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JDK 11 java.instrument.jmod - Instrument Module
JDK 11 java.instrument.jmod is the JMOD file for JDK 11 Instrument module.
JDK 11 Instrument module compiled class files are stored in \fyicenter\jdk-11.0.1\jmods\java.instrument.jmod.
JDK 11 Instrument module compiled class files are also linked and stored in the \fyicenter\jdk-11.0.1\lib\modules JImage file.
JDK 11 Instrument module source code files are stored in \fyicenter\jdk-11.0.1\lib\src.zip\java.instrument.
You can click and view the content of each source code file in the list below.
✍: FYIcenter
⏎ java/lang/instrument/ClassFileTransformer.java
/* * Copyright (c) 2003, 2016, Oracle and/or its affiliates. All rights reserved. * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms. * * * * * * * * * * * * * * * * * * * * */ package java.lang.instrument; import java.security.AccessController; import java.security.PrivilegedAction; import java.security.ProtectionDomain; /* * Copyright 2003 Wily Technology, Inc. */ /** * A transformer of class files. An agent registers an implementation of this * interface using the {@link Instrumentation#addTransformer addTransformer} * method so that the transformer's {@link * ClassFileTransformer#transform(Module,ClassLoader,String,Class,ProtectionDomain,byte[]) * transform} method is invoked when classes are loaded, * {@link Instrumentation#redefineClasses redefined}, or * {@link Instrumentation#retransformClasses retransformed}. The implementation * should override one of the {@code transform} methods defined here. * Transformers are invoked before the class is defined by the Java virtual * machine. * * <P> * There are two kinds of transformers, determined by the <code>canRetransform</code> * parameter of * {@link java.lang.instrument.Instrumentation#addTransformer(ClassFileTransformer,boolean)}: * <ul> * <li><i>retransformation capable</i> transformers that were added with * <code>canRetransform</code> as true * </li> * <li><i>retransformation incapable</i> transformers that were added with * <code>canRetransform</code> as false or where added with * {@link java.lang.instrument.Instrumentation#addTransformer(ClassFileTransformer)} * </li> * </ul> * * <P> * Once a transformer has been registered with * {@link java.lang.instrument.Instrumentation#addTransformer(ClassFileTransformer,boolean) * addTransformer}, * the transformer will be called for every new class definition and every class redefinition. * Retransformation capable transformers will also be called on every class retransformation. * The request for a new class definition is made with * {@link java.lang.ClassLoader#defineClass ClassLoader.defineClass} * or its native equivalents. * The request for a class redefinition is made with * {@link java.lang.instrument.Instrumentation#redefineClasses Instrumentation.redefineClasses} * or its native equivalents. * The request for a class retransformation is made with * {@link java.lang.instrument.Instrumentation#retransformClasses Instrumentation.retransformClasses} * or its native equivalents. * The transformer is called during the processing of the request, before the class file bytes * have been verified or applied. * When there are multiple transformers, transformations are composed by chaining the * <code>transform</code> calls. * That is, the byte array returned by one call to <code>transform</code> becomes the input * (via the <code>classfileBuffer</code> parameter) to the next call. * * <P> * Transformations are applied in the following order: * <ul> * <li>Retransformation incapable transformers * </li> * <li>Retransformation incapable native transformers * </li> * <li>Retransformation capable transformers * </li> * <li>Retransformation capable native transformers * </li> * </ul> * * <P> * For retransformations, the retransformation incapable transformers are not * called, instead the result of the previous transformation is reused. * In all other cases, this method is called. * Within each of these groupings, transformers are called in the order registered. * Native transformers are provided by the <code>ClassFileLoadHook</code> event * in the Java Virtual Machine Tool Interface). * * <P> * The input (via the <code>classfileBuffer</code> parameter) to the first * transformer is: * <ul> * <li>for new class definition, * the bytes passed to <code>ClassLoader.defineClass</code> * </li> * <li>for class redefinition, * <code>definitions.getDefinitionClassFile()</code> where * <code>definitions</code> is the parameter to * {@link java.lang.instrument.Instrumentation#redefineClasses * Instrumentation.redefineClasses} * </li> * <li>for class retransformation, * the bytes passed to the new class definition or, if redefined, * the last redefinition, with all transformations made by retransformation * incapable transformers reapplied automatically and unaltered; * for details see * {@link java.lang.instrument.Instrumentation#retransformClasses * Instrumentation.retransformClasses} * </li> * </ul> * * <P> * If the implementing method determines that no transformations are needed, * it should return <code>null</code>. * Otherwise, it should create a new <code>byte[]</code> array, * copy the input <code>classfileBuffer</code> into it, * along with all desired transformations, and return the new array. * The input <code>classfileBuffer</code> must not be modified. * * <P> * In the retransform and redefine cases, * the transformer must support the redefinition semantics: * if a class that the transformer changed during initial definition is later * retransformed or redefined, the * transformer must insure that the second class output class file is a legal * redefinition of the first output class file. * * <P> * If the transformer throws an exception (which it doesn't catch), * subsequent transformers will still be called and the load, redefine * or retransform will still be attempted. * Thus, throwing an exception has the same effect as returning <code>null</code>. * To prevent unexpected behavior when unchecked exceptions are generated * in transformer code, a transformer can catch <code>Throwable</code>. * If the transformer believes the <code>classFileBuffer</code> does not * represent a validly formatted class file, it should throw * an <code>IllegalClassFormatException</code>; * while this has the same effect as returning null. it facilitates the * logging or debugging of format corruptions. * * <P> * Note the term <i>class file</i> is used as defined in section 3.1 of * <cite>The Java™ Virtual Machine Specification</cite>, to mean a * sequence of bytes in class file format, whether or not they reside in a * file. * * @see java.lang.instrument.Instrumentation * @since 1.5 */ public interface ClassFileTransformer { /** * Transforms the given class file and returns a new replacement class file. * This method is invoked when the {@link Module Module} bearing {@link * ClassFileTransformer#transform(Module,ClassLoader,String,Class,ProtectionDomain,byte[]) * transform} is not overridden. * * @implSpec The default implementation returns null. * * @param loader the defining loader of the class to be transformed, * may be {@code null} if the bootstrap loader * @param className the name of the class in the internal form of fully * qualified class and interface names as defined in * <i>The Java Virtual Machine Specification</i>. * For example, <code>"java/util/List"</code>. * @param classBeingRedefined if this is triggered by a redefine or retransform, * the class being redefined or retransformed; * if this is a class load, {@code null} * @param protectionDomain the protection domain of the class being defined or redefined * @param classfileBuffer the input byte buffer in class file format - must not be modified * * @throws IllegalClassFormatException * if the input does not represent a well-formed class file * @return a well-formed class file buffer (the result of the transform), * or {@code null} if no transform is performed * * @revised 9 * @spec JPMS */ default byte[] transform( ClassLoader loader, String className, Class<?> classBeingRedefined, ProtectionDomain protectionDomain, byte[] classfileBuffer) throws IllegalClassFormatException { return null; } /** * Transforms the given class file and returns a new replacement class file. * * @implSpec The default implementation of this method invokes the * {@link #transform(ClassLoader,String,Class,ProtectionDomain,byte[]) transform} * method. * * @param module the module of the class to be transformed * @param loader the defining loader of the class to be transformed, * may be {@code null} if the bootstrap loader * @param className the name of the class in the internal form of fully * qualified class and interface names as defined in * <i>The Java Virtual Machine Specification</i>. * For example, <code>"java/util/List"</code>. * @param classBeingRedefined if this is triggered by a redefine or retransform, * the class being redefined or retransformed; * if this is a class load, {@code null} * @param protectionDomain the protection domain of the class being defined or redefined * @param classfileBuffer the input byte buffer in class file format - must not be modified * * @throws IllegalClassFormatException * if the input does not represent a well-formed class file * @return a well-formed class file buffer (the result of the transform), * or {@code null} if no transform is performed * * @since 9 * @spec JPMS */ default byte[] transform( Module module, ClassLoader loader, String className, Class<?> classBeingRedefined, ProtectionDomain protectionDomain, byte[] classfileBuffer) throws IllegalClassFormatException { // invoke the legacy transform method return transform(loader, className, classBeingRedefined, protectionDomain, classfileBuffer); } }
⏎ java/lang/instrument/ClassFileTransformer.java
Or download all of them as a single archive file:
File name: java.instrument-11.0.1-src.zip File size: 26158 bytes Release date: 2018-11-04 Download
⇒ JDK 11 java.logging.jmod - Logging Module
2020-04-30, 6004👍, 0💬
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