Build : 'L' (still in fcs build 'I')
OS : 95/98 (NT ok)
app : Java2Demo (random demo locks}

Just letting it loop with cmdline: -delay=20 -runs=999 -ccthread
Hangs Win95/98 after indetermined nth loops.

It seems the key is the -ccthread option that seems to invokes this condition.

Steps to repro:
  1. launch J2D with: java -jar Java2Demo.jar -delay=20 -runs=999 -ccthread

  usually locking up after 2-3 loops on 98.

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As of fcs Build 'O' the indetermined number of loops it takes to lock is now simply 1 iteration.
robert.h.kim@Eng 1999-11-22

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More info on reproducing the problem (Chet Haase, 12/23/99):
I am now able to consistently cause the app (and the window system)
to hang by simply running the "Rotate" app of the Java2Demo program,
as follows:
cd Java2Demo\src
javac demos/Transforms/Rotate.java
java demos/Transforms/Rotate
Once the app is up, I cause it to re-render and ctrl-C it from the cmd-line.
It doesn't hang every time, but more often than not.

Note: I made a slight change to my version of the app to force it to stay
in it's render loop a little longer, thus making the ctrl-C timeframe
a little larger...


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Additional information from a similar bug closed as a duplicate of this bug:

To reproduce, run the java2demo.
Open the Options menu, and leave it open.
When the demo reaches the end, it will hang the system completely.

I was not able to get any debugging info, since I couldn't kill the demo
except by ctrl-alt-del. Note: you have to press ctrl-alt-del twice to get
the system to reboot.

If you have a working Merlin win32 build, you could copy MSVCRTD.DLL into it
(it isn't there in Win95, and we don't put it in the builds), but I don't
have a working build. This would allow you to run in debug mode (-g).

I am running Win95 on an old, slow PC (233 MHz pentium).
The monitor is also old: I am running with 256 colors.

Did not happen with Windows NT Server on the same machine.

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Note that the user was running java2demo from the jdkx script, which
automatically uses the parameters:
-runs=1 -delay=5 -ccthread

chet.haase@Eng 2001-08-06