view test/runtime/6626217/Loader2.java @ 3237:399aa66d375e

Fixed a bug in which the valueEquals method was misused. The method does only check the equality of the node data and not full GVN equality by taking inputs and successors into account.
author Thomas Wuerthinger <thomas@wuerthinger.net>
date Wed, 27 Jul 2011 14:16:38 -0700
parents 495caa35b1b5
children
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line source

import java.io.ByteArrayInputStream;
import java.io.FileInputStream;
public class Loader2 extends ClassLoader {
  int _recur;
  public void print( String msg ) {
    for( int i=0; i<_recur; i++ )
      System.out.print("  ");
    System.out.println(">>Loader2>> "+msg);
  }

  protected Class findClass2(String name) throws ClassNotFoundException {
    print("Fetching the implementation of "+name);
    int old = _recur;
    try {
      FileInputStream fi = new FileInputStream(name+".impl2");
      byte result[] = new byte[fi.available()];
      fi.read(result);

      print("DefineClass1 on "+name);
      _recur++;
      Class clazz = defineClass(name, result, 0, result.length);
      _recur = old;
      print("Returning newly loaded class.");
      return clazz;
    } catch (Exception e) {
      _recur = old;
      print("Not found on disk.");
      // If we caught an exception, either the class was not found or
      // it was unreadable by our process.
      return null;
      //throw new ClassNotFoundException(e.toString());
    }
  }

  protected synchronized Class loadClass(String name, boolean resolve) throws ClassNotFoundException  {
    // Attempt a disk load first
    Class c = findClass2(name);
    if( c == null ) {
      // check if the class has already been loaded
      print("Checking for prior loaded class "+name);
      c = findLoadedClass(name);
      print("Letting super-loader load "+name);
      int old = _recur;
      _recur++;
      c = super.loadClass(name, false);
      _recur=old;
    }
    if (resolve) { print("Resolving class "+name); resolveClass(c); }
    print("Returning clazz "+c.getClassLoader()+":"+name);
    return c;
  }
}