* Makefile.in: Rebuilt.

	* Makefile.am (nat_source_files): Added natVMSecurityManager,
	natResourceBundle.
	* java/util/ResourceBundle.java (Security): Removed.
	(getCallingClassLoader): Now native.
	* java/util/natResourceBundle.cc: New file.
	* java/lang/natVMSecurityManager.cc: New file.
	* java/lang/VMSecurityManager.java (getClassContext): Now native.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@59840 138bc75d-0d04-0410-961f-82ee72b054a4

4 files changed, 93 insertions, 48 deletions

diff --git a/libjava/java/lang/VMSecurityManager.java b/libjava/java/lang/VMSecurityManager.java
index fd16804b8f2..f6f0645ac75 100644
--- a/libjava/java/lang/VMSecurityManager.java
+++ b/libjava/java/lang/VMSecurityManager.java
@@ -1,6 +1,6 @@
 /*
  * java.lang.SecurityManager: part of the Java Class Libraries project.
- * Copyright (C) 1998, 2001 Free Software Foundation
+ * Copyright (C) 1998, 2001, 2002 Free Software Foundation
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
@@ -43,11 +43,7 @@ class VMSecurityManager
    ** @return an array containing all the methods on classes
    **         on the Java execution stack.
    **/
-  static Class[] getClassContext()
-  {
-    // FIXME: can't yet implement this for libgcj.
-    return new Class[0];
-  }
+  static native Class[] getClassContext();
 
   /** Get the current ClassLoader--the one nearest to the
    ** top of the stack.
diff --git a/libjava/java/lang/natVMSecurityManager.cc b/libjava/java/lang/natVMSecurityManager.cc
new file mode 100644
index 00000000000..7b88e8a4a8c
--- /dev/null
+++ b/libjava/java/lang/natVMSecurityManager.cc
@@ -0,0 +1,54 @@
+/* Copyright (C) 2002  Free Software Foundation
+
+   This file is part of libgcj.
+
+This software is copyrighted work licensed under the terms of the
+Libgcj License.  Please consult the file "LIBGCJ_LICENSE" for
+details.  */
+
+// Written by Tom Tromey <tromey@redhat.com>
+
+#include <config.h>
+
+#include <gcj/cni.h>
+#include <jvm.h>
+#include <java/lang/VMSecurityManager.h>
+#include <java/lang/SecurityManager.h>
+#include <java/lang/ClassLoader.h>
+#include <java/lang/Class.h>
+#include <gnu/gcj/runtime/StackTrace.h>
+
+JArray<jclass> *
+java::lang::VMSecurityManager::getClassContext ()
+{
+  JArray<jclass> *result = NULL;
+  gnu::gcj::runtime::StackTrace *t = new gnu::gcj::runtime::StackTrace();
+  if (t)
+    {
+      int maxlen = t->length();
+
+      int len = 0;
+      while (len < maxlen)
+	{
+	  jclass klass = t->classAt(len);
+	  if (klass != NULL && klass != &java::lang::VMSecurityManager::class$
+	      && klass != &java::lang::SecurityManager::class$)
+	    ++len;
+	}
+
+      result =
+	(JArray<jclass> *) _Jv_NewObjectArray (len, &java::lang::Class::class$,
+					       NULL);
+
+      len = 0;
+      while (len < maxlen)
+	{
+	  jclass klass = t->classAt(len);
+	  if (klass != NULL && klass != &java::lang::VMSecurityManager::class$
+	      && klass != &java::lang::SecurityManager::class$)
+	    elements(result)[len++] = klass;
+	}
+    }
+
+  return result;
+}
diff --git a/libjava/java/util/ResourceBundle.java b/libjava/java/util/ResourceBundle.java
index bfb6b306337..ecc63af2596 100644
--- a/libjava/java/util/ResourceBundle.java
+++ b/libjava/java/util/ResourceBundle.java
@@ -42,8 +42,6 @@ import java.lang.ref.Reference;
 import java.lang.ref.SoftReference;
 import java.io.InputStream;
 import java.io.IOException;
-import java.security.AccessController;
-import java.security.PrivilegedAction;
 import gnu.classpath.Configuration;
 
 /**
@@ -105,44 +103,7 @@ public abstract class ResourceBundle
    */
   private Locale locale;
 
-  /**
-   * We override SecurityManager in order to access getClassContext().
-   */
-  private static final class Security extends SecurityManager
-  {
-    /**
-     * Avoid accessor method of private constructor.
-     */
-    Security()
-    {
-    }
-
-    /**
-     * Return the ClassLoader of the class which called into this
-     * ResourceBundle, or null if it cannot be determined.
-     */
-    ClassLoader getCallingClassLoader()
-    {
-      Class[] stack = getClassContext();
-      for (int i = 0; i < stack.length; i++)
-        if (stack[i] != Security.class && stack[i] != ResourceBundle.class)
-          return stack[i].getClassLoader();
-      return null;
-    }
-  }
-
-  /** A security context for grabbing the correct class loader. */
-  private static final Security security
-    = (Security) AccessController.doPrivileged(new PrivilegedAction()
-      {
-        // This will always work since java.util classes have (all) system
-        // permissions.
-        public Object run()
-        {
-          return new Security();
-        }
-      }
-    );
+  private static native ClassLoader getCallingClassLoader();
 
   /**
    * The resource bundle cache. This is a two-level hash map: The key
@@ -256,7 +217,7 @@ public abstract class ResourceBundle
   public static final ResourceBundle getBundle(String baseName)
   {
     return getBundle(baseName, Locale.getDefault(),
-                     security.getCallingClassLoader());
+                     getCallingClassLoader());
   }
 
   /**
@@ -274,7 +235,7 @@ public abstract class ResourceBundle
   public static final ResourceBundle getBundle(String baseName,
                                                Locale locale)
   {
-    return getBundle(baseName, locale, security.getCallingClassLoader());
+    return getBundle(baseName, locale, getCallingClassLoader());
   }
 
   /**
diff --git a/libjava/java/util/natResourceBundle.cc b/libjava/java/util/natResourceBundle.cc
new file mode 100644
index 00000000000..9d142e060ef
--- /dev/null
+++ b/libjava/java/util/natResourceBundle.cc
@@ -0,0 +1,34 @@
+/* Copyright (C) 2002  Free Software Foundation
+
+   This file is part of libgcj.
+
+This software is copyrighted work licensed under the terms of the
+Libgcj License.  Please consult the file "LIBGCJ_LICENSE" for
+details.  */
+
+// Written by Tom Tromey <tromey@redhat.com>
+
+#include <config.h>
+
+#include <gcj/cni.h>
+#include <jvm.h>
+#include <java/util/ResourceBundle.h>
+#include <java/lang/SecurityManager.h>
+#include <java/lang/ClassLoader.h>
+#include <java/lang/Class.h>
+#include <gnu/gcj/runtime/StackTrace.h>
+
+java::lang::ClassLoader *
+java::util::ResourceBundle::getCallingClassLoader ()
+{
+  gnu::gcj::runtime::StackTrace *t = new gnu::gcj::runtime::StackTrace(6);
+  if (! t)
+    return NULL;
+  for (int i = 3; i < 6; ++i)
+    {
+      jclass klass = t->classAt(i);
+      if (klass != NULL)
+	return klass->getClassLoaderInternal();
+    }
+  return NULL;
+}