undefect. CWE-407 — 63 sites patched across 27 ecosystems
Authors: russell@unturf.com · brackishbert@gmail.com · foxhop.net · TimeHexOn.com Patches, unit tests, benchmarks, whitepaper, and outreach briefs. Public domain — no copyright claimed. Use freely.
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test/jdk/java/lang/annotation/ClassFileGenerator.java
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285
test/jdk/java/lang/annotation/ClassFileGenerator.java
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/*
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* Copyright (c) 2016, 2024, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* Create class file using Class-File API, slightly modified the ASMifier output
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*/
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import java.io.File;
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import java.io.FileOutputStream;
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import java.io.IOException;
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import java.io.Serializable;
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import java.lang.annotation.Retention;
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import java.lang.annotation.RetentionPolicy;
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import java.lang.classfile.Annotation;
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import java.lang.classfile.AnnotationElement;
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import java.lang.classfile.AnnotationValue;
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import java.lang.classfile.ClassFile;
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import java.lang.classfile.attribute.AnnotationDefaultAttribute;
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import java.lang.classfile.attribute.ExceptionsAttribute;
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import java.lang.classfile.attribute.RuntimeVisibleAnnotationsAttribute;
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import java.lang.constant.ClassDesc;
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import java.lang.constant.MethodTypeDesc;
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import java.lang.reflect.AccessFlag;
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import static java.lang.classfile.ClassFile.ACC_ABSTRACT;
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import static java.lang.classfile.ClassFile.ACC_PUBLIC;
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import static java.lang.constant.ConstantDescs.CD_Exception;
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import static java.lang.constant.ConstantDescs.CD_Object;
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import static java.lang.constant.ConstantDescs.CD_int;
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import static java.lang.constant.ConstantDescs.MTD_void;
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import static java.lang.reflect.AccessFlag.ABSTRACT;
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import static java.lang.reflect.AccessFlag.INTERFACE;
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import static java.lang.reflect.AccessFlag.PUBLIC;
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public class ClassFileGenerator {
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private static final ClassDesc CD_Annotation = java.lang.annotation.Annotation.class.describeConstable().orElseThrow();
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private static final ClassDesc CD_Retention = Retention.class.describeConstable().orElseThrow();
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public static void main(String... args) throws Exception {
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classFileWriter("AnnotationWithVoidReturn.class", AnnotationWithVoidReturnDump.dump());
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classFileWriter("AnnotationWithParameter.class", AnnotationWithParameterDump.dump());
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classFileWriter("AnnotationWithExtraInterface.class", AnnotationWithExtraInterfaceDump.dump());
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classFileWriter("AnnotationWithException.class", AnnotationWithExceptionDump.dump());
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classFileWriter("AnnotationWithHashCode.class", AnnotationWithHashCodeDump.dump());
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classFileWriter("AnnotationWithDefaultMember.class", AnnotationWithDefaultMemberDump.dump());
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classFileWriter("AnnotationWithoutAnnotationAccessModifier.class",
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AnnotationWithoutAnnotationAccessModifierDump.dump());
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classFileWriter("HolderX.class", HolderXDump.dump());
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}
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private static void classFileWriter(String name, byte[] contents) throws IOException {
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try (FileOutputStream fos = new FileOutputStream(new File(System.getProperty("test.classes"),
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name))) {
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fos.write(contents);
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}
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}
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/* Following code creates equivalent classfile, which is not allowed by javac:
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@Retention(RetentionPolicy.RUNTIME)
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public @interface AnnotationWithVoidReturn {
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void m() default 1;
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}
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*/
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private static class AnnotationWithVoidReturnDump {
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public static byte[] dump() {
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return ClassFile.of().build(ClassDesc.of("AnnotationWithVoidReturn"), clb -> {
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clb.withSuperclass(CD_Object);
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clb.withInterfaceSymbols(CD_Annotation);
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clb.withFlags(PUBLIC, AccessFlag.ANNOTATION, ABSTRACT, AccessFlag.INTERFACE);
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clb.with(RuntimeVisibleAnnotationsAttribute.of(
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Annotation.of(CD_Retention, AnnotationElement.of("value",
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AnnotationValue.of(RetentionPolicy.RUNTIME)))
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));
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clb.withMethod("m", MTD_void, ACC_PUBLIC | ACC_ABSTRACT,
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mb -> mb.with(AnnotationDefaultAttribute.of(AnnotationValue.ofInt(1))));
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});
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}
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}
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/* Following code creates equivalent classfile, which is not allowed by javac:
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@Retention(RetentionPolicy.RUNTIME)
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public @interface AnnotationWithParameter {
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int m(int x) default -1;
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}
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*/
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private static class AnnotationWithParameterDump {
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public static byte[] dump() {
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return ClassFile.of().build(ClassDesc.of("AnnotationWithParameter"), clb -> {
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clb.withSuperclass(CD_Object);
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clb.withInterfaceSymbols(CD_Annotation);
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clb.withFlags(PUBLIC, AccessFlag.ANNOTATION, ABSTRACT, AccessFlag.INTERFACE);
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clb.with(RuntimeVisibleAnnotationsAttribute.of(
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Annotation.of(CD_Retention, AnnotationElement.of("value",
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AnnotationValue.of(RetentionPolicy.RUNTIME)))
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));
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clb.withMethod("m", MethodTypeDesc.of(CD_int, CD_int), ACC_PUBLIC | ACC_ABSTRACT,
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mb -> mb.with(AnnotationDefaultAttribute.of(AnnotationValue.ofInt(-1))));
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});
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}
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}
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/* Following code creates equivalent classfile, which is not allowed by javac:
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@Retention(RetentionPolicy.RUNTIME)
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public @interface AnnotationWithExtraInterface extends java.io.Serializable {
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int m() default 1;
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}
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*/
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private static class AnnotationWithExtraInterfaceDump {
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public static byte[] dump() {
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return ClassFile.of().build(ClassDesc.of("AnnotationWithExtraInterface"), clb -> {
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clb.withSuperclass(CD_Object);
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clb.withInterfaceSymbols(CD_Annotation, Serializable.class.describeConstable().orElseThrow());
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clb.withFlags(PUBLIC, AccessFlag.ANNOTATION, ABSTRACT, AccessFlag.INTERFACE);
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clb.with(RuntimeVisibleAnnotationsAttribute.of(
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Annotation.of(CD_Retention, AnnotationElement.of("value",
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AnnotationValue.of(RetentionPolicy.RUNTIME)))
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));
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clb.withMethod("m", MethodTypeDesc.of(CD_int), ACC_PUBLIC | ACC_ABSTRACT,
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mb -> mb.with(AnnotationDefaultAttribute.of(AnnotationValue.ofInt(1))));
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});
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}
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}
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/* Following code creates equivalent classfile, which is not allowed by javac:
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@Retention(RetentionPolicy.RUNTIME)
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public @interface AnnotationWithException {
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int m() throws Exception default 1;
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}
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*/
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private static class AnnotationWithExceptionDump {
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public static byte[] dump() {
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return ClassFile.of().build(ClassDesc.of("AnnotationWithException"), clb -> {
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clb.withSuperclass(CD_Object);
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clb.withInterfaceSymbols(CD_Annotation);
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clb.withFlags(PUBLIC, AccessFlag.ANNOTATION, ABSTRACT, AccessFlag.INTERFACE);
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clb.with(RuntimeVisibleAnnotationsAttribute.of(
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Annotation.of(CD_Retention, AnnotationElement.of("value",
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AnnotationValue.of(RetentionPolicy.RUNTIME)))
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));
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clb.withMethod("m", MethodTypeDesc.of(CD_int), ACC_PUBLIC | ACC_ABSTRACT, mb -> {
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mb.with(AnnotationDefaultAttribute.of(AnnotationValue.ofInt(1)));
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mb.with(ExceptionsAttribute.ofSymbols(CD_Exception));
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});
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});
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}
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}
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/* Following code creates equivalent classfile, which is not allowed by javac:
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@Retention(RetentionPolicy.RUNTIME)
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public @interface AnnotationWithHashCode {
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int hashCode() default 1;
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}
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*/
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private static class AnnotationWithHashCodeDump {
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public static byte[] dump() {
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return ClassFile.of().build(ClassDesc.of("AnnotationWithHashCode"), clb -> {
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clb.withSuperclass(CD_Object);
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clb.withInterfaceSymbols(CD_Annotation);
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clb.withFlags(PUBLIC, AccessFlag.ANNOTATION, ABSTRACT, AccessFlag.INTERFACE);
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clb.with(RuntimeVisibleAnnotationsAttribute.of(
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Annotation.of(CD_Retention, AnnotationElement.of("value",
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AnnotationValue.of(RetentionPolicy.RUNTIME)))
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));
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clb.withMethod("hashCode", MethodTypeDesc.of(CD_int), ACC_PUBLIC | ACC_ABSTRACT,
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mb -> mb.with(AnnotationDefaultAttribute.of(AnnotationValue.ofInt(1))));
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});
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}
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}
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/* Following code creates equivalent classfile, which is not allowed by javac:
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@Retention(RetentionPolicy.RUNTIME)
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public @interface AnnotationWithDefaultMember {
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int m() default 1;
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default int d() default 2 { return 2; }
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}
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*/
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private static class AnnotationWithDefaultMemberDump {
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public static byte[] dump() throws Exception {
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return ClassFile.of().build(ClassDesc.of("AnnotationWithDefaultMember"), clb -> {
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clb.withSuperclass(CD_Object);
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clb.withInterfaceSymbols(CD_Annotation);
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clb.withFlags(PUBLIC, AccessFlag.ANNOTATION, ABSTRACT, AccessFlag.INTERFACE);
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clb.with(RuntimeVisibleAnnotationsAttribute.of(
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Annotation.of(CD_Retention, AnnotationElement.of("value",
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AnnotationValue.of(RetentionPolicy.RUNTIME)))
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));
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clb.withMethod("m", MethodTypeDesc.of(CD_int), ACC_PUBLIC | ACC_ABSTRACT,
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mb -> mb.with(AnnotationDefaultAttribute.of(AnnotationValue.ofInt(1))));
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clb.withMethod("d", MethodTypeDesc.of(CD_int), ACC_PUBLIC, mb -> {
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mb.with(AnnotationDefaultAttribute.of(AnnotationValue.ofInt(2)));
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mb.withCode(cob -> {
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cob.iconst_2();
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cob.ireturn();
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});
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});
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});
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}
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}
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/* Following code creates equivalent classfile, which is not allowed by javac:
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@Retention(RetentionPolicy.RUNTIME)
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public interface AnnotationWithoutAnnotationAccessModifier extends java.lang.annotation.Annotation {
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int m() default 1;
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}
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*/
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private static class AnnotationWithoutAnnotationAccessModifierDump {
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public static byte[] dump() {
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return ClassFile.of().build(ClassDesc.of("AnnotationWithoutAnnotationAccessModifier"), clb -> {
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clb.withSuperclass(CD_Object);
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clb.withInterfaceSymbols(CD_Annotation);
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clb.withFlags(PUBLIC, /*AccessFlag.ANNOTATION,*/ ABSTRACT, AccessFlag.INTERFACE);
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clb.with(RuntimeVisibleAnnotationsAttribute.of(
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Annotation.of(CD_Retention, AnnotationElement.of("value",
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AnnotationValue.of(RetentionPolicy.RUNTIME)))
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));
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clb.withMethod("m", MethodTypeDesc.of(CD_int), ACC_PUBLIC | ACC_ABSTRACT,
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mb -> mb.with(AnnotationDefaultAttribute.of(AnnotationValue.ofInt(1))));
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});
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}
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}
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/* Following code creates equivalent classfile, which is not allowed by javac
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since AnnotationWithoutAnnotationAccessModifier is not marked with ACC_ANNOTATION:
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@GoodAnnotation
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@AnnotationWithoutAnnotationAccessModifier
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public interface HolderX {
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}
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*/
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private static class HolderXDump {
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public static byte[] dump() {
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return ClassFile.of().build(ClassDesc.of("HolderX"), clb -> {
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clb.withSuperclass(CD_Object);
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clb.withFlags(PUBLIC, ABSTRACT, INTERFACE);
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clb.with(RuntimeVisibleAnnotationsAttribute.of(
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Annotation.of(ClassDesc.of("GoodAnnotation")),
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Annotation.of(ClassDesc.of("ClassFileGenerator$AnnotationWithoutAnnotationAccessModifier"))
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));
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});
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}
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}
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}
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