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-rw-r--r--src/main/javassist/Loader.java229
1 files changed, 117 insertions, 112 deletions
diff --git a/src/main/javassist/Loader.java b/src/main/javassist/Loader.java
index 948d3de9..06b30d25 100644
--- a/src/main/javassist/Loader.java
+++ b/src/main/javassist/Loader.java
@@ -1,28 +1,17 @@
/*
- * This file is part of the Javassist toolkit.
+ * Javassist, a Java-bytecode translator toolkit.
+ * Copyright (C) 1999-2003 Shigeru Chiba. All Rights Reserved.
*
- * The contents of this file are subject to the Mozilla Public License
- * Version 1.1 (the "License"); you may not use this file except in
- * compliance with the License. You may obtain a copy of the License at
- * either http://www.mozilla.org/MPL/.
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
*
- * Software distributed under the License is distributed on an "AS IS"
- * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
- * the License for the specific language governing rights and limitations
- * under the License.
- *
- * The Original Code is Javassist.
- *
- * The Initial Developer of the Original Code is Shigeru Chiba. Portions
- * created by Shigeru Chiba are Copyright (C) 1999-2003 Shigeru Chiba.
- * All Rights Reserved.
- *
- * Contributor(s):
- *
- * The development of this software is supported in part by the PRESTO
- * program (Sakigake Kenkyu 21) of Japan Science and Technology Corporation.
+ * This library 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
+ * Lesser General Public License for more details.
*/
-
package javassist;
import java.io.*;
@@ -137,8 +126,8 @@ import java.util.Vector;
* @see javassist.Translator
*/
public class Loader extends ClassLoader {
- private Hashtable notDefinedHere; // must be atomic.
- private Vector notDefinedPackages; // must be atomic.
+ private Hashtable notDefinedHere; // must be atomic.
+ private Vector notDefinedPackages; // must be atomic.
private ClassPool source;
/**
@@ -158,19 +147,35 @@ public class Loader extends ClassLoader {
* Creates a new class loader.
*/
public Loader() {
- this(null);
+ this(null);
}
/**
* Creates a new class loader.
*
- * @param cp the source of class files.
+ * @param cp the source of class files.
*/
public Loader(ClassPool cp) {
- notDefinedHere = new Hashtable();
- notDefinedPackages = new Vector();
- source = cp;
- delegateLoadingOf("javassist.Loader");
+ init(cp);
+ }
+
+ /**
+ * Creates a new class loader
+ * using the specified parent class loader for delegation.
+ *
+ * @param parent the parent class loader.
+ * @param cp the source of class files.
+ */
+ public Loader(ClassLoader parent, ClassPool cp) {
+ super(parent);
+ init(cp);
+ }
+
+ private void init(ClassPool cp) {
+ notDefinedHere = new Hashtable();
+ notDefinedPackages = new Vector();
+ source = cp;
+ delegateLoadingOf("javassist.Loader");
}
/**
@@ -182,17 +187,17 @@ public class Loader extends ClassLoader {
* in that package and the sub packages are delegated.
*/
public void delegateLoadingOf(String classname) {
- if (classname.endsWith("."))
- notDefinedPackages.addElement(classname);
- else
- notDefinedHere.put(classname, this);
+ if (classname.endsWith("."))
+ notDefinedPackages.addElement(classname);
+ else
+ notDefinedHere.put(classname, this);
}
/**
* Sets the soruce <code>ClassPool</code>.
*/
public void setClassPool(ClassPool cp) {
- source = cp;
+ source = cp;
}
/**
@@ -201,70 +206,70 @@ public class Loader extends ClassLoader {
*
* <p>This method calls <code>run()</code>.
*
- * @param args[0] class name to be loaded.
- * @param args[1-n] parameters passed to <code>main()</code>.
+ * @param args[0] class name to be loaded.
+ * @param args[1-n] parameters passed to <code>main()</code>.
*
* @see javassist.Loader#run(String[])
*/
public static void main(String[] args) throws Throwable {
- Loader cl = new Loader();
- cl.run(args);
+ Loader cl = new Loader();
+ cl.run(args);
}
/**
* Loads a class and calls <code>main()</code> in that class.
*
- * @param args[0] the name of the loaded class.
- * @param args[1-n] parameters passed to <code>main()</code>.
+ * @param args[0] the name of the loaded class.
+ * @param args[1-n] parameters passed to <code>main()</code>.
*/
public void run(String[] args) throws Throwable {
- int n = args.length - 1;
- if (n >= 0) {
- String[] args2 = new String[n];
- for (int i = 0; i < n; ++i)
- args2[i] = args[i + 1];
+ int n = args.length - 1;
+ if (n >= 0) {
+ String[] args2 = new String[n];
+ for (int i = 0; i < n; ++i)
+ args2[i] = args[i + 1];
- run(args[0], args2);
- }
+ run(args[0], args2);
+ }
}
/**
* Loads a class and calls <code>main()</code> in that class.
*
- * @param classname the loaded class.
- * @param args parameters passed to <code>main()</code>.
+ * @param classname the loaded class.
+ * @param args parameters passed to <code>main()</code>.
*/
public void run(String classname, String[] args) throws Throwable {
- Class c = loadClass(classname);
- try {
- c.getDeclaredMethod("main", new Class[] { String[].class })
- .invoke(null, new Object[] { args });
- }
- catch (java.lang.reflect.InvocationTargetException e) {
- throw e.getTargetException();
- }
+ Class c = loadClass(classname);
+ try {
+ c.getDeclaredMethod("main", new Class[] { String[].class })
+ .invoke(null, new Object[] { args });
+ }
+ catch (java.lang.reflect.InvocationTargetException e) {
+ throw e.getTargetException();
+ }
}
/**
* Requests the class loader to load a class.
*/
protected Class loadClass(String name, boolean resolve)
- throws ClassFormatError, ClassNotFoundException
+ throws ClassFormatError, ClassNotFoundException
{
- Class c = findLoadedClass(name);
- if (c == null)
- c = loadClassByDelegation(name);
+ Class c = findLoadedClass(name);
+ if (c == null)
+ c = loadClassByDelegation(name);
- if (c == null)
- c = findClass(name);
+ if (c == null)
+ c = findClass(name);
- if (c == null)
- c = delegateToParent(name);
+ if (c == null)
+ c = delegateToParent(name);
- if (resolve)
- resolveClass(c);
+ if (resolve)
+ resolveClass(c);
- return c;
+ return c;
}
/**
@@ -275,66 +280,66 @@ public class Loader extends ClassLoader {
* <code>Loader</code>.
*/
protected Class findClass(String name) {
- byte[] classfile;
- try {
- if (source != null)
- classfile = source.write(name);
- else {
- String jarname = "/" + name.replace('.', '/') + ".class";
- InputStream in = this.getClass().getResourceAsStream(jarname);
+ byte[] classfile;
+ try {
+ if (source != null)
+ classfile = source.write(name);
+ else {
+ String jarname = "/" + name.replace('.', '/') + ".class";
+ InputStream in = this.getClass().getResourceAsStream(jarname);
- classfile = ClassPoolTail.readStream(in);
- }
- }
- catch (Exception e) {
- return null;
- }
+ classfile = ClassPoolTail.readStream(in);
+ }
+ }
+ catch (Exception e) {
+ return null;
+ }
- return defineClass(name, classfile, 0, classfile.length);
+ return defineClass(name, classfile, 0, classfile.length);
}
private Class loadClassByDelegation(String name)
- throws ClassNotFoundException
+ throws ClassNotFoundException
{
- /* The swing components must be loaded by a system
- * class loader.
- * javax.swing.UIManager loads a (concrete) subclass
- * of LookAndFeel by a system class loader and cast
- * an instance of the class to LookAndFeel for
- * (maybe) a security reason. To avoid failure of
- * type conversion, LookAndFeel must not be loaded
- * by this class loader.
- */
+ /* The swing components must be loaded by a system
+ * class loader.
+ * javax.swing.UIManager loads a (concrete) subclass
+ * of LookAndFeel by a system class loader and cast
+ * an instance of the class to LookAndFeel for
+ * (maybe) a security reason. To avoid failure of
+ * type conversion, LookAndFeel must not be loaded
+ * by this class loader.
+ */
- Class c = null;
- if (doDelegation)
- if (name.startsWith("java.") || name.startsWith("javax.")
- || name.startsWith("sun.") || name.startsWith("com.sun.")
- || notDelegated(name))
- c = delegateToParent(name);
+ Class c = null;
+ if (doDelegation)
+ if (name.startsWith("java.") || name.startsWith("javax.")
+ || name.startsWith("sun.") || name.startsWith("com.sun.")
+ || notDelegated(name))
+ c = delegateToParent(name);
- return c;
+ return c;
}
private boolean notDelegated(String name) {
- if (notDefinedHere.get(name) != null)
- return true;
+ if (notDefinedHere.get(name) != null)
+ return true;
- int n = notDefinedPackages.size();
- for (int i = 0; i < n; ++i)
- if (name.startsWith((String)notDefinedPackages.elementAt(i)))
- return true;
+ int n = notDefinedPackages.size();
+ for (int i = 0; i < n; ++i)
+ if (name.startsWith((String)notDefinedPackages.elementAt(i)))
+ return true;
- return false;
+ return false;
}
private Class delegateToParent(String classname)
- throws ClassNotFoundException
+ throws ClassNotFoundException
{
- ClassLoader cl = getParent();
- if (cl != null)
- return cl.loadClass(classname);
- else
- return findSystemClass(classname);
+ ClassLoader cl = getParent();
+ if (cl != null)
+ return cl.loadClass(classname);
+ else
+ return findSystemClass(classname);
}
}
generated by cgit v1.2.3 (git 2.39.1) at 2025-01-18 15:08:06 +0000