1 /* 2 * Copyright (c) 2024, 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 */ 23 24 import java.lang.invoke.MethodHandles; 25 import java.lang.reflect.Method; 26 import java.lang.reflect.code.interpreter.Interpreter; 27 import java.lang.runtime.CodeReflection; 28 29 import org.testng.Assert; 30 import org.testng.annotations.DataProvider; 31 import org.testng.annotations.Test; 32 33 /* 34 * @test 35 * @run testng TestThrowing 36 */ 37 38 public class TestThrowing { 39 40 @Test(dataProvider = "methods-exceptions") 41 public void testThrowsCorrectException(String methodName, Class<? extends Throwable> expectedExceptionType) throws NoSuchMethodException { 42 Method method = TestThrowing.class.getDeclaredMethod(methodName); 43 Assert.assertThrows(expectedExceptionType, () -> Interpreter.invoke(MethodHandles.lookup(), method.getCodeModel().orElseThrow())); 44 } 45 46 @DataProvider(name = "methods-exceptions") 47 static Object[][] testData() throws NoSuchMethodException { 48 return new Object[][]{ 49 {"throwsError", TestError.class}, 50 {"throwsRuntimeException", TestRuntimeException.class}, 51 {"throwsCheckedException", TestCheckedException.class}, 52 }; 53 } 54 55 public static class TestError extends Error { 56 57 } 58 59 public static class TestRuntimeException extends RuntimeException { 60 61 } 62 63 public static class TestCheckedException extends Exception { 64 65 } 66 67 @CodeReflection 68 static void throwsError() { 69 throw new TestError(); 70 } 71 72 @CodeReflection 73 static void throwsRuntimeException() { 74 throw new TestRuntimeException(); 75 } 76 77 @CodeReflection 78 static void throwsCheckedException() throws TestCheckedException { 79 throw new TestCheckedException(); 80 } 81 }