Initial revision

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@102075 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 86 insertions, 0 deletions

diff --git a/libjava/classpath/vm/reference/java/io/VMObjectInputStream.java b/libjava/classpath/vm/reference/java/io/VMObjectInputStream.java
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+++ b/libjava/classpath/vm/reference/java/io/VMObjectInputStream.java
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+/* ObjectInputStream.java -- Class used to read serialized objects
+   Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 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 java.io;
+
+import gnu.classpath.VMStackWalker;
+import java.lang.reflect.Constructor;
+import java.security.AccessController;
+import java.security.PrivilegedAction;
+
+final class VMObjectInputStream
+{
+  private static Class oisClass = ObjectInputStream.class;
+  private static Class vmoisClass = VMObjectInputStream.class;
+
+  // PrivilegedAction needed for Class.getClassLoader()
+  private static PrivilegedAction loaderAction = new PrivilegedAction()
+    {
+      public Object run()
+      {
+	Class[] ctx = VMStackWalker.getClassContext();
+	for (int i = 0; i < ctx.length; i++)
+	  {
+	    ClassLoader cl = ctx[i].getClassLoader();
+	    if (cl != null)
+	      return cl;
+	  }
+	return null;
+      }
+    };
+
+  /**
+   * Returns the first user defined class loader on the call stack, or
+   * null when no non-null class loader was found.
+   */
+  static ClassLoader currentClassLoader()
+  {
+    return (ClassLoader) AccessController.doPrivileged(loaderAction);
+  }
+
+  /**
+   * Allocates a new Object of type clazz but without running the
+   * default constructor on it. It then calls the given constructor on
+   * it. The given constructor method comes from the constr_clazz
+   * which is a super class of the given clazz.
+   */
+  static native Object allocateObject(Class clazz, Class constr_clazz,
+				      Constructor constructor)
+    throws InstantiationException;
+}