getSupportedAnnotationTypes() {
+ return instance.getSupportedAnnotationTypes();
+ }
+
+ @Override public SourceVersion getSupportedSourceVersion() {
+ return instance.getSupportedSourceVersion();
+ }
+
+ @Override public void init(ProcessingEnvironment processingEnv) {
+ instance.init(processingEnv);
+ super.init(processingEnv);
+ }
+
+ @Override public boolean process(Set annotations, RoundEnvironment roundEnv) {
+ return instance.process(annotations, roundEnv);
+ }
+
+ @Override public Iterable getCompletions(Element element, AnnotationMirror annotation, ExecutableElement member, String userText) {
+ return instance.getCompletions(element, annotation, member, userText);
+ }
+
+ private static AbstractProcessor createWrappedInstance() {
+ ClassLoader cl = Main.createShadowClassLoader();
+ try {
+ Class mc = cl.loadClass("lombok.core.AnnotationProcessor");
+ return (AbstractProcessor) mc.newInstance();
+ } catch (Throwable t) {
+ if (t instanceof Error) throw (Error) t;
+ if (t instanceof RuntimeException) throw (RuntimeException) t;
+ throw new RuntimeException(t);
+ }
+ }
+ }
+}
diff --git a/src/launch/lombok/launch/Main.java b/src/launch/lombok/launch/Main.java
new file mode 100644
index 00000000..63d97d48
--- /dev/null
+++ b/src/launch/lombok/launch/Main.java
@@ -0,0 +1,40 @@
+/*
+ * Copyright (C) 2014 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.reflect.InvocationTargetException;
+
+class Main {
+ static ClassLoader createShadowClassLoader() {
+ return new ShadowClassLoader(Main.class.getClassLoader(), "lombok");
+ }
+
+ public static void main(String[] args) throws Throwable {
+ ClassLoader cl = createShadowClassLoader();
+ Class mc = cl.loadClass("lombok.core.Main");
+ try {
+ mc.getMethod("main", String[].class).invoke(null, new Object[] {args});
+ } catch (InvocationTargetException e) {
+ throw e.getCause();
+ }
+ }
+}
diff --git a/src/launch/lombok/launch/ShadowClassLoader.java b/src/launch/lombok/launch/ShadowClassLoader.java
new file mode 100644
index 00000000..79809b2f
--- /dev/null
+++ b/src/launch/lombok/launch/ShadowClassLoader.java
@@ -0,0 +1,399 @@
+/*
+ * Copyright (C) 2014 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.io.File;
+import java.io.IOException;
+import java.io.InputStream;
+import java.net.MalformedURLException;
+import java.net.URI;
+import java.net.URL;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.Enumeration;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.Vector;
+import java.util.WeakHashMap;
+import java.util.jar.JarEntry;
+import java.util.jar.JarFile;
+
+/**
+ * The shadow classloader serves to completely hide almost all classes in a given jar file by using a different file ending.
+ *
+ * The shadow classloader also serves to link in a project as it is being developed (a 'bin' dir from an IDE for example).
+ *
+ * Classes loaded by the shadowloader use ".SCL.sclSuffix" in addition to ".class". In other words, most of the class files in a given jar end in this suffix, which
+ * serves to hide them from any tool that isn't aware of the suffix (such as IDEs generating auto-complete dialogs, and javac's classpath in general). Only shadowloader can actually
+ * load these classes.
+ *
+ * The shadowloader will pick up an alternate (priority) classpath, using normal class files, from the system property "shadow.override.sclSuffix".
+ * This shadow classpath looks just like a normal java classpath; the path separator is applied (semi-colon on windows, colon elsewhere), and entries can consist of directories,
+ * jar files, or directories ending in "/*" to pick up all jars inside it.
+ *
+ * Load order is as follows if at least one override is present:
+ *
First, if the resource is found in one of the paths stated in the shadow classpath, find that.
+ * Next, ask the parent loader, which is passed during construction of the ShadowClassLoader.
+ * Notably, this jar's contents are always skipped! (The idea of the shadow classpath is that this jar only functions as a launcher, not as a source of your actual application).
+ *
+ *
+ * If no overrides are present, the load order is as follows:
+ * First, if the resource is found in our own jar (trying ".SCL.sclSuffix" first for any resource request ending in ".class"), return that.
+ * Next, ask the parent loader.
+ *
+ *
+ * Use ShadowClassLoader to accomplish the following things:
+ * - Avoid contaminating the namespace of any project using an SCL-based jar. Autocompleters in IDEs will NOT suggest anything other than actual public API.
+ *
- Like jarjar, allows folding in dependencies such as ASM without foisting these dependencies on projects that use this jar. shadowloader obviates the need for jarjar.
+ *
- Allows an agent (which MUST be in jar form) to still load everything except this loader infrastructure from class files generated by the IDE, which should
+ * considerably help debugging, as you can now rely on the IDE's built-in auto-recompile features instead of having to run a full build everytime, and it should help
+ * with hot code replace and the like (this is what the {@code shadow.override} feature is for).
+ *
+ *
+ * Implementation note: {@code lombok.eclipse.agent.EclipseLoaderPatcher} relies on this class having no dependencies on any other class except the JVM boot class, notably
+ * including any other classes in this package, including inner classes. So, don't write closures, anonymous inner class literals,
+ * enums, or anything else that could cause the compilation of this file to produce more than 1 class file. In general, actually passing load control to this loader is a bit tricky
+ * so ensure that this class has zero dependencies on anything except java core classes.
+ */
+class ShadowClassLoader extends ClassLoader {
+ private static final String SELF_NAME = "lombok/launch/ShadowClassLoader.class";
+ private final String SELF_BASE;
+ private final File SELF_BASE_FILE;
+ private final int SELF_BASE_LENGTH;
+
+ private final List override = new ArrayList();
+ private final String sclSuffix;
+ private final List parentExclusion = new ArrayList();
+
+ /**
+ * Calls the {@link ShadowClassLoader(ClassLoader, String, String, String[]) constructor with no exclusions and the source of this class as base.
+ */
+ ShadowClassLoader(ClassLoader source, String sclSuffix) {
+ this(source, sclSuffix, null);
+ }
+
+ /**
+ * @param source The 'parent' classloader.
+ * @param sclSuffix The suffix of the shadowed class files in our own jar. For example, if this is {@code lombok}, then the class files in your jar should be {@code foo/Bar.SCL.lombok} and not {@code foo/Bar.class}.
+ * @param selfBase The (preferably absolute) path to our own jar. This jar will be searched for class/SCL.sclSuffix files.
+ * @param parentExclusion For example {@code "lombok."}; upon invocation of loadClass of this loader, the parent loader ({@code source}) will NOT be invoked if the class to be loaded begins with anything in the parent exclusion list. No exclusion is applied for getResource(s).
+ */
+ ShadowClassLoader(ClassLoader source, String sclSuffix, String selfBase, String... parentExclusion) {
+ super(source);
+ this.sclSuffix = sclSuffix;
+ if (parentExclusion != null) for (String pe : parentExclusion) {
+ pe = pe.replace(".", "/");
+ if (!pe.endsWith("/")) pe = pe + "/";
+ this.parentExclusion.add(pe);
+ }
+
+ if (selfBase != null) {
+ SELF_BASE = selfBase;
+ SELF_BASE_LENGTH = selfBase.length();
+ } else {
+ String sclClassUrl = ShadowClassLoader.class.getResource("ShadowClassLoader.class").toString();
+ if (!sclClassUrl.endsWith(SELF_NAME)) throw new InternalError("ShadowLoader can't find itself.");
+ SELF_BASE_LENGTH = sclClassUrl.length() - SELF_NAME.length();
+ SELF_BASE = sclClassUrl.substring(0, SELF_BASE_LENGTH);
+ }
+
+ if (SELF_BASE.startsWith("jar:file:") && SELF_BASE.endsWith("!/")) SELF_BASE_FILE = new File(SELF_BASE.substring(9, SELF_BASE.length() - 2));
+ else if (SELF_BASE.startsWith("file:")) SELF_BASE_FILE = new File(SELF_BASE.substring(5));
+ else SELF_BASE_FILE = new File(SELF_BASE);
+ String scl = System.getProperty("shadow.override." + sclSuffix);
+ if (scl != null && !scl.isEmpty()) {
+ for (String part : scl.split("\\s*" + (File.pathSeparatorChar == ';' ? ";" : ":") + "\\s*")) {
+ if (part.endsWith("/*") || part.endsWith(File.separator + "*")) {
+ addOverrideJarDir(part.substring(0, part.length() - 2));
+ } else {
+ addOverrideClasspathEntry(part);
+ }
+ }
+ }
+ }
+
+ private static final String EMPTY_MARKER = new String("--EMPTY JAR--");
+ private Map jarContentsCacheTrackers = new HashMap();
+ private static WeakHashMap trackerCache = new WeakHashMap();
+ private static WeakHashMap> jarContentsCache = new WeakHashMap>();
+
+ /**
+ * This cache ensures that any given jar file is only opened once in order to determine the full contents of it.
+ * We use 'trackers' to make sure that the bulk of the memory taken up by this cache (the list of strings representing the content of a jar file)
+ * gets garbage collected if all ShadowClassLoaders that ever tried to request a listing of this jar file, are garbage collected.
+ */
+ private List getOrMakeJarListing(String absolutePathToJar) {
+ List list = retrieveFromCache(absolutePathToJar);
+ synchronized (list) {
+ if (list.isEmpty()) {
+ try {
+ JarFile jf = new JarFile(absolutePathToJar);
+ try {
+ Enumeration entries = jf.entries();
+ while (entries.hasMoreElements()) {
+ JarEntry jarEntry = entries.nextElement();
+ if (!jarEntry.isDirectory()) list.add(jarEntry.getName());
+ }
+ } finally {
+ jf.close();
+ }
+ } catch (Exception ignore) {}
+ if (list.isEmpty()) list.add(EMPTY_MARKER);
+ }
+ }
+
+ if (list.size() == 1 && list.get(0) == EMPTY_MARKER) return Collections.emptyList();
+ return list;
+ }
+
+ private List retrieveFromCache(String absolutePathToJar) {
+ synchronized (trackerCache) {
+ Object tracker = jarContentsCacheTrackers.get(absolutePathToJar);
+ if (tracker != null) return jarContentsCache.get(tracker);
+
+ for (Map.Entry entry : trackerCache.entrySet()) {
+ if (entry.getValue().equals(absolutePathToJar)) {
+ tracker = entry.getKey();
+ break;
+ }
+ }
+ List result = null;
+ if (tracker != null) result = jarContentsCache.get(tracker);
+ if (result != null) return result;
+
+ tracker = new Object();
+ List list = new ArrayList();
+ jarContentsCache.put(tracker, list);
+ trackerCache.put(tracker, absolutePathToJar);
+ jarContentsCacheTrackers.put(absolutePathToJar, tracker);
+ return list;
+ }
+ }
+
+ /**
+ * Looks up {@code altName} in {@code location}, and if that isn't found, looks up {@code name}; {@code altName} can be null in which case it is skipped.
+ */
+ private URL getResourceFromLocation(String name, String altName, File location) {
+ if (location.isDirectory()) {
+ try {
+ if (altName != null) {
+ File f = new File(location, altName);
+ if (f.isFile() && f.canRead()) return f.toURI().toURL();
+ }
+
+ File f = new File(location, name);
+ if (f.isFile() && f.canRead()) return f.toURI().toURL();
+ return null;
+ } catch (MalformedURLException e) {
+ return null;
+ }
+ }
+
+ if (!location.isFile() || !location.canRead()) return null;
+
+ String absolutePath; {
+ try {
+ absolutePath = location.getCanonicalPath();
+ } catch (Exception e) {
+ absolutePath = location.getAbsolutePath();
+ }
+ }
+ List jarContents = getOrMakeJarListing(absolutePath);
+
+ try {
+ if (jarContents.contains(altName)) {
+ return new URI("jar:file:" + absolutePath + "!/" + altName).toURL();
+ }
+ } catch (Exception e) {}
+
+ try {
+ if (jarContents.contains(name)) {
+ return new URI("jar:file:" + absolutePath + "!/" + name).toURL();
+ }
+ } catch(Exception e) {}
+
+ return null;
+ }
+
+ /**
+ * Checks if the stated item is located inside the same classpath root as the jar that hosts ShadowClassLoader.class. {@code item} and {@code name} refer to the same thing.
+ */
+ private boolean inOwnBase(URL item, String name) {
+ if (item == null) return false;
+ String itemString = item.toString();
+ return (itemString.length() == SELF_BASE_LENGTH + name.length()) && SELF_BASE.regionMatches(0, itemString, 0, SELF_BASE_LENGTH);
+ }
+
+ @Override public Enumeration getResources(String name) throws IOException {
+ String altName = null;
+ if (name.endsWith(".class")) altName = name.substring(0, name.length() - 6) + ".SCL." + sclSuffix;
+
+ // Vector? Yes, we need one:
+ // * We can NOT make inner classes here (this class is loaded with special voodoo magic in eclipse, as a one off, it's not a full loader.
+ // * We need to return an enumeration.
+ // * We can't make one on the fly.
+ // * ArrayList can't make these.
+ Vector vector = new Vector();
+
+ for (File ce : override) {
+ URL url = getResourceFromLocation(name, altName, ce);
+ if (url != null) vector.add(url);
+ }
+
+ if (override.isEmpty()) {
+ URL fromSelf = getResourceFromLocation(name, altName, SELF_BASE_FILE);
+ if (fromSelf != null) vector.add(fromSelf);
+ }
+
+ Enumeration sec = super.getResources(name);
+ while (sec.hasMoreElements()) {
+ URL item = sec.nextElement();
+ if (!inOwnBase(item, name)) vector.add(item);
+ }
+
+ if (altName != null) {
+ Enumeration tern = super.getResources(altName);
+ while (tern.hasMoreElements()) {
+ URL item = tern.nextElement();
+ if (!inOwnBase(item, altName)) vector.add(item);
+ }
+ }
+
+ return vector.elements();
+ }
+
+ @Override public URL getResource(String name) {
+ return getResource_(name, false);
+ }
+
+ private URL getResource_(String name, boolean noSuper) {
+ String altName = null;
+ if (name.endsWith(".class")) altName = name.substring(0, name.length() - 6) + ".SCL." + sclSuffix;
+ for (File ce : override) {
+ URL url = getResourceFromLocation(name, altName, ce);
+ if (url != null) return url;
+ }
+
+ if (!override.isEmpty()) {
+ if (noSuper) return null;
+ if (altName != null) {
+ try {
+ URL res = getResourceSkippingSelf(altName);
+ if (res != null) return res;
+ } catch (IOException ignore) {}
+ }
+
+ try {
+ return getResourceSkippingSelf(name);
+ } catch (IOException e) {
+ return null;
+ }
+ }
+
+ URL url = getResourceFromLocation(name, altName, SELF_BASE_FILE);
+ if (url != null) return url;
+
+ if (altName != null) {
+ URL res = super.getResource(altName);
+ if (res != null && (!noSuper || inOwnBase(res, altName))) return res;
+ }
+
+ URL res = super.getResource(name);
+ if (res != null && (!noSuper || inOwnBase(res, name))) return res;
+ return null;
+ }
+
+ private boolean exclusionListMatch(String name) {
+ for (String pe : parentExclusion) {
+ if (name.startsWith(pe)) return true;
+ }
+ return false;
+ }
+
+ private URL getResourceSkippingSelf(String name) throws IOException {
+ URL candidate = super.getResource(name);
+ if (candidate == null) return null;
+ if (!inOwnBase(candidate, name)) return candidate;
+
+ Enumeration en = super.getResources(name);
+ while (en.hasMoreElements()) {
+ candidate = en.nextElement();
+ if (!inOwnBase(candidate, name)) return candidate;
+ }
+
+ return null;
+ }
+
+ @Override public Class loadClass(String name, boolean resolve) throws ClassNotFoundException {
+ {
+ Class alreadyLoaded = findLoadedClass(name);
+ if (alreadyLoaded != null) return alreadyLoaded;
+ }
+
+ String fileNameOfClass = name.replace(".", "/") + ".class";
+ URL res = getResource_(fileNameOfClass, true);
+ if (res == null) {
+ if (!exclusionListMatch(fileNameOfClass)) return super.loadClass(name, resolve);
+ throw new ClassNotFoundException(name);
+ }
+
+ byte[] b;
+ int p = 0;
+ try {
+ InputStream in = res.openStream();
+
+ try {
+ b = new byte[65536];
+ while (true) {
+ int r = in.read(b, p, b.length - p);
+ if (r == -1) break;
+ p += r;
+ if (p == b.length) {
+ byte[] nb = new byte[b.length * 2];
+ System.arraycopy(b, 0, nb, 0, p);
+ b = nb;
+ }
+ }
+ } finally {
+ in.close();
+ }
+ } catch (IOException e) {
+ throw new ClassNotFoundException("I/O exception reading class " + name, e);
+ }
+
+ Class c = defineClass(name, b, 0, p);
+ if (resolve) resolveClass(c);
+ return c;
+ }
+
+ public void addOverrideJarDir(String dir) {
+ File f = new File(dir);
+ for (File j : f.listFiles()) {
+ if (j.getName().toLowerCase().endsWith(".jar") && j.canRead() && j.isFile()) override.add(j);
+ }
+ }
+
+ public void addOverrideClasspathEntry(String entry) {
+ override.add(new File(entry));
+ }
+}