diff test/serviceability/jvmti/UnresolvedClassAgent.java @ 14648:4c76be9856fc

8035150: ShouldNotReachHere() in ConstantPool::copy_entry_to Reviewed-by: dcubed, mgronlun
author sla
date Wed, 26 Feb 2014 15:47:44 +0100
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/serviceability/jvmti/UnresolvedClassAgent.java	Wed Feb 26 15:47:44 2014 +0100
@@ -0,0 +1,69 @@
+/*
+ * Copyright (c) 2014, 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.DataInputStream;
+import java.io.File;
+import java.io.FileInputStream;
+import java.lang.instrument.ClassDefinition;
+import java.lang.instrument.Instrumentation;
+
+/*
+ * This class is present during compilation, but will be deleted before execution.
+ */
+class MyUnresolvedClass {
+    static void bar() {
+    }
+}
+
+class MyRedefinedClass {
+    static void foo() {
+        MyUnresolvedClass.bar();
+    }
+}
+
+public class UnresolvedClassAgent {
+    public static void main(String... args) {
+    }
+
+    public static void premain(String args, Instrumentation inst) throws Exception {
+        try {
+            MyRedefinedClass.foo();
+        } catch(NoClassDefFoundError err) {
+            System.out.println("NoClassDefFoundError (expected)");
+        }
+
+        File f = new File(System.getProperty("test.classes"), "MyRedefinedClass.class");
+        byte[] buf = new byte[(int)f.length()];
+        try (DataInputStream dis = new DataInputStream(new FileInputStream(f))) {
+            dis.readFully(buf);
+        }
+        ClassDefinition cd = new ClassDefinition(MyRedefinedClass.class, buf);
+        inst.redefineClasses(new ClassDefinition[] {cd});
+
+        try {
+            MyRedefinedClass.foo();
+        } catch(NoClassDefFoundError err) {
+            System.out.println("NoClassDefFoundError (expected again)");
+        }
+    }
+}