No. WhatsApp identifies the device via user-agent strings and API handshakes. Spoofing requires a full proxy server that transcodes protocols — not feasible for normal users.
The official WhatsApp client for J2ME was primarily developed for and Symbian S60 devices. Whatsapp java j2me
Interestingly, WhatsApp did not abandon J2ME immediately. As late as 2017, there were official "Lite" builds of WhatsApp intended for J2ME devices (specifically Nokia S40). Whatsapp java j2me