diff -r 000000000000 -r 959103a6100f test/tools/javac/defaultMethods/TestDefaultBody.java --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/test/tools/javac/defaultMethods/TestDefaultBody.java Wed Apr 27 01:34:52 2016 +0800 @@ -0,0 +1,123 @@ +/* + * Copyright (c) 2011, 2013, 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 + * @bug 7192246 + * @summary check that code attributed for default methods is correctly generated + */ + +import com.sun.tools.classfile.AccessFlags; +import com.sun.tools.classfile.Attribute; +import com.sun.tools.classfile.ClassFile; +import com.sun.tools.classfile.ConstantPool.*; +import com.sun.tools.classfile.Code_attribute; +import com.sun.tools.classfile.Instruction; +import com.sun.tools.classfile.Method; + +import com.sun.tools.classfile.Opcode; +import java.io.*; + +public class TestDefaultBody { + + interface TestInterface { + int no_default(int i); + default int yes_default(int i) { return impl(this, i); } + } + + static int impl(TestInterface ti, int i) { return 0; } + + static final String TARGET_CLASS_NAME = "TestDefaultBody"; + static final String TARGET_NAME = "impl"; + static final String TARGET_TYPE = "(LTestDefaultBody$TestInterface;I)I"; + static final String SUBTEST_NAME = TestInterface.class.getName() + ".class"; + static final String TEST_METHOD_NAME = "yes_default"; + + public static void main(String... args) throws Exception { + new TestDefaultBody().run(); + } + + public void run() throws Exception { + String workDir = System.getProperty("test.classes"); + File compiledTest = new File(workDir, SUBTEST_NAME); + verifyDefaultBody(compiledTest); + } + + void verifyDefaultBody(File f) { + System.err.println("verify: " + f); + try { + ClassFile cf = ClassFile.read(f); + Method testMethod = null; + Code_attribute codeAttr = null; + for (Method m : cf.methods) { + codeAttr = (Code_attribute)m.attributes.get(Attribute.Code); + String mname = m.getName(cf.constant_pool); + if (mname.equals(TEST_METHOD_NAME)) { + testMethod = m; + break; + } else { + codeAttr = null; + } + } + if (testMethod == null) { + throw new Error("Test method not found"); + } + if (testMethod.access_flags.is(AccessFlags.ACC_ABSTRACT)) { + throw new Error("Test method is abstract"); + } + if (codeAttr == null) { + throw new Error("Code attribute in test method not found"); + } + + boolean found = false; + for (Instruction instr : codeAttr.getInstructions()) { + if (instr.getOpcode() == Opcode.INVOKESTATIC) { + found = true; + int pc_index = instr.getShort(1); + CONSTANT_Methodref_info mref = (CONSTANT_Methodref_info)cf.constant_pool.get(pc_index); + String className = mref.getClassName(); + String targetName = mref.getNameAndTypeInfo().getName(); + String targetType = mref.getNameAndTypeInfo().getType(); + + if (!className.equals(TARGET_CLASS_NAME)) { + throw new Error("unexpected class in default method body " + className); + } + if (!targetName.equals(TARGET_NAME)) { + throw new Error("unexpected method name in default method body " + targetName); + } + if (!targetType.equals(TARGET_TYPE)) { + throw new Error("unexpected method type in default method body " + targetType); + } + break; + } + } + + if (!found) { + throw new Error("no invokestatic found in default method body"); + } + } catch (Exception e) { + e.printStackTrace(); + throw new Error("error reading " + f +": " + e); + } + } +}