Google for document "RM08001-R2" to see an ancient Jlink USB spec. There really isn't much device-specific going on for Cortex-Mx targets..
I was surprised by that wiki article saying that the J-Link EDU v8 does not support Cortex-m4 devices. I use an old J-Link EDU from 2011 with STM32L4 and STM32F4 parts with OpenOCD, which works fine, so perhaps the feature set is limited for J-Link own executables.
@ali_asadzadeh: Just google for 5 secs. I've been able to find a J-Link v10 .bin file from 2019 for the LPC4337 on the first google page. Not sure how much that's worth though (and if it even works), because the LPC4337 is almost 13 euro's on Mouser. For that money and hassle, I would probably get a J-Link EDU Mini (
https://www.segger.com/products/debug-probes/j-link/models/j-link-edu-mini/). It includes the core feature set a clone buyer is probably most interested in (programming and debugging). If you need ancient ARM support (e.g. LPC2100 series), fancy trace features, or faster download speeds (200k/s vs 1MB/s
to RAM) then buy their expensive debug pods..
J-Link debuggers are buried into more dev-boards like the ones from Silicon Labs, usually on some kind of STM32 hidden under the LCD screen. So I suppose Segger figured out that their business model shouldn't resolve around chasing after chinese clones 24/7, but licensing to OEM's (such as Atmel like @ataradov mentioned) is far more sustainable and profitable.