Dealing with heavy enterprise Java, massive Spring contexts, or SAP Commerce? The "change one line, wait 10 mins" loop is brutal. Here’s a classic breakdown of how JRebel hot-reloading bypassed 120k redeploys and saved 8,000 hours.
Whether you are maintaining a stable Java 8/11 foundation or stacking complex logic in modern frameworks, waiting for the JVM to reload is a universal DevEx killer. Let's dive into how NTT Data fixed their inner loop.
Breaking the "Redeploy" Bottleneck
For these enterprise e-commerce projects, lengthy code redeploy times remain a deep-seated bottleneck for R&D efficiency. The inefficient cycle of “change one line, wait ten minutes for a restar” quietly drains a team's delivery capability, regardless of the technological era. How can this challenge be overcome?
"JRebel improved our development efficiency by allowing us to rebuild the Java classes without restarting the server, saving us a lot of time and focus on the tasks we're dealing with instead of waiting on the server."
— Mansur Arisoy, Head of CX Tech Office, NTT Data Business Solutions
About NTT Data Business Solutions
NTT Data Business Solutions is headquartered in Istanbul, Turkey and employs more than 1,500 people. The company includes a consultancy department which works with customers from B2B and B2C industries who have e-commerce websites. NTT Data consults specifically for clients using SAP Commerce, along with Java and Spring.
SAP Commerce, formerly known as SAP Hybris, is an e-commerce platform used by large enterprise organizations to deliver rich omnichannel experiences to customers, from content management to personalization and order processing.
Many Commerce developers face long redeploy times—a challenge NTT Data was also facing. However, with JRebel, NTT Data developers were able to reduce their redeploy times and boost productivity.
Monolithic Applications and SAP Commerce Led to Decreased Productivity
SAP Commerce is notorious for long redeploy times—with 50% of users reporting redeploy times of eight minutes and higher. For NTT Data, delivering solutions quickly is critical for success. Clients want to see requirements go live as soon as possible and any bugs encountered in production need to be resolved immediately.
NTT Data uses Spring, Ant, Java 8, and Java 11 on their team of 40 developers. For foundational systems driving core global e-commerce transactions, stability is paramount. Like many large enterprises managing massive legacy codebases, relying on stable Long-Term Support (LTS) Java versions is a highly pragmatic choice. However, this extensive historical business logic brings with it the heavy burden of exhaustive JVM class loading and Spring context initialization.Burdened by this technology stack combined with the massive SAP Commerce architecture, developers were forced to wait between four to ten minutes for each redeploy after modifying code.
With a typical frequency of one to two redeploys per hour, this created a massive amount of forced idle time. It completely shattered the developers' focus and state of flow, making it impossible for the team to push work forward efficiently.
JRebel Eliminated Over 120,000 Redeploys for NTT Data
Using JRebel, NTT Data can focus on development rather than waiting on the redeployment of the project. For small changes, such as a typo, developers can now redeploy and see the new code instantly, motivating developers to continue working with SAP Commerce. Now, NTT Data developers can complete their work within scope and deliver solutions to clients sooner.
JRebel Helps NTT Data Business Solutions...
Save Time During Development
JRebel has saved NTT Data almost 8,000 hours of dev time.Increase Productivity
NTT Data has skipped over 120,000 redeploys using JRebel.Deliver Solutions Faster
NTT Data delivers client projects faster with JRebel.
Key Results at a Glance
Hours Saved: 7,989
Redeploys Skipped: 120,157
Faster Delivery: Sped up client project delivery by streamlining the development pipeline.
Optimize Your "Inner Loop" with JRebel | Start Your Free Trial Today
Whether your team is maintaining a rock-solid Java 8/11 commercial foundation or stacking complex business logic in modern Spring frameworks, if you are suffering from bloated applications, slow startups, and agonizing reload times, optimizing the developer's "Inner Loop" (Inner Loop Time) is always the ultimate ROI booster.
JRebel bypasses the complex classloader mechanisms, allowing for instant code changes and a seamless coding experience.
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