Re: [isabelle] Isabelle2019-RC2 NullPointerException on Cygwin-Terminal (Windows 10)

I think it is mostly an aesthetic problem, and I believe it occurs less frequently than I thought initially (i.e. mostly when the window focus changes).
Looking at it again, the slowdown seems negligible.


On May 25, 2019 7:21:42 PM GMT+02:00, Makarius <makarius at> wrote:
>On 22/05/2019 16:24, Fabian Immler wrote:
>>> Since it is repeatable for you: Can you try with the
>>> Isabelle2019-RC2.exe desktop application and check the exception
>>> in the activity log? See menu Utilities / Trouble Shooting /
>>> Log.
>> Yes, I've attached the activity.log. Looks like the NPE always occurs
>> together with
>> [debug] EditBus:
>> ViewUpdate[what=VIEW_ACTIVATED,source=org.gjt.sp.jedit.View[active]]
>> [debug] jEdit: checkBufferStatus for all buffers
>> [debug] EditBus: DynamicMenuChanged[menu=recent-files,source=null]
>I did not change anything for Isabelle2019-RC3 here: the exception is
>rare on my test machines that I cannot get hold of it.
>Is this more than an aesthetic problem? Is there really a slowdown of
>interaction when printing many exceptions, as you mentioned earlier?
>	Makarius

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