Johan Fabry
@johanfabry.bsky.social
Software engineering professor turned software craftsman. Mad scientist @RaincodeLabs. Personal account, insert usual employer disclaimer blah here.
Note: I will block suspected bots/trolls without mercy.
Note: I will block suspected bots/trolls without mercy.
Oh, IBM mainframe, where do you get your constants from?
"n can be 0 to 562949953421310"
Seriously?
"n can be 0 to 562949953421310"
Seriously?
November 20, 2025 at 2:19 PM
Oh, IBM mainframe, where do you get your constants from?
"n can be 0 to 562949953421310"
Seriously?
"n can be 0 to 562949953421310"
Seriously?
Thanks, Endpoint Central for interrupting my flow with this super-useful information.
November 13, 2025 at 5:53 PM
Thanks, Endpoint Central for interrupting my flow with this super-useful information.
Mainframe computing in 2025: use AI to generate a CICS BMS map to show a "WELCOME" screen on a user terminal.
August 1, 2025 at 12:38 PM
Mainframe computing in 2025: use AI to generate a CICS BMS map to show a "WELCOME" screen on a user terminal.
How, arguably, NOT to document a CICS command:
July 21, 2025 at 2:59 PM
How, arguably, NOT to document a CICS command:
Not to mention, some excellent coupons as well. Thanks www.philips.cl ! Sad you're not on Bluesky though.
June 12, 2025 at 5:48 PM
Not to mention, some excellent coupons as well. Thanks www.philips.cl ! Sad you're not on Bluesky though.
Cool! An extended warranty! Until ... when exactly?
June 12, 2025 at 5:44 PM
Cool! An extended warranty! Until ... when exactly?
It seems like somebody missed the class where they explained about shallow versus deep copies. Argh! 🤦
So this is why the test fail on the night build but not dev machines. Only took me a week to pin down ...
So this is why the test fail on the night build but not dev machines. Only took me a week to pin down ...
April 18, 2025 at 5:12 PM
It seems like somebody missed the class where they explained about shallow versus deep copies. Argh! 🤦
So this is why the test fail on the night build but not dev machines. Only took me a week to pin down ...
So this is why the test fail on the night build but not dev machines. Only took me a week to pin down ...
Off-by-one error in my Chilean bank. Top right: 5 offers. Actual listing of offers: 4. 🤦
The name of the bank? Banco Security.
I'm feelin' pretty secure now ... NOT.
The name of the bank? Banco Security.
I'm feelin' pretty secure now ... NOT.
April 2, 2025 at 6:04 PM
Off-by-one error in my Chilean bank. Top right: 5 offers. Actual listing of offers: 4. 🤦
The name of the bank? Banco Security.
I'm feelin' pretty secure now ... NOT.
The name of the bank? Banco Security.
I'm feelin' pretty secure now ... NOT.
Are you shitting me, C# ?
March 28, 2025 at 4:54 PM
Are you shitting me, C# ?
OK so I honestly did not think this would work, so I am quite positively surprised!
I wonder if the LLM computed this itself, or handed it off to some text-reversing agent. And I can't even decide which of the two options is the most impressive!
I wonder if the LLM computed this itself, or handed it off to some text-reversing agent. And I can't even decide which of the two options is the most impressive!
March 27, 2025 at 6:44 PM
OK so I honestly did not think this would work, so I am quite positively surprised!
I wonder if the LLM computed this itself, or handed it off to some text-reversing agent. And I can't even decide which of the two options is the most impressive!
I wonder if the LLM computed this itself, or handed it off to some text-reversing agent. And I can't even decide which of the two options is the most impressive!
I found this gem, after a few hours of debugging. Aargh.
Well, no shit, Sherlock!
OK, I'm being a bit harsh: the specs are unclear about this point.
But still ...
Well, no shit, Sherlock!
OK, I'm being a bit harsh: the specs are unclear about this point.
But still ...
March 20, 2025 at 6:49 PM
I found this gem, after a few hours of debugging. Aargh.
Well, no shit, Sherlock!
OK, I'm being a bit harsh: the specs are unclear about this point.
But still ...
Well, no shit, Sherlock!
OK, I'm being a bit harsh: the specs are unclear about this point.
But still ...
Writing a < 50 LOC test program in COBOL. It's been a long long time since I wrote any COBOL to speak of. So it only took me 10 times to get it to compile 😁
No idea if it will run well, though 😜
No idea if it will run well, though 😜
February 7, 2025 at 6:11 PM
Writing a < 50 LOC test program in COBOL. It's been a long long time since I wrote any COBOL to speak of. So it only took me 10 times to get it to compile 😁
No idea if it will run well, though 😜
No idea if it will run well, though 😜
I could not resist. Sorry not sorry. 😁
January 24, 2025 at 1:02 PM
I could not resist. Sorry not sorry. 😁
Hey, E35, you're not the boss of me!
January 20, 2025 at 2:01 PM
Hey, E35, you're not the boss of me!
Step 3: ???
Step 4: Profit!!
(from the IBM DFSORT documentation)
Step 4: Profit!!
(from the IBM DFSORT documentation)
January 10, 2025 at 4:08 PM
Step 3: ???
Step 4: Profit!!
(from the IBM DFSORT documentation)
Step 4: Profit!!
(from the IBM DFSORT documentation)
Seems like it's always 23% on this island.
January 8, 2025 at 11:20 AM
Seems like it's always 23% on this island.
When you need to break, then break.
December 19, 2024 at 3:10 PM
When you need to break, then break.
At least one of my colleagues is getting a lump of coal from Santa this year!
December 2, 2024 at 2:38 PM
At least one of my colleagues is getting a lump of coal from Santa this year!