libjava/java/io/natVMObjectInputStream.cc

   1 // natVMObjectInputStream.cc - Native part of VMObjectInputStream class.
   2
   3 /* Copyright (C) 1998, 1999, 2000, 2001, 2005, 2006, 2007
   4    Free Software Foundation
   5
   6    This file is part of libgcj.
   7
   8 This software is copyrighted work licensed under the terms of the
   9 Libgcj License.  Please consult the ObjectInputStream "LIBGCJ_LICENSE" for
  10 details.  */
  11
  12 #include <config.h>
  13
  14 #include <gcj/cni.h>
  15 #include <jvm.h>
  16 #include <gcj/method.h>
  17
  18 #include <java/io/VMObjectInputStream.h>
  19 #include <java/io/IOException.h>
  20 #include <java/lang/Class.h>
  21 #include <java/lang/reflect/Modifier.h>
  22 #include <java/lang/reflect/Method.h>
  23 #include <java/lang/ArrayIndexOutOfBoundsException.h>
  24 #include <java/lang/SecurityManager.h>
  25 #include <java/lang/reflect/Constructor.h>
  26 #include <java/lang/reflect/Method.h>
  27 #include <java-stack.h>
  28
  29 #ifdef DEBUG
  30 #include <java/lang/System.h>
  31 #include <java/io/PrintStream.h>
  32 #endif
  33
  34 jobject
  35 java::io::VMObjectInputStream::allocateObject (jclass klass, jclass,
  36   ::java::lang::reflect::Constructor *ctr)
  37 {
  38   jobject obj = NULL;
  39   using namespace java::lang::reflect;
  40
  41   try
  42     {
  43       JvAssert (klass && ! klass->isArray ());
  44       if (klass->isInterface() || Modifier::isAbstract(klass->getModifiers()))
  45         obj = NULL;
  46       else
  47         {
  48           obj = _Jv_AllocObject (klass);
  49         }
  50     }
  51   catch (jthrowable t)
  52     {
  53       return NULL;
  54     }
  55
  56   jmethodID meth = _Jv_FromReflectedConstructor (ctr);
  57
  58   // This is a bit inefficient, and a bit of a hack, since we don't
  59   // actually use the Method and since what is returned isn't
  60   // technically a Method.  We can't use Method.invoke as it looks up
  61   // the declared method.
  62   JArray<jclass> *arg_types
  63     = (JArray<jclass> *) JvNewObjectArray (0, &java::lang::Class::class$,
  64                                            NULL);
  65
  66   // We lie about this being a constructor.  If we put `true' here
  67   // then _Jv_CallAnyMethodA would try to allocate the object for us.
  68   _Jv_CallAnyMethodA (obj, JvPrimClass (void), meth, false, arg_types, NULL);
  69
  70   return obj;
  71 }