19322 - "missing" java buttons

Status: VERIFIED FIXED

(Core Graveyard :: Java: OJI, defect, P3)

Description

[craig.aiken]

Mozilla Version M11

 This web page: ctle.colorado.edu/3250f99-- uses java to create a "remote" to
browse around the website. Apparantly the buttons that the remote creates do not
even appear in the browser. The main source of this page does not change
frequently. I know that this page will be valid until at least through 12/20/99.
This webpage also crashes netscape4.51 for Linux. I have never had any problems
with this page when using a windows browser(either IE(sorry) or netscape).
Apparantly there is just a problem interfacing with the applet to load the
buttons correctly.

Comment 1

[leila.garin]

This bug can be reproduced using 11/16/99 Mozilla build on WinNT and the latest
version of jdk1.3 (O). I'm making this an OJI bug.

Comment 2

[drapeau]

Re-assigning to Ed Burns so he can investigate (Windows platform, his
bailiwick).

Comment 3

[leila.garin]

Using jdk1.3 build "O" and 11/19/99 Mozilla build.
Adding the ip address and the URL in the Hosts file in
winnt/system32/drivers/etc before launching Mozilla, the buttons are displayed
properly.
However, there is another serious problem that halts mozilla when you click
either of these buttons "course info" or "content", or when reloading the page.

Comment 4

[edburns]

I have followed Leila's instructions, and confirmed that the buttons do show as
expected.  I have also confirmed that the browser freezes when clicking
the "course info" button.

The following stack trace leads me to assign the bug to ryang:

Trying to get an instance of Class : sun.plugin.cachescheme.BrowserCacheURLConne
ction
Exception in thread "main" java.lang.NullPointerException: null pData
        at sun.awt.windows.WComponentPeer.hide(Native Method)
        at java.awt.Component.hide(Unknown Source)
        at java.awt.Window.hide(Unknown Source)
        at java.awt.Component.show(Unknown Source)
        at java.awt.Component.setVisible(Unknown Source)
        at sun.plugin.navig.win32.PluginObject.setWindow(Unknown Source)
Exception in thread "main" java.lang.NullPointerException: null pData
        at sun.awt.windows.WComponentPeer.hide(Native Method)
        at java.awt.Component.hide(Unknown Source)
        at java.awt.Window.hide(Unknown Source)
        at java.awt.Component.show(Unknown Source)
        at java.awt.Component.setVisible(Unknown Source)
        at sun.plugin.navig.win32.PluginObject.setWindow(Unknown Source)
InstantiateEmbededPlugin for application/x-java-vm
Exception in thread "main" java.lang.NullPointerException: null pData
        at sun.awt.windows.WComponentPeer.hide(Native Method)
        at java.awt.Component.hide(Unknown Source)
        at java.awt.Window.hide(Unknown Source)
        at java.awt.Component.show(Unknown Source)
        at java.awt.Component.setVisible(Unknown Source)
        at sun.plugin.navig.win32.PluginObject.setWindow(Unknown Source)
java.lang.NullPointerException: null pData
        at sun.awt.windows.WFramePeer.getState(Native Method)
        at java.awt.Frame.getState(Unknown Source)
        at java.awt.Frame.removeNotify(Unknown Source)
        at java.awt.Window$1$DisposeAction.run(Unknown Source)
        at java.awt.Window.dispose(Unknown Source)
        at sun.plugin.navig.win32.PluginFrame.windowClosing(Unknown Source)
        at java.awt.Window.processWindowEvent(Unknown Source)
        at java.awt.Window.processEvent(Unknown Source)
        at java.awt.Component.dispatchEventImpl(Unknown Source)
        at java.awt.Container.dispatchEventImpl(Unknown Source)
        at java.awt.Window.dispatchEventImpl(Unknown Source)
        at java.awt.Component.dispatchEvent(Unknown Source)
        at java.awt.EventQueue.dispatchEvent(Unknown Source)
        at java.awt.EventDispatchThread.pumpOneEvent(Unknown Source)
        at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
        at java.awt.EventDispatchThread.run(Unknown Source)
java.lang.NullPointerException: null pData
        at sun.awt.windows.WComponentPeer.hide(Native Method)
        at java.awt.Component.hide(Unknown Source)
        at sun.applet.AppletPanel.run(Unknown Source)
        at java.lang.Thread.run(Unknown Source)
java.lang.NullPointerException: null pData
        at sun.awt.windows.WComponentPeer.hide(Native Method)
        at java.awt.Component.hide(Unknown Source)
        at sun.applet.AppletPanel.run(Unknown Source)
        at java.lang.Thread.run(Unknown Source)
java.lang.NullPointerException: null pData
        at sun.awt.windows.WComponentPeer.hide(Native Method)
        at java.awt.Component.hide(Unknown Source)
        at sun.applet.AppletPanel.run(Unknown Source)
        at java.lang.Thread.run(Unknown Source)
java.lang.NullPointerException: null pData
        at sun.awt.windows.WComponentPeer.show(Native Method)
        at java.awt.Component.show(Unknown Source)
        at sun.applet.AppletPanel.run(Unknown Source)
        at java.lang.Thread.run(Unknown Source)

the pData stuff I know is in JDK land.

Comment 5

[Robert H. Yang]

The Java Plugin and Mozilla do not currently cooperate when the applet is
stopped or refreshed.  See bug 14712 for questions on the OJI call sequence.

The applet isn't being issued the OJI calls it expects.  This needs to be
resolved before something like this can work.

Is there a way to mark this as a "duplicate" bug ?

Comment 6

[rpallath]

NOTE: just changed primary QA contact person.(everything else remains the same)

Comment 7

[edburns]

When testing this with an 11:30am 02 March 2000 build I get a mozilla assertion:

nsGfxTextControlFram.cpp line 3223

I've seen this in many other places, having nothing to do with java, in this 
build so I think this assertion is orthogonal to this bug.

The bug is still occurring, and the applet runs unacceptibly slow.

Comment 8

[ekrock's old account (dead)]

Java broken-->nsbeta2. Java on b2 list. 

There appear to be several problems identified within this single report. One 
report should address one issue to enable independent tracking, patching, & 
verification. 

Could someone please split this report apart into:
1) a perf bug for the slowness (should be marked perf in keywords field)
2) a crasher bug for the crash on clicking Course Description (this should be 
nominated nsbeta2 and crash in the keywords field)
3) the assert

Many thanks for everyone's help!

Comment 9

[leger]

Putting on [nsbeta2-] radar.  Unless you give us some top 100 sites that have 
similar problems.

Comment 10

[edburns]

The page for which this bug was listed is no longer valid.  Can the reporter 
please give me another URL that exhibits the same problem?

Comment 11

[Keyser Sose]

Reopening:
the website is: http://ctle.colorado.edu/3250f99/
Hopefully someone can test it out. I think it will work but I don't have the
latest java plugin.

Comment 12

[rpallath]

tried with FCS bits with nighlty build of Mozilla (dated 10/20/2000) on WinNT 4.0
the applet and the buttons do show up and clicking on the buttons loads the
respective  pages (no crashes).

Comment 13

[edburns]

Thanks Raju,  You are the MAN!

Comment 14

[John Unruh]

Verified on the 2001042504 WinNT Netscape 6 build.