From c8607ba782f90ef847488f0fc5bdc365c1e83317 Mon Sep 17 00:00:00 2001 From: Reinier Zwitserloot Date: Sat, 2 Apr 2022 06:12:50 +0200 Subject: [#3143] Review and update jopatai's work on the maven/ecj agent jar * Update copyright headers * Update code style (tabs, not spaces, spaces around + operator - that's about it) * Use `x.class.getResourceAsStream`, not `x.getClass().` - minor mostly irrelevant nit. * Rename and re-locate the jar itself. * 'ecj' as an alias for this command seems a bit too cavalier' removed it. * The source is in its own 'root' src dir, it doesn't really fit in the eclipse agent sources - it's more a maven agent. * Fixed a bug where a filehandle wasn't safe closed. Mostly irrelevant (JVM would quite afterwards anyway). * Slight rewording of the ecj docs. --- src/eclipseAgent/lombok/launch/AgentBootstrap.java | 92 ---------------------- 1 file changed, 92 deletions(-) delete mode 100644 src/eclipseAgent/lombok/launch/AgentBootstrap.java (limited to 'src/eclipseAgent/lombok/launch') diff --git a/src/eclipseAgent/lombok/launch/AgentBootstrap.java b/src/eclipseAgent/lombok/launch/AgentBootstrap.java deleted file mode 100644 index bbd9aa4d..00000000 --- a/src/eclipseAgent/lombok/launch/AgentBootstrap.java +++ /dev/null @@ -1,92 +0,0 @@ -/* - * Copyright (C) 2009-2022 The Project Lombok Authors. - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE - * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN - * THE SOFTWARE. - */ -package lombok.launch; - -import java.lang.instrument.ClassFileTransformer; -import java.lang.instrument.IllegalClassFormatException; -import java.lang.instrument.Instrumentation; -import java.net.URL; -import java.net.URLClassLoader; -import java.security.ProtectionDomain; -import java.util.jar.JarFile; - -/** - * This Java agent does not transform bytecode, but acts as a watcher that can figure out when it is appropriate to load - * Lombok itself within a Maven execution. It relies on several facts: - * - * Given all of the above, the transformer simply waits for AbstractCompilerMojo to be loaded, then uses the loader to - * find the path to the Lombok jar file, and finally loads the Lombok agent using reflection. - */ -public final class AgentBootstrap -{ - private static final String MAVEN_COMPILER_TRIGGER_CLASS = "org/apache/maven/plugin/compiler/AbstractCompilerMojo"; - private static final String LOMBOK_URL_IDENTIFIER = "/org/projectlombok/lombok/"; - private static final String LOMBOK_AGENT_CLASS = "lombok.launch.Agent"; - private static final byte[] NOT_TRANSFORMED = null; - - private AgentBootstrap() - {} - - /** - * Invoked when agent is added via -javaagent argument. - * - * @param agentArgs - * arguments - * @param instrumentation - * service provider - */ - public static void premain(final String agentArgs, final Instrumentation instrumentation) - { - instrumentation.addTransformer(new ClassFileTransformer() { - @Override - public byte[] transform(final ClassLoader loader, final String className, final Class cbr, final ProtectionDomain pd, - final byte[] cfb) - throws IllegalClassFormatException - { - if (MAVEN_COMPILER_TRIGGER_CLASS.equals(className)) { - for (final URL url : ((URLClassLoader)loader).getURLs()) { - if (url.getPath().contains(LOMBOK_URL_IDENTIFIER)) { - try { - instrumentation.appendToSystemClassLoaderSearch(new JarFile(url.getPath())); - AgentBootstrap.class.getClassLoader().loadClass(LOMBOK_AGENT_CLASS) - .getDeclaredMethod("premain", String.class, Instrumentation.class) - .invoke(null, agentArgs, instrumentation); - instrumentation.removeTransformer(this); - break; - } catch (final Exception e) { - //There are no appropriate loggers available at this point in time. - e.printStackTrace(System.err); - } - } - } - } - return NOT_TRANSFORMED; - } - }); - } -} -- cgit