pmorch/HelloWorld.class

## HelloWorld.class

      
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## HelloWorld.java
import java.applet.Applet;
import java.awt.Graphics;

public class HelloWorld extends Applet {
    public void paint(Graphics g) {
        g.drawString("Hello world!", 50, 25);
    }
}

## index.html
<!DOCTYPE HTML>
<!--

    This demonstrates how resizing an applet from javascript cause 100% CPU
    usage indefinitely. I.e. the applet hangs. See ./HelloWorld.java for the
    applet's source.

    The steps I took to reproduce this:

    * Boot from xubuntu-11.10-desktop-i386.iso LiveDVD
    * sudo apt-get install icedtea-plugin
    * Start Firefox
    * Visit this index.html
    * Open top in a terminal
    * See that java takes up 100% CPU

-->
<html>
<head>
    <title>openJDK goes 100%</title>
    <style type="text/css">
        body {
            background-color: red;
        }
        applet {
            /* Initial values - setTimeout sets new ones */
            height: 100px;
            width: 100px;
        }
    </style>
    <script type="text/javascript"><!--
        function resizeApplet(dim) {
            document.getElementById('applet').style.height = dim + "px"
            document.getElementById('applet').style.width = dim + "px"
        }
        for (var i = 1 ; i <= 4 ; i++) {
            (function (local_i) {
                setTimeout(function () {
                    resizeApplet((local_i+1)*100);
                }, local_i*1000);
            })(i);
        }
    --></script>
</head>
<body>
    <applet ID="applet" CODE = "HelloWorld.class"></applet>
</body>
</html>
	import java.applet.Applet;
	import java.awt.Graphics;

	public class HelloWorld extends Applet {
	public void paint(Graphics g) {
	g.drawString("Hello world!", 50, 25);
	}
	}
	<!DOCTYPE HTML>
	<!--

	This demonstrates how resizing an applet from javascript cause 100% CPU
	usage indefinitely. I.e. the applet hangs. See ./HelloWorld.java for the
	applet's source.

	The steps I took to reproduce this:

	* Boot from xubuntu-11.10-desktop-i386.iso LiveDVD
	* sudo apt-get install icedtea-plugin
	* Start Firefox
	* Visit this index.html
	* Open top in a terminal
	* See that java takes up 100% CPU

	-->
	<html>
	<head>
	<title>openJDK goes 100%</title>
	<style type="text/css">
	body {
	background-color: red;
	}
	applet {
	/* Initial values - setTimeout sets new ones */
	height: 100px;
	width: 100px;
	}
	</style>
	<script type="text/javascript"><!--
	function resizeApplet(dim) {
	document.getElementById('applet').style.height = dim + "px"
	document.getElementById('applet').style.width = dim + "px"
	}
	for (var i = 1 ; i <= 4 ; i++) {
	(function (local_i) {
	setTimeout(function () {
	resizeApplet((local_i+1)*100);
	}, local_i*1000);
	})(i);
	}
	--></script>
	</head>
	<body>
	<applet ID="applet" CODE = "HelloWorld.class"></applet>
	</body>
	</html>