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Every software evolves, until it reaches its natural end of life, even the strongest one. This is valid for application runtimes too. They have lifecycles, and when they reach certain milestones, they can affect how the applications they support operate. Yet, many organizations continue to run their mission-critical enterprise Java applications on aging platforms.
One prominent example is the case of Java EE 8-compatible application servers, most of which are now receiving limited support, such as JBoss Enterprise Application Platform (EAP) 7 that recently moved out of Full Support.
How can organizations identify if an ageing runtime is impacting their applications and operations? Let’s dig in.
Like most enterprise software, JBoss EAP follows a defined lifecycle that moves through several stages:
For example, in June 2025, JBoss EAP 7 moved from full support into Extended Lifecycle Support (ELS-1). As a result of this move, current JBoss EAP 7 application servers that subscribed (at a cost) to ELS-1 will receive only critical fixes, at Red Hat’s discretion.
While this shift specifically affects JBoss EAP 7, it illustrates the broader reality: any runtime platform approaching the end of its primary support window can start holding your team back in subtle but costly ways. Here are five signs to watch for.
Once a runtime is no longer fully supported, the patch cadence slows dramatically. Critical fixes may still arrive, but non-critical updates disappear. Teams lose predictability and even small bugs can become urgent blockers. This reduced responsiveness makes it harder to plan updates to your application with confidence.
Developers are often the first to spot the cracks, e.g. by identifying build failures, container image deprecations, or incompatibilities with modern CI/CD tools. When vendor-maintained images vanish or lag behind, teams must create and maintain their own, diverting time away from delivering business features. Also, with fewer options for incremental upgrades, there opportunities for step-wise, successful app modernization or portability are shrinking.
Working on middleware that is no longer fully supported can frustrate developers, who typically need to invest more time in addressing patches, compatibility and updates. For example, container images are deprecated under JBoss EAP 7 ELS-1. A stagnant application server can make talented engineers feel like they’re stuck in maintenance mode instead of building innovative features and solutions within their applications.
When a platform’s support schedule forces urgent migrations, strategy becomes reactive instead of proactive. That pressure can derail product plans and shift focus away from meaningful modernization toward “just staying supported.”
Many Extended Support options, such as ELS-1, are subscription-only and involve additional licensing costs. You may notice the numbers creeping up without seeing anything new land in your backlog. That means you’re paying more just to keep the lights on, while technical debt grows and compatibility and portability slip. Eventually, you’ll be forced to modernize or migrate under pressure, and the longer you wait, the more expensive that project will be.
| Runtime Platform | Full Support Ends | Extended Support Ends | Notes |
|---|---|---|---|
| JBoss EAP 7 | Dec 2023Maintenance Support: Jun 2025 | Jun 2029 (ELS-1), ELS-2 ends in 2030 | Critical fixes only in ELS-1; paid subscription required |
| Open Liberty (Java EE 8 mode) | Community-driven | N/A | Not suitable for mission-critical applications |
| WebLogic Server 12.2.x | Dec 2026 (Premier Support) | Dec 2027 (Extended Support) | Upgrade path to WebLogic 14.x required for longer support |
| Payara Platform Enterprise 5 | Q1 2027 | Q1 2029, Lifetime Support until 2031/2032 (planned) | Actively maintained Java EE 8 runtime; predictable lifecycle |
If your Java EE 8-compatible application server is creeping toward the end of its active support or has already reached it, the warning signs will show up in workflows, overhead, morale and application performance. Recognizing these patterns early gives you the best chance to set your own course for modernization, instead of being forced into one.
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