d5b0558fda
2006-06-01 Bryce McKinlay <mckinlay@redhat.com> * gnu/java/lang/MainThread (run): Revert exception chaining change. From-SVN: r114303
138 lines
4.3 KiB
Java
138 lines
4.3 KiB
Java
/* gnu.java.lang.MainThread
|
|
Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005
|
|
Free Software Foundation, Inc.
|
|
|
|
This file is part of GNU Classpath.
|
|
|
|
GNU Classpath is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 2, or (at your option)
|
|
any later version.
|
|
|
|
GNU Classpath 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
|
|
General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with GNU Classpath; see the file COPYING. If not, write to the
|
|
Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
|
|
02110-1301 USA.
|
|
|
|
Linking this library statically or dynamically with other modules is
|
|
making a combined work based on this library. Thus, the terms and
|
|
conditions of the GNU General Public License cover the whole
|
|
combination.
|
|
|
|
As a special exception, the copyright holders of this library give you
|
|
permission to link this library with independent modules to produce an
|
|
executable, regardless of the license terms of these independent
|
|
modules, and to copy and distribute the resulting executable under
|
|
terms of your choice, provided that you also meet, for each linked
|
|
independent module, the terms and conditions of the license of that
|
|
module. An independent module is a module which is not derived from
|
|
or based on this library. If you modify this library, you may extend
|
|
this exception to your version of the library, but you are not
|
|
obligated to do so. If you do not wish to do so, delete this
|
|
exception statement from your version. */
|
|
|
|
|
|
package gnu.java.lang;
|
|
|
|
import java.io.File;
|
|
import java.util.jar.Attributes;
|
|
import java.util.jar.JarFile;
|
|
|
|
/**
|
|
* MainThread is a Thread which uses the main() method of some class.
|
|
*
|
|
* @author John Keiser
|
|
* @author Tom Tromey (tromey@redhat.com)
|
|
*/
|
|
final class MainThread extends Thread
|
|
{
|
|
// If the user links statically then we need to ensure that these
|
|
// classes are linked in. Otherwise bootstrapping fails. These
|
|
// classes are only referred to via Class.forName(), so we add an
|
|
// explicit mention of them here.
|
|
static final Class Kcert = java.security.cert.Certificate.class;
|
|
static final Class Kfile = gnu.java.net.protocol.file.Handler.class;
|
|
static final Class Khttp = gnu.java.net.protocol.http.Handler.class;
|
|
static final Class Kjar = gnu.java.net.protocol.jar.Handler.class;
|
|
static final Class Klocale = gnu.java.locale.LocaleInformation.class;
|
|
static final Class Kcalendar = gnu.java.locale.Calendar.class;
|
|
|
|
// Private data.
|
|
private Class klass;
|
|
private String klass_name;
|
|
private String[] args;
|
|
private boolean is_jar;
|
|
|
|
public MainThread(Class k, String[] args)
|
|
{
|
|
super(null, null, "main");
|
|
klass = k;
|
|
this.args = args;
|
|
}
|
|
|
|
public MainThread(String classname, String[] args, boolean is_jar)
|
|
{
|
|
super (null, null, "main");
|
|
klass_name = classname;
|
|
this.args = args;
|
|
this.is_jar = is_jar;
|
|
}
|
|
|
|
public void run()
|
|
{
|
|
if (is_jar)
|
|
klass_name = getMain(klass_name);
|
|
|
|
if (klass == null)
|
|
{
|
|
try
|
|
{
|
|
ClassLoader cl = ClassLoader.getSystemClassLoader();
|
|
// Permit main class name to be specified in file-system format.
|
|
klass_name = klass_name.replace(File.separatorChar, '.');
|
|
klass = cl.loadClass(klass_name);
|
|
}
|
|
catch (ClassNotFoundException x)
|
|
{
|
|
NoClassDefFoundError ncdfe = new NoClassDefFoundError(klass_name);
|
|
ncdfe.initCause(x);
|
|
throw ncdfe;
|
|
}
|
|
}
|
|
|
|
call_main();
|
|
}
|
|
|
|
private String getMain(String name)
|
|
{
|
|
String mainName = null;
|
|
try
|
|
{
|
|
JarFile j = new JarFile(name);
|
|
Attributes a = j.getManifest().getMainAttributes();
|
|
mainName = a.getValue(Attributes.Name.MAIN_CLASS);
|
|
}
|
|
catch (Exception e)
|
|
{
|
|
// Ignore.
|
|
}
|
|
|
|
if (mainName == null)
|
|
{
|
|
System.err.println("Failed to load Main-Class manifest attribute from "
|
|
+ name);
|
|
System.exit(1);
|
|
}
|
|
return mainName;
|
|
}
|
|
|
|
// Note: this function name is known to the stack tracing code.
|
|
// You shouldn't change this without also updating stacktrace.cc.
|
|
private native void call_main();
|
|
}
|