + stackSize, stackSize);
+    }
+
+    @Override
+    public void run() {
+    }
+
+    public static void createThread(long stackSize) {
+        System.out.println("StackSize: " + stackSize);
+        try {
+            TestThreadStackSizes testThreadStackSize = new TestThreadStackSizes(stackSize);
+            testThreadStackSize.start();
+            try {
+                testThreadStackSize.join();
+            } catch (InterruptedException e) {
+                throw new Error("InterruptedException in main thread", e);
+            }
+        } catch (Error e) {  // we sometimes get OutOfMemoryError for very large stacks
+            System.out.println("Got exception for stack size " + stackSize  + ": " + e);
+        }
+    }
+
+    public static void main(String[] args) throws Error {
+        // Try every stack size from 0k to 320k.
+        for (int i = 0; i <= 320; i++) {
+            createThread(i * K);
+        }
+        // Try a few other potentially problematic stack sizes.
+        createThread(500*K);
+        createThread(501*K);
+        createThread(-1);
+        createThread(500*K*K);
+        createThread(9223372036854774784L);
+    }
+}