Java Plug-in 1.3.1_08 problem. IE stucks, running Applet, on setVisible met

Hello,
I have a problem, that appears in Plug-in 1.3.1_08 (1.4 is ok). The Microsoft Internet Explorer sucks, running my Applet.
It occurs, when AWT Frame uses method show().
In a correct situation (for example Java Plug-in 1.4), the applet appears in a separate window (not into IE). When the problem occurs, the Applet's window does not appear and the Internet Explorer (and Java console) are stuk in.
When I change the mehod to setVisible(true), the problem still exists.
In the both cases the Applet appears and works correctly for Java 1.4 and more.
Please help.

Have you check bugs.sun.com to see if this is a known issue? If it isn't there,
file a new bug.

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Message was edited by: Xander90

Can't help you as I have the same problem. Sorry.

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hello friends.....
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ok lemme be more specific abt the question.
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thanks
by
sambareddy

I have successfuly done this.
Change the converted html as per the instructions to point to another page.
Here is an example of the new html page you need to create:
<html>
<head>
<title>Java Plugin Install Page</title>
</head>
<body>
<h2><center>Java Plugin Install Page</center></h2>
<p></p>
<h3>Windows Version Only!!!</h3>
Click here to Download Plugin
<p></p>
<p>You may or may not be asked to either save or run from current location</p>
<p>If the run from current location is available, use that option</p>
<p>If you can only save the file, then save it to your workstation and exit the download page and exit Netscape. Then using Windows Explorer, go to where you downloaded the file and double click on the file to run it. Accept all options during the install process and once it has finished try accessing your web page again using Netscape. You should then get to the web page or application and this page will not apppear again.
</body>
</html>
If you put the file j2re-1_3_1-win.exe on a web server somewhere then you will have to prefix the file with
http://yourwebserverdirectory/
Hope this helps.

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My first idea was to create JavaBeans and instantiate them through OBJECT tags in HTML (not as ActiveX objects). I don't find a way to instatiate a Javabean which was not also an applet.
Does someone knows how to ?
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I've made some tests with IE and Firefox and there is at least two differences between them (both use the Sun Java Plug-in) :
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When you pass a Javascript object to a Java method, it seems that you
cannot use methods like 'getMember', 'call', etc on this object.
(invocation of the method works but returns null)
But, if you access the same object form inside Java starting by
JSObject.getWindows(...) and so on, it works fine.
IE works in all cases.
Example, with the Java applet and HTML below :
. Java applet :
| package JavaJS;
|
| import netscape.javascript.*;
|
| public class FirefoxApplet
|        extends java.applet.Applet {
|   netscape.javascript.JSObject win = null;
|
|   public void init() {
|     win = netscape.javascript.JSObject.getWindow(this);
|   }
|
|   public Object getJSObjectMember( netscape.javascript.JSObject jso, String member ) {
|     return jso.getMember(member);
|   }
|
|   public netscape.javascript.JSObject getJSObjectFromPath( String jsoPath ) {
|     String [] jsoNames = jsoPath.split("\\.");
|     netscape.javascript.JSObject jso = win;
|
|     for( int i = 0; ( i < jsoNames.length ); i++ )
|       jso = (netscape.javascript.JSObject)jso.getMember(jsoNames);
|
| return jso;
| }
|
| public Object getJSObjectPathMember( String jsoPath, String member ) {
| return getJSObjectMember(getJSObjectFromPath(jsoPath),member);
| }
| }
[i]. HTML page :| <HTML>
| <HEAD>
| <TITLE>FirefoxApplet</TITLE>
| <META http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
| <META http-equiv="Content-Script-Type" content="text/javascript">
| <SCRIPT>
| var ffxa = null;
| var txa = null;
|
| var o = {
| s : "object o, member s",
| o : {
| s : "object o.o, member s"
| }
| }
|
| function go() {
| print(ffxa.getJSObjectMember(o,"s"));
| print(ffxa.getJSObjectMember(o.o,"s"));
| print(ffxa.getJSObjectPathMember("o","s"));
| print(ffxa.getJSObjectPathMember("o.o","s"));
| print(ffxa.getJSObjectMember(ffxa.getJSObjectFromPath("o"),"s"));
| print(ffxa.getJSObjectMember(ffxa.getJSObjectFromPath("o.o"),"s"));
| }
|
| function print( text ) {
| txa.value = txa.value+text+"\n";
| }
|
| function loaded() {
| ffxa = document.getElementById("ffxa");
| txa = document.getElementById("txa");
|
| }
| </SCRIPT>
| </HEAD>
| <BODY onload="loaded()">
| <APPLET id="ffxa"
| code="JavaJS.FirefoxApplet.class"
| width="0"
| height="0"
| MAYSCRIPT>
| </APPLET><BR>
| <INPUT type="button" onclick="go()" value="Go"><BR>
| <TEXTAREA id="txa" rows="10" cols="40"></TEXTAREA>
| </BODY>
| </HTML>
When the HTML page has loaded, a click on the Go button gives :
. Firefox output :
| null
| null
| object o, member s
| object o.o, member s
| null
| null
. IE output :
| object o, member s
| object o.o, member s
| object o, member s
| object o.o, member s
| object o, member s
| object o.o, member s
2/ Internet Explorer / JSObject
As we have seen in the previous example, passing Javascript object to
an applet method works. Here, the problem comes when a Javascript object
is pass to a method that's not an applet's method.
If within the applet, you instantiate a new Java object and then
call from Javascript a method on this object with a Javascript object as
parameter then an Exception is raised when invoking that method.
Firefox works fine here.
Example, with the Java applet and HTML page below :
. Java applet :
| package JavaJS;
|
| public class IEApplet extends java.applet.Applet {
|
|   public void init() {
|   }
|
|   public Object echo( Object object ) {
|     return object;
|   }
|
|   public Object newEcho() {
|     return new Echo();
|   }
| }
. Java Echo class
| package JavaJS;
|
| public class Echo {
|
|   public Echo() {
|   }
|
|   public Object echo(Object object) {
|     return object;
|   }
| }
. HTML page :
| <HTML>
|   <HEAD>
|     <TITLE>IEApplet</TITLE>
|     <META http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
|     <META http-equiv="Content-Script-Type" content="text/javascript">
|     <SCRIPT>
|       var iea = null;
|       var txa = null;
|
|       var o = {
|         s : "object o, member s",
|         o : {
|           s : "object o.o, member s"
|         }
|       }
|
|       function go() {
|         print(iea.echo(o));
|         print(iea.newEcho().echo(o));
|       }
|
|       function print( text ) {
|         txa.value = txa.value+text+"\n";
|       }
|
|       function loaded() {
|         iea = document.getElementById("iea");
|         txa = document.getElementById("txa");
|
|       }
|     </SCRIPT>
|   </HEAD>
|   <BODY onload="loaded()">
|     <APPLET id="iea"
|             code="JavaJS.IEApplet.class"
|             width="0"
|             height="0"
|             MAYSCRIPT>
|     </APPLET><BR>
|     <INPUT type="button" onclick="go()" value="Go"><BR>
|     <TEXTAREA id="txa" rows="10" cols="40"></TEXTAREA>
|   </BODY>
| </HTML>When the HTML page has loaded, a click on the Go button gives :
. Firefox output :
| [object Object]
| [object Object]
. IE output :
| [object Object]
with this Exception on the second method invocation :
| java.lang.ClassCastException
|      at sun.plugin.com.DispatchImpl.convertParams(Unknown Source)
|      at sun.plugin.com.DispatchImpl.invokeImpl(Unknown Source)
|      at sun.plugin.com.DispatchImpl$1.run(Unknown Source)
|      at java.security.AccessController.doPrivileged(Native Method)
|      at sun.plugin.com.DispatchImpl.invoke(Unknown Source)
| java.lang.Exception: java.lang.ClassCastException
|      at sun.plugin.com.DispatchImpl.invokeImpl(Unknown Source)
|      at sun.plugin.com.DispatchImpl$1.run(Unknown Source)
|      at java.security.AccessController.doPrivileged(Native Method)
|      at sun.plugin.com.DispatchImpl.invoke(Unknown Source)There is a workaround for this, it's possible to wrap the Javascript object
in a Java object with an applet method and then use this Java object as
parameter.
Anyway, my questions are : regarding points 1/ and 2/ are these bugs with the Sun Java Plug-in ? or someone could explain these behaviors ?
Thanks for your reading.
Software infos :
. Firefox version 1.0.7
. Internet Explorer version 6.0.2800.1106 / JScript version 5.6
. Plug-in Java(TM): Version 1.4.2_08
. JSDK version 1.4.2_08
. Windows 2000 Server version 5.00.2195 sp4

Please test with the new Java Plug-In available in 6u10 at http://jdk6.dev.java.net/6u10ea.html. The Java/JavaScript bridge has been completely rewritten and is now more complete and portable than ever before. Longstanding issues should be fixed with this new version. Please try it and post if you continue to have problems.

Java Plug-in 1.3.1_08 problem. IE stucks, running Applet, on setVisible met

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