test/hotspot/jtreg/vmTestbase/nsk/jvmti/NativeMethodBind/nativemethbind001.java
changeset 50260 46c67f5e27c2
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/hotspot/jtreg/vmTestbase/nsk/jvmti/NativeMethodBind/nativemethbind001.java	Thu May 24 17:12:15 2018 -0700
@@ -0,0 +1,96 @@
+/*
+ * Copyright (c) 2003, 2018, 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.
+ */
+
+package nsk.jvmti.NativeMethodBind;
+
+import java.io.*;
+
+import nsk.share.*;
+import nsk.share.jvmti.*;
+
+/**
+ * This test exercises the JVMTI event <code>NativeMethodBind</code>.
+ * <br>It verifies that the event will be properly sent:
+ * <li>for the native method called for the first time
+ * <li>when the JNI RegisterNatives() is called.<p>
+ * The test works as follows. The java part invokes the native method
+ * <code>nativeMethod()</code> twice. At the first time that method
+ * registers another native method <code>anotherNativeMethod()</code> for
+ * the dummy class <code>TestedClass</code>. Registration is made through
+ * the JNI RegisterNatives() call. Being invoked at the second time, the
+ * nativeMethod() just returns.<br>
+ * In accordance with the spec, it is expected that the NativeMethodBind
+ * will be generated only one time for the nativeMethod(), and only one
+ * time for the anotherNativeMethod().
+ */
+public class nativemethbind001 {
+    static {
+        try {
+            System.loadLibrary("nativemethbind001");
+        } catch (UnsatisfiedLinkError ule) {
+            System.err.println("Could not load \"nativemethbind001\" library");
+            System.err.println("java.library.path:"
+                + System.getProperty("java.library.path"));
+            throw ule;
+        }
+    }
+
+    native void nativeMethod(boolean registerNative);
+
+    native int check();
+
+    public static void main(String[] argv) {
+        argv = nsk.share.jvmti.JVMTITest.commonInit(argv);
+
+        // produce JCK-like exit status
+        System.exit(run(argv, System.out) + Consts.JCK_STATUS_BASE);
+    }
+
+    public static int run(String argv[], PrintStream out) {
+        return new nativemethbind001().runThis(argv, out);
+    }
+
+    private int runThis(String argv[], PrintStream out) {
+        ArgumentHandler argHandler = new ArgumentHandler(argv);
+        Log log = new Log(out, argHandler);
+
+        log.display("\nCalling native methods ...\n");
+
+        // dummy method used to provoke the NativeMethodBind event
+        nativeMethod(true);
+
+        // call one more time to provoke the wrong NativeMethodBind
+        // event
+        nativeMethod(false);
+
+        return check();
+    }
+
+   /**
+    * Dummy class used only to register native method
+    * <code>anotherNativeMethod</code> with it
+    */
+    class TestedClass {
+        native void anotherNativeMethod();
+    }
+}