jdk/test/java/lang/StackWalker/LocalsCrash.java
changeset 38347 a3fdbd11148f
child 40684 2e37c119dc2a
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/java/lang/StackWalker/LocalsCrash.java	Thu May 05 11:44:01 2016 -0700
@@ -0,0 +1,74 @@
+/*
+ * Copyright (c) 2016 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
+ * @bug 8147039
+ * @summary Test for -Xcomp crash that happened before 8147039 fix
+ * @run testng/othervm -Xcomp LocalsCrash
+ */
+
+import org.testng.annotations.*;
+import java.lang.reflect.*;
+import java.util.List;
+import java.util.stream.Collectors;
+
+public class LocalsCrash {
+    static Class<?> liveStackFrameClass;
+    static Method getStackWalker;
+
+    static {
+        try {
+            liveStackFrameClass = Class.forName("java.lang.LiveStackFrame");
+            getStackWalker = liveStackFrameClass.getMethod("getStackWalker");
+            getStackWalker.setAccessible(true);
+        } catch (Throwable t) { throw new RuntimeException(t); }
+    }
+
+    private StackWalker walker;
+
+    LocalsCrash() {
+        try {
+            walker = (StackWalker) getStackWalker.invoke(null);
+        } catch (Exception e) { throw new RuntimeException(e); }
+    }
+
+    @Test
+    public void test00() { doStackWalk(); }
+
+    @Test
+    public void test01() { doStackWalk(); }
+
+    private synchronized List<StackWalker.StackFrame> doStackWalk() {
+        try {
+            // Unused local variables will become dead
+            int x = 10;
+            char c = 'z';
+            String hi = "himom";
+            long l = 1000000L;
+            double d =  3.1415926;
+
+            return walker.walk(s -> s.collect(Collectors.toList()));
+        } catch (Exception e) { throw new RuntimeException(e); }
+    }
+}