jdk8-mips64-public/hotspot: test/runtime/invokedynamic/BootstrapMethodErrorTest.java@6cbff0651f1a

     1 /*

     2  * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.

     8  *

     9  * This code is distributed in the hope that it will be useful, but WITHOUT

    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    12  * version 2 for more details (a copy is included in the LICENSE file that

    13  * accompanied this code).

    14  *

    15  * You should have received a copy of the GNU General Public License version

    16  * 2 along with this work; if not, write to the Free Software Foundation,

    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    18  *

    19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    20  * or visit www.oracle.com if you need additional information or have any

    21  * questions.

    22  */

    24 /*

    25  * @test

    26  * @bug 8051045

    27  * @summary Test that exceptions from invokedynamic are wrapped in BootstrapMethodError

    28  * @modules java.base/jdk.internal.org.objectweb.asm

    29  * @run main BootstrapMethodErrorTest

    30  */

    32 import java.lang.reflect.Method;

    33 import java.lang.invoke.MethodHandle;

    34 import java.lang.invoke.MethodHandles;

    35 import static java.lang.invoke.MethodHandles.*;

    36 import static java.lang.invoke.MethodType.*;

    38 import jdk.internal.org.objectweb.asm.ClassWriter;

    39 import jdk.internal.org.objectweb.asm.Handle;

    40 import jdk.internal.org.objectweb.asm.MethodVisitor;

    41 import jdk.internal.org.objectweb.asm.Opcodes;

    43 public class BootstrapMethodErrorTest extends ClassLoader implements Opcodes {

    45   @Override

    46   public Class findClass(String name) throws ClassNotFoundException {

    47     byte[] b;

    48     try {

    49       b = loadClassData(name);

    50     } catch (Throwable th) {

    51       throw new ClassNotFoundException("Loading error", th);

    52     }

    53     return defineClass(name, b, 0, b.length);

    54   }

    56   private byte[] loadClassData(String name) throws Exception {

    57     ClassWriter cw = new ClassWriter(0);

    58     MethodVisitor mv;

    60     if (name.equals("C")) {

    61       cw.visit(52, ACC_SUPER | ACC_PUBLIC, "C", null, "java/lang/Object", null);

    62       {

    63         mv = cw.visitMethod(ACC_PRIVATE | ACC_STATIC, "m", "()V", null, null);

    64         mv.visitCode();

    65         mv.visitInsn(RETURN);

    66         mv.visitMaxs(0, 1);

    67         mv.visitEnd();

    68       }

    69       cw.visitEnd();

    70       return cw.toByteArray();

    71     } else if (name.equals("Exec")) {

    72       cw.visit(52, ACC_SUPER | ACC_PUBLIC, "Exec", null, "java/lang/Object", null);

    73       {

    74         mv = cw.visitMethod(ACC_PUBLIC | ACC_STATIC, "invokeRef", "()V", null, null);

    75         mv.visitCode();

    76         Handle h = new Handle(H_INVOKESTATIC, "C", "m", "()V");

    77         mv.visitInvokeDynamicInsn("C", "()V", h);

    78         mv.visitInsn(RETURN);

    79         mv.visitMaxs(0, 0);

    80         mv.visitEnd();

    81       }

    82       cw.visitEnd();

    83       return cw.toByteArray();

    84     }

    85     return null;

    86   }

    88   public static void main(String[] args) throws ClassNotFoundException, IllegalAccessException, NoSuchMethodException {

    89     new BootstrapMethodErrorTest().test();

    90   }

    92   public void test() throws ClassNotFoundException, IllegalAccessException, NoSuchMethodException {

    93     Class.forName("C", true, this);

    94     Class<?> exec = Class.forName("Exec", true, this);

    96     try {

    97       exec.getMethod("invokeRef").invoke(null);

    98     } catch (Throwable e) {

    99       Throwable c = e.getCause();

   100       if (c == null) {

   101         throw new RuntimeException(

   102             "Expected BootstrapMethodError wrapped in an InvocationTargetException but it wasn't wrapped", e);

   103       } else if (c instanceof BootstrapMethodError) {

   104         // Only way to pass test, all else should throw

   105         return;

   106       } else {

   107         throw new RuntimeException(

   108             "Expected BootstrapMethodError but got another Error: "

   109             + c.getClass().getName(),

   110             c);

   111       }

   112     }

   113     throw new RuntimeException("Expected BootstrapMethodError but no Error at all was thrown");

   114   }

   115 }

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