Complex J2EE application architecture, modern data center background, rows of servers with blinking lights, cables connected to switches, routers, and firewalls, multiple database systems, clustered web servers, load balancers, message queues, ESB integration, firewall security, cloud computing, virtual machines, network topology diagram, 3D isometric view, bright blue and white color scheme, futuristic ambient lighting, detailed textures, intricate network cables, servers with LED indicators.