FULL PRODUCT VERSION :
java version "1.6.0_22"
Java(TM) SE Runtime Environment (build 1.6.0_22-b04)
Java HotSpot(TM) Client VM (build 17.1-b03, mixed mode, sharing)
ADDITIONAL OS VERSION INFORMATION :
Microsoft Windows XP [Version 5.1.2600]
A DESCRIPTION OF THE PROBLEM :
When I re-load the applet, the JEditorPane throws a NullPointerException.
STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
run applet in IE or AppletViewer, and reload.
EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
JEditorPane do not throw a NullPointerException
ACTUAL -
JEditorPane throws a NullPointerException.
ERROR MESSAGES/STACK TRACES THAT OCCUR :
java.lang.NullPointerException
at javax.swing.text.html.parser.Parser.errorContext(Parser.java:736)
at javax.swing.text.html.parser.Parser.parse(Parser.java:2240)
at javax.swing.text.html.parser.DocumentParser.parse(DocumentParser.java:105)
at javax.swing.text.html.parser.ParserDelegator.parse(ParserDelegator.java:78)
at javax.swing.text.html.HTMLEditorKit.read(HTMLEditorKit.java:232)
at javax.swing.JEditorPane.setText(JEditorPane.java:1499)
at javax.swing.JEditorPane.<init>(JEditorPane.java:273)
at sample.SampleApplet.start(SampleApplet.java:22)
at sun.applet.AppletPanel.run(AppletPanel.java:464)
at java.lang.Thread.run(Thread.java:662)
REPRODUCIBILITY :
This bug can be reproduced always.
---------- BEGIN SOURCE ----------
-------------------------
Java source
-------------------------
package sample;
import javax.swing.JApplet;
import javax.swing.JEditorPane;
import javax.swing.text.html.parser.ParserDelegator;
/**
* <applet code="sample.SampleApplet.class" width="150" height="150"></applet>
*/
public class SampleApplet extends JApplet {
{
System.out.println("initialize");
}
public void start() {
System.out.println("start");
String html = "<html><body>test</body></html>";
JEditorPane.registerEditorKitForContentType("text/html", "javax.swing.text.html.HTMLEditorKit");
try {
JEditorPane htmlPane = new JEditorPane("text/html", html);
} catch(RuntimeException e) {
e.printStackTrace();
}
}
}
-------------------------
HTML for IE
-------------------------
<html><body>
<object classid="clsid:8AD9C840-044E-11D1-B3E9-00805F499D93" width="150" height="150">
<param name="code" value="sample.SampleApplet.class">
</object>
</body></html>
-------------------------
HTML for AppletViewer
-------------------------
<applet code="sample.SampleApplet.class" width="150" height="150">
</applet>
---------- END SOURCE ----------