/* * Copyright (c) 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. * */ /* * @test * @summary test that the right exceptions get thrown for bad value type * class files. * @compile cfpTests.jcod * @run main/othervm -XX:+EnableValhalla BadValueTypes */ public class BadValueTypes { public static void runTest(String test_name, String message) throws Exception { System.out.println("Testing: " + test_name); try { Class newClass = Class.forName(test_name); } catch (java.lang.ClassFormatError e) { if (!e.getMessage().contains(message)) { throw new RuntimeException( "Wrong ClassFormatError: " + e.getMessage()); } } } public static void main(String[] args) throws Exception { // Test that ACC_VALUE with ACC_ABSTRACT is illegal. runTest("ValueAbstract", "Illegal class modifiers in class ValueAbstract"); // Test that ACC_VALUE with ACC_ENUM is illegal. runTest("ValueEnum", "Illegal class modifiers in class ValueEnum"); // Test that value type fields must be final. runTest("ValueFieldNotFinal", "Illegal field modifiers in class ValueFieldNotFinal"); // Test that arrays cannot have ACC_FLATTENABLE set. runTest("ValueFlatArray", "ACC_FLATTENABLE cannot be specified for an array"); // Test that a value type cannot have a method named init. /* TBD: uncomment when javac stops generating () methods for value types. runTest("ValueInitMethod", "Value Type cannot have a method named "); */ // Test that ACC_VALUE with ACC_INTERFACE is illegal. runTest("ValueInterface", "Illegal class modifiers in class ValueInterface"); // Test that value type instance methods cannot be synchronized. runTest("ValueMethodSynch", "Method instanceMethod in class ValueMethodSynch has illegal modifiers"); runTest("ValueSuperClass", "Value type must have java.lang.Object as superclass"); // Test that ClassCircularityError gets detected for instance fields. System.out.println("Testing ClassCircularityError for instance fields"); try { Class newClass = Class.forName("Circ"); throw new RuntimeException( "java.lang.ClassCircularityError exception not thrown!"); } catch (java.lang.ClassCircularityError e) { if (!e.getMessage().contains("Circ")) { throw new RuntimeException( "Wrong ClassCircularityError: " + e.getMessage()); } } // Test that ClassCircularityError gets detected for static fields. System.out.println("Testing ClassCircularityError for static fields"); try { Class newClass = Class.forName("CircStaticB"); throw new RuntimeException( "java.lang.ClassCircularityError exception not thrown!"); } catch (java.lang.ClassCircularityError e) { if (!e.getMessage().contains("CircStatic")) { throw new RuntimeException( "Wrong ClassCircularityError: " + e.getMessage()); } } runTest("ValueCloneable", "Value Types do not support Cloneable"); } }