167772 - JRE: Get NullPointerException when loading java applet

Status: RESOLVED INVALID

(Core Graveyard :: Java-Implemented Plugins, defect)

Description

[bmartin]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.0.1) Gecko/20020823 Netscape/7.0
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.0.1) Gecko/20020823 Netscape/7.0

unable to load the java applets on this page.

Reproducible: Always

Steps to Reproduce:
Testing with latest Mozilla trunk(Mozilla/5.0 (Windows; U; Windows NT 5.1;
en-US; rv:1.2a) Gecko/20020910)

1. Launch Mozilla and go to the following url:
http://www.hprc.utoronto.ca/~brucerob/DisplayGreek/dgexamples1.html#_wmh3_872874154
Actual Results:  
Result: The page loads, then a modal msgbox (JRE's msgbox) appears with "General
Exception" error.  The detail error message shows this:
java.lang.NullPointerException
	at DisplayGreek.parseForReturn(DisplayGreek.java:180)
	at DisplayGreek.init(DisplayGreek.java:60)
	at sun.applet.AppletPanel.run(Unknown Source)
	at java.lang.Thread.run(Unknown Source)

Expected Results:  
Should load the java applets on this page with no problems

Comment 1

[Ian Neal]

I'm not sure what JRE you are using but I'm using BuildID 2002090708 with JRE
1.4.0_01 on Win2KSP2 and I get the following in the java console window but no
general exception box.

GreekDisplay Applet failed: there is no 'text' parameter and therefore no text
to display.
java.lang.NullPointerException
	at DisplayGreek.parseForReturn(DisplayGreek.java:180)
	at DisplayGreek.init(DisplayGreek.java:60)
	at sun.applet.AppletPanel.run(Unknown Source)
	at java.lang.Thread.run(Unknown Source)


I presume this has worked sometime in the past can you identify when?

Comment 2

[bmartin]

testing was done against latest Mozilla trunk rv:1.2a Gecko/20020910 with
bundled Java JRE 1.4.0.10

Comment 3

[bmartin]

looks like there is an html problem: an extra <applet> tag appears to exist in
the middle of the following section of source:

<applet CODE="DisplayGreek" WIDTH="400" HEIGHT="136"
 SGI_SRC="/home/u/brucerob/public_html/DisplayGreek/DisplayGreek"
 ><applet>
<param NAME="text"
 VALUE="th\n me\n paraskeuh/n, w)= a)/ndres, kai\ th\n proqumi/an tw=n e)xqrw=n
tw=n e)mw=n, w(/st'e)me\ kakw=s poiei=n e)k panto\s tro/pou, kai\ dikai/ws kai\
a)di/kws, e)c a)rxh=s e)peidh\ ta/xista a)fiko/mhn ei)s th\n po/lin tauthni/,
sxedo/n ti pa/ntes e)pi/stasqe, kai\ ou)de\n dei= peri\ tou/twn pollou\s lo/gous
poiei=sqai: e)gw\ de/, w)= a)/ndres, deh/somai u(mw=n di/kaia kai\ u(mi=n te
r(a/|dia xari/zesqai kai\ e)moi\ a)/cia pollou= tuxei=n par' u(mw=n.">
<param NAME="fontsize" VALUE="12">

</applet><br>

Comment 4

[Frank McKinney]

This bug also lives in Phonex/firebird. With windows 98SE platform and Firebird
Go to www.toast.net/start - applet for  stock quotes returns Null Pointer
Exception and freezes screen 9 out of 10 times. The 1 out of ten it works OK.
Dissabling Java (in options) solves freezing but no stock quotes. In the 1 out
of ten times the applet works (with java enabled) Firebird is eratic at best -
loading some pages freezing on others even when on pages with no applets. Turn
Java off - no problems. LOVE this browser when its working - fast, fast, fast!

Comment 5

[Hermann Schwab]

Mozilla/5.0 (Windows; U; Win98; en-US; rv:1.8a) Gecko/20040519

Bug can´t be tested, as URL gives a 404. 
Invalid?

Comment 6

[Matthias Versen [:Matti]]

yes, after years without comment and invalid testcase