| /* |
| * Copyright (c) 2016, 2017, 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. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * 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. |
| */ |
| |
| /* |
| * Create class file using ASM, slightly modified the ASMifier output |
| */ |
| |
| |
| |
| import java.io.File; |
| import java.io.FileOutputStream; |
| import java.io.IOException; |
| import jdk.internal.org.objectweb.asm.*; |
| |
| |
| public class ClassFileGenerator { |
| |
| public static void main(String... args) throws Exception { |
| classFileWriter("AnnotationWithVoidReturn.class", AnnotationWithVoidReturnDump.dump()); |
| classFileWriter("AnnotationWithParameter.class", AnnotationWithParameterDump.dump()); |
| classFileWriter("AnnotationWithExtraInterface.class", AnnotationWithExtraInterfaceDump.dump()); |
| classFileWriter("AnnotationWithException.class", AnnotationWithExceptionDump.dump()); |
| classFileWriter("AnnotationWithHashCode.class", AnnotationWithHashCodeDump.dump()); |
| classFileWriter("AnnotationWithDefaultMember.class", AnnotationWithDefaultMemberDump.dump()); |
| classFileWriter("AnnotationWithoutAnnotationAccessModifier.class", |
| AnnotationWithoutAnnotationAccessModifierDump.dump()); |
| classFileWriter("HolderX.class", HolderXDump.dump()); |
| } |
| |
| private static void classFileWriter(String name, byte[] contents) throws IOException { |
| try (FileOutputStream fos = new FileOutputStream(new File(System.getProperty("test.classes"), |
| name))) { |
| fos.write(contents); |
| } |
| } |
| |
| /* Following code creates equivalent classfile, which is not allowed by javac: |
| |
| @Retention(RetentionPolicy.RUNTIME) |
| public @interface AnnotationWithVoidReturn { |
| void m() default 1; |
| } |
| |
| */ |
| |
| private static class AnnotationWithVoidReturnDump implements Opcodes { |
| public static byte[] dump() throws Exception { |
| ClassWriter cw = new ClassWriter(0); |
| MethodVisitor mv; |
| AnnotationVisitor av0; |
| |
| cw.visit(52, ACC_PUBLIC + ACC_ANNOTATION + ACC_ABSTRACT + ACC_INTERFACE, |
| "AnnotationWithVoidReturn", null, |
| "java/lang/Object", new String[]{"java/lang/annotation/Annotation"}); |
| |
| { |
| av0 = cw.visitAnnotation("Ljava/lang/annotation/Retention;", true); |
| av0.visitEnum("value", "Ljava/lang/annotation/RetentionPolicy;", |
| "RUNTIME"); |
| av0.visitEnd(); |
| } |
| { |
| mv = cw.visitMethod(ACC_PUBLIC + ACC_ABSTRACT, "m", "()V", null, null); |
| mv.visitEnd(); |
| } |
| { |
| av0 = mv.visitAnnotationDefault(); |
| av0.visit(null, new Integer(1)); |
| av0.visitEnd(); |
| } |
| cw.visitEnd(); |
| |
| return cw.toByteArray(); |
| |
| } |
| } |
| |
| /* Following code creates equivalent classfile, which is not allowed by javac: |
| |
| @Retention(RetentionPolicy.RUNTIME) |
| public @interface AnnotationWithParameter { |
| int m(int x) default -1; |
| } |
| |
| */ |
| |
| private static class AnnotationWithParameterDump implements Opcodes { |
| public static byte[] dump() throws Exception { |
| |
| ClassWriter cw = new ClassWriter(0); |
| MethodVisitor mv; |
| AnnotationVisitor av0; |
| |
| cw.visit(52, ACC_PUBLIC + ACC_ANNOTATION + ACC_ABSTRACT + ACC_INTERFACE, |
| "AnnotationWithParameter", null, |
| "java/lang/Object", new String[]{"java/lang/annotation/Annotation"}); |
| |
| { |
| av0 = cw.visitAnnotation("Ljava/lang/annotation/Retention;", true); |
| av0.visitEnum("value", "Ljava/lang/annotation/RetentionPolicy;", |
| "RUNTIME"); |
| av0.visitEnd(); |
| } |
| { |
| mv = cw.visitMethod(ACC_PUBLIC + ACC_ABSTRACT, |
| "badValue", |
| "(I)I", // Bad method with a parameter |
| null, null); |
| mv.visitEnd(); |
| } |
| { |
| av0 = mv.visitAnnotationDefault(); |
| av0.visit(null, new Integer(-1)); |
| av0.visitEnd(); |
| } |
| cw.visitEnd(); |
| |
| return cw.toByteArray(); |
| } |
| } |
| |
| /* Following code creates equivalent classfile, which is not allowed by javac: |
| |
| @Retention(RetentionPolicy.RUNTIME) |
| public @interface AnnotationWithExtraInterface extends java.io.Serializable { |
| int m() default 1; |
| } |
| |
| */ |
| |
| private static class AnnotationWithExtraInterfaceDump implements Opcodes { |
| public static byte[] dump() throws Exception { |
| ClassWriter cw = new ClassWriter(0); |
| MethodVisitor mv; |
| AnnotationVisitor av0; |
| |
| cw.visit(52, ACC_PUBLIC + ACC_ANNOTATION + ACC_ABSTRACT + ACC_INTERFACE, |
| "AnnotationWithExtraInterface", null, |
| "java/lang/Object", new String[]{"java/lang/annotation/Annotation", |
| "java/io/Serializable"}); |
| |
| { |
| av0 = cw.visitAnnotation("Ljava/lang/annotation/Retention;", true); |
| av0.visitEnum("value", "Ljava/lang/annotation/RetentionPolicy;", |
| "RUNTIME"); |
| av0.visitEnd(); |
| } |
| { |
| mv = cw.visitMethod(ACC_PUBLIC + ACC_ABSTRACT, "m", "()I", null, null); |
| mv.visitEnd(); |
| } |
| { |
| av0 = mv.visitAnnotationDefault(); |
| av0.visit(null, new Integer(1)); |
| av0.visitEnd(); |
| } |
| cw.visitEnd(); |
| |
| return cw.toByteArray(); |
| } |
| } |
| |
| /* Following code creates equivalent classfile, which is not allowed by javac: |
| |
| @Retention(RetentionPolicy.RUNTIME) |
| public @interface AnnotationWithException { |
| int m() throws Exception default 1; |
| } |
| |
| */ |
| |
| private static class AnnotationWithExceptionDump implements Opcodes { |
| public static byte[] dump() throws Exception { |
| ClassWriter cw = new ClassWriter(0); |
| MethodVisitor mv; |
| AnnotationVisitor av0; |
| |
| cw.visit(52, ACC_PUBLIC + ACC_ANNOTATION + ACC_ABSTRACT + ACC_INTERFACE, |
| "AnnotationWithException", null, |
| "java/lang/Object", new String[]{"java/lang/annotation/Annotation"}); |
| |
| { |
| av0 = cw.visitAnnotation("Ljava/lang/annotation/Retention;", true); |
| av0.visitEnum("value", "Ljava/lang/annotation/RetentionPolicy;", |
| "RUNTIME"); |
| av0.visitEnd(); |
| } |
| { |
| mv = cw.visitMethod(ACC_PUBLIC + ACC_ABSTRACT, "m", "()I", null, |
| new String[] {"java/lang/Exception"}); |
| mv.visitEnd(); |
| } |
| { |
| av0 = mv.visitAnnotationDefault(); |
| av0.visit(null, new Integer(1)); |
| av0.visitEnd(); |
| } |
| cw.visitEnd(); |
| |
| return cw.toByteArray(); |
| } |
| } |
| |
| /* Following code creates equivalent classfile, which is not allowed by javac: |
| |
| @Retention(RetentionPolicy.RUNTIME) |
| public @interface AnnotationWithHashCode { |
| int hashCode() default 1; |
| } |
| |
| */ |
| |
| private static class AnnotationWithHashCodeDump implements Opcodes { |
| public static byte[] dump() throws Exception { |
| ClassWriter cw = new ClassWriter(0); |
| MethodVisitor mv; |
| AnnotationVisitor av0; |
| |
| cw.visit(52, ACC_PUBLIC + ACC_ANNOTATION + ACC_ABSTRACT + ACC_INTERFACE, |
| "AnnotationWithHashCode", null, |
| "java/lang/Object", new String[]{"java/lang/annotation/Annotation"}); |
| |
| { |
| av0 = cw.visitAnnotation("Ljava/lang/annotation/Retention;", true); |
| av0.visitEnum("value", "Ljava/lang/annotation/RetentionPolicy;", |
| "RUNTIME"); |
| av0.visitEnd(); |
| } |
| { |
| mv = cw.visitMethod(ACC_PUBLIC + ACC_ABSTRACT, "hashCode", "()I", null, null); |
| mv.visitEnd(); |
| } |
| { |
| av0 = mv.visitAnnotationDefault(); |
| av0.visit(null, new Integer(1)); |
| av0.visitEnd(); |
| } |
| cw.visitEnd(); |
| |
| return cw.toByteArray(); |
| } |
| } |
| |
| /* Following code creates equivalent classfile, which is not allowed by javac: |
| |
| @Retention(RetentionPolicy.RUNTIME) |
| public @interface AnnotationWithDefaultMember { |
| int m() default 1; |
| default int d() default 2 { return 2; } |
| } |
| |
| */ |
| |
| private static class AnnotationWithDefaultMemberDump implements Opcodes { |
| public static byte[] dump() throws Exception { |
| ClassWriter cw = new ClassWriter(0); |
| MethodVisitor mv, dv; |
| AnnotationVisitor av0; |
| |
| cw.visit(52, ACC_PUBLIC + ACC_ANNOTATION + ACC_ABSTRACT + ACC_INTERFACE, |
| "AnnotationWithDefaultMember", null, |
| "java/lang/Object", new String[]{"java/lang/annotation/Annotation"}); |
| |
| { |
| av0 = cw.visitAnnotation("Ljava/lang/annotation/Retention;", true); |
| av0.visitEnum("value", "Ljava/lang/annotation/RetentionPolicy;", |
| "RUNTIME"); |
| av0.visitEnd(); |
| } |
| { |
| mv = cw.visitMethod(ACC_PUBLIC + ACC_ABSTRACT, "m", "()I", null, null); |
| mv.visitEnd(); |
| } |
| { |
| av0 = mv.visitAnnotationDefault(); |
| av0.visit(null, new Integer(1)); |
| av0.visitEnd(); |
| } |
| { |
| dv = cw.visitMethod(ACC_PUBLIC, "d", "()I", null, null); |
| dv.visitMaxs(1, 1); |
| dv.visitCode(); |
| dv.visitInsn(Opcodes.ICONST_2); |
| dv.visitInsn(Opcodes.IRETURN); |
| dv.visitEnd(); |
| } |
| { |
| av0 = dv.visitAnnotationDefault(); |
| av0.visit(null, new Integer(2)); |
| av0.visitEnd(); |
| } |
| cw.visitEnd(); |
| |
| return cw.toByteArray(); |
| } |
| } |
| |
| /* Following code creates equivalent classfile, which is not allowed by javac: |
| |
| @Retention(RetentionPolicy.RUNTIME) |
| public interface AnnotationWithoutAnnotationAccessModifier extends java.lang.annotation.Annotation { |
| int m() default 1; |
| } |
| |
| */ |
| |
| private static class AnnotationWithoutAnnotationAccessModifierDump implements Opcodes { |
| public static byte[] dump() throws Exception { |
| ClassWriter cw = new ClassWriter(0); |
| MethodVisitor mv; |
| AnnotationVisitor av0; |
| |
| cw.visit(52, ACC_PUBLIC + /* ACC_ANNOTATION +*/ ACC_ABSTRACT + ACC_INTERFACE, |
| "AnnotationWithoutAnnotationAccessModifier", null, |
| "java/lang/Object", new String[]{"java/lang/annotation/Annotation"}); |
| |
| { |
| av0 = cw.visitAnnotation("Ljava/lang/annotation/Retention;", true); |
| av0.visitEnum("value", "Ljava/lang/annotation/RetentionPolicy;", |
| "RUNTIME"); |
| av0.visitEnd(); |
| } |
| { |
| mv = cw.visitMethod(ACC_PUBLIC + ACC_ABSTRACT, "m", "()I", null, null); |
| mv.visitEnd(); |
| } |
| { |
| av0 = mv.visitAnnotationDefault(); |
| av0.visit(null, new Integer(1)); |
| av0.visitEnd(); |
| } |
| cw.visitEnd(); |
| |
| return cw.toByteArray(); |
| } |
| } |
| |
| /* Following code creates equivalent classfile, which is not allowed by javac |
| since AnnotationWithoutAnnotationAccessModifier is not marked with ACC_ANNOTATION: |
| |
| @GoodAnnotation |
| @AnnotationWithoutAnnotationAccessModifier |
| public interface HolderX { |
| } |
| |
| */ |
| |
| private static class HolderXDump implements Opcodes { |
| public static byte[] dump() throws Exception { |
| ClassWriter cw = new ClassWriter(0); |
| |
| cw.visit(52, ACC_PUBLIC + ACC_ABSTRACT + ACC_INTERFACE, |
| "HolderX", null, |
| "java/lang/Object", new String[0]); |
| |
| { |
| AnnotationVisitor av0; |
| av0 = cw.visitAnnotation("LGoodAnnotation;", true); |
| av0.visitEnd(); |
| av0 = cw.visitAnnotation("LAnnotationWithoutAnnotationAccessModifier;", true); |
| av0.visitEnd(); |
| } |
| cw.visitEnd(); |
| |
| return cw.toByteArray(); |
| } |
| } |
| } |