Imported GNU Classpath 0.92

2006-08-14  Mark Wielaard  <mark@klomp.org>

       Imported GNU Classpath 0.92
       * HACKING: Add more importing hints. Update automake version
       requirement.

       * configure.ac (gconf-peer): New enable AC argument.
       Add --disable-gconf-peer and --enable-default-preferences-peer
       to classpath configure when gconf is disabled.
       * scripts/makemake.tcl: Set gnu/java/util/prefs/gconf and
       gnu/java/awt/dnd/peer/gtk to bc. Classify
       gnu/java/security/Configuration.java as generated source file.

       * gnu/java/lang/management/VMGarbageCollectorMXBeanImpl.java,
       gnu/java/lang/management/VMMemoryPoolMXBeanImpl.java,
       gnu/java/lang/management/VMClassLoadingMXBeanImpl.java,
       gnu/java/lang/management/VMRuntimeMXBeanImpl.java,
       gnu/java/lang/management/VMMemoryManagerMXBeanImpl.java,
       gnu/java/lang/management/VMThreadMXBeanImpl.java,
       gnu/java/lang/management/VMMemoryMXBeanImpl.java,
       gnu/java/lang/management/VMCompilationMXBeanImpl.java: New VM stub
       classes.
       * java/lang/management/VMManagementFactory.java: Likewise.
       * java/net/VMURLConnection.java: Likewise.
       * gnu/java/nio/VMChannel.java: Likewise.

       * java/lang/Thread.java (getState): Add stub implementation.
       * java/lang/Class.java (isEnum): Likewise.
       * java/lang/Class.h (isEnum): Likewise.

       * gnu/awt/xlib/XToolkit.java (getClasspathTextLayoutPeer): Removed.

       * javax/naming/spi/NamingManager.java: New override for StackWalker
       functionality.

       * configure, sources.am, Makefile.in, gcj/Makefile.in,
       include/Makefile.in, testsuite/Makefile.in: Regenerated.

From-SVN: r116139

libjava/classpath/gnu/java/net/loader/RemoteURLLoader.java

@@ -0,0 +1,101 @@
+/* RemoteURLLoader.java -- a URLLoader for "remote" objects
+   Copyright (C) 2006 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.net.loader;
+
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.net.HttpURLConnection;
+import java.net.URL;
+import java.net.URLClassLoader;
+import java.net.URLConnection;
+import java.net.URLStreamHandlerFactory;
+
+/**
+ * Loader for remote directories.
+ */
+public final class RemoteURLLoader extends URLLoader
+{
+  private final String protocol;
+
+  public RemoteURLLoader(URLClassLoader classloader,
+                         URLStreamHandlerCache cache,
+                         URLStreamHandlerFactory factory,
+                         URL url)
+  {
+    super(classloader, cache, factory, url);
+    protocol = url.getProtocol();
+  }
+
+  /**
+   * Get a remote resource.
+   * Returns null if no such resource exists.
+   */
+  public Resource getResource(String name)
+  {
+    try
+      {
+        URL url = new URL(baseURL, name, cache.get(factory, protocol));
+        URLConnection connection = url.openConnection();
+
+        // Open the connection and check the stream
+        // just to be sure it exists.
+        int length = connection.getContentLength();
+        InputStream stream = connection.getInputStream();
+
+        // We can do some extra checking if it is a http request
+        if (connection instanceof HttpURLConnection)
+          {
+            int response =
+              ((HttpURLConnection) connection).getResponseCode();
+            if (response / 100 != 2)
+              return null;
+          }
+
+        if (stream != null)
+          return new RemoteResource(this, name, url, stream, length);
+        else
+          return null;
+      }
+    catch (IOException ioe)
+      {
+        return null;
+      }
+  }
+}