hotspot/test/compiler/jsr292/InvokerGC.java
changeset 37289 9989add27bf4
child 38152 80e5da81fb2c
child 37773 e5b3e9732c3c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/hotspot/test/compiler/jsr292/InvokerGC.java	Tue Apr 05 01:46:40 2016 -0700
@@ -0,0 +1,75 @@
+/*
+ * 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 8067247
+ * @library /test/lib /compiler/whitebox /
+ * @run main/bootclasspath -Xcomp -Xbatch
+ *      -XX:CompileCommand=compileonly,InvokerGC::test
+ *      -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI
+ *      InvokerGC
+ */
+
+import java.lang.invoke.*;
+import sun.hotspot.WhiteBox;
+
+public class InvokerGC {
+    static final WhiteBox WB = WhiteBox.getWhiteBox();
+
+    static MethodHandle mh;
+    static {
+        try {
+            mh = MethodHandles.lookup().findStatic(InvokerGC.class, "dummy", MethodType.methodType(void.class));
+        } catch (Exception e) {
+            throw new Error(e);
+        }
+    }
+
+    static void dummy() {}
+
+    static void test() {
+        try {
+            mh.invoke();
+        } catch (Throwable e) {
+            throw new Error(e);
+        }
+    }
+
+    public static void main(String[] args) throws Throwable {
+        mh.invoke(); // Pre-generate an invoker for ()V signature
+
+        test(); // trigger method compilation
+        test();
+
+        WB.fullGC(); // WB.fullGC has always clear softref policy.
+
+        test();
+
+        WB.clearInlineCaches(true); // Preserve static stubs.
+
+        test(); // Trigger call site re-resolution. Invoker LambdaForm should stay the same.
+
+        System.out.println("TEST PASSED");
+    }
+}