76 lines
2.9 KiB
Java
76 lines
2.9 KiB
Java
/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.0 (the "NPL"); you may not use this file except in
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* compliance with the NPL. You may obtain a copy of the NPL at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the NPL is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
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* for the specific language governing rights and limitations under the
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* NPL.
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*
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* The Initial Developer of this code under the NPL is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All Rights
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* Reserved.
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*/
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package com.netscape.jsdebugging.ifcui;
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import netscape.application.*;
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import netscape.util.*;
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import netscape.security.PrivilegeManager;
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public class JSDebuggerApplet extends FoundationApplet {
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/** This method must be implemented by the applet developer because
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* there is no way in the standard Java API for system classes (such as,
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* netscape.application) to look up an applet's class by name. The
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* static method <b>Class.forName()</b> simply looks up one level in the
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* stack and gets the ClassLoader associated with the method block of the
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* caller.
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* <p>
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* When the netscape.application classes are installed as
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* system classes, the ClassLoader is <b>null</b>. Thus, when code in
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* netscape.application calls <b>Class.forName()</b> it can only find
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* other system classes.
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* <p>
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* The solution is an API that allows code to
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* find the ClassLoader for an applet by URL, and a public API on
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* ClassLoader to ask it to load classes by name. Until those
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* enhancements can be made and distributed to all the world's Java
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* systems, applets must subclass FoundationApplet and
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* implement the following one-line method:
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* <pre>
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* public abstract Class classForName(String className)
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* throws ClassNotFoundException {
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* return Class.forName(className);
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* }
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* </pre>
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*/
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public Class classForName(String className)
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throws ClassNotFoundException {
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return Class.forName(className);
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}
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public void run() {
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try {
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//
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// At one time I needed to have this priv. early on in the loading.
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//
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// I believe it was an issue when I was explicitly loading the native
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// code from the debugger.
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//
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// This is no longer the case
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//
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// System.out.println( "first priv req start" );
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// PrivilegeManager.enablePrivilege("Debugger");
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// System.out.println( "first priv req end (success)" );
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super.run();
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} catch (Exception e) {
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System.out.println("failed to enable Priv in JSDebuggerApplet.run");
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e.printStackTrace(System.out);
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}
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}
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}
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