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The case for building enterprise agentic apps with Java instead of Python

January 13, 2026
Ahilan Ponnusamy
Related topics:
Artificial intelligenceJava
Related products:
Red Hat AIRed Hat OpenShift AIRed Hat build of OpenJDKRed Hat build of Quarkus

    Integrating generative AI and autonomous agents has become a core business mandate, and it's quickly becoming a part of mission-critical systems. When you choose a runtime for these high-stakes, non-deterministic AI environments, you are essentially setting the parameters for architectural accountability and long-term liability management. This is no small commitment for any organization, especially those in a highly regulated industry such as finance, healthcare, or the public sector. There's a lot of Python in the AI field right now, but I think there's a strong case for choosing Java as the foundation for your AI development and integration.

    Python is fantastic for velocity in the lab. For the backbone of enterprise technology, however, I want something engineered for continuous operation, auditability, and absolute stability. The dynamic nature of Python makes it challenging to enforce the predictability required by regulated or high-availability environments. Choosing Java as your agentic development framework is an exercise in making the mature, responsible engineering choice necessary for corporate compliance and business continuity. When I need to be able to sign off on system stability, I need to see a fundamentally stable runtime environment.

    Critical divergence in software supply chain governance and security

    A unified Java stack for agentic development helps you preserve the software supply chain's integrity, which is built upon standardized processes, rigorous auditing, and a centralized control plane. This is vital when you decide to integrate generative AI and autonomous agents into your core enterprise systems with finance, healthcare, or aerospace data, for example. Java's governance is built around a centralized control point, designed to ensure that everything is traceable and compliant. Why compromise that proven and mature control simply to use a different language for one new application?

    Architectural stability, performance, and runtime guarantees

    For architectural stability and runtime guarantees, Java's fundamental design is a massive advantage. Java code gets compiled into bytecode before it ever runs on the Java Virtual Machine (JVM). This compiled nature provides a critical layer of security assurance. The compiler, by nature, verifies each line of code, checking for errors and structural stability before the application ever goes live. That kind of guarantee for high-availability production applications is non-negotiable.

    Contrast this with Python. We love it for quick, early experimentation because it's a dynamic, interpreted language that lets developers move fast. However, that dynamism means many errors only show up at runtime, sometimes in production. This forces a much longer, more expensive quality assurance phase just to achieve the same stability Java has by default.

    Furthermore, Java frameworks, like Spring Boot and Quarkus, are engineered from the ground up to handle massive concurrency and distributed systems. They deliver superior, sustained execution speed, which is a critical requirement for high-volume transaction processing and responsive agentic AI services. What is the true security cost of integrating a polyglot dependency chain into a rigorously governed Java pipeline? Are marginal gains in prototyping really worth compromising decades of institutional security trust?

    Static code analysis and certification

    Java benefits from a deeply entrenched culture of static application security testing (SAST). Tools for the JVM ecosystem are mature, often supporting certification for regulated standards, such as ISO 26262 and IEC 61508, which is crucial for safety and security-critical software. This level of comprehensive analysis is essential for regulated environments. In contrast, while Python also has SAST tools, the complexity of managing fragmented dependencies, typically sourced from repositories with differing governance models, makes it difficult to apply security policies across distributed services.

    CVE management and remediation

    Enterprise organizations leverage sophisticated software composition analysis (SCA) tools to monitor open source components, which often make up 70% to 90% of modern applications. The processes for vulnerability reporting, identification, and remediation are deeply embedded in Java-centric CI/CD pipelines. The security and dependency management models of general Python repositories, like PyPi, can differ significantly from Java's established enterprise repositories, presenting a serious institutional risk in managing known common vulnerabilities and exposures (CVE).

    Cognitive load and code specialized models

    The strategic decision to maintain dual runtime environments, specifically the JVM and a Python interpreter, introduces significant resource cost and operational drag that enterprises must account for. This duality immediately complicates resource management, deployment orchestration, and substantially increases the attack surface, creating unnecessary security and operational risk.

    Architectural decisions are also talent decisions. The adoption of a polyglot approach for AI introduces significant operational overhead and increased cognitive load on cross-functional engineering, DevOps, and security teams. This choice often leads to the "distributed monolith" anti-pattern, where services are tightly coupled in their deployment and operation, reducing independent deployment freedom and increasing cascading failure risks.

    Furthermore, it causes observability fragmentation: Unified observability is non-negotiable for security and performance. Modern Java frameworks natively ensure unified observability, offering built-in features like Spring Actuator endpoints and seamless integration with tracing standards like OpenTelemetry. Introducing Python fragments this crucial capability. This forces teams to engineer custom solutions to bridge the monitoring and tracing gap between the JVM and Python runtimes, complicating unified service mesh visibility and real-time security monitoring across microservices boundaries.

    The choice presented here is between the substantial resource cost and operational drag incurred by training existing Java developers to maintain a secondary Python-based AI service, or the strategic advantage of leveraging their deep expertise using native Java frameworks. The reality is that deep Java expertise remains mandatory for maintaining existing enterprise infrastructure and ensuring scalability and security across the entire stack, and by adopting Java AI frameworks, enterprises align perfectly with existing high-value skill pools, minimizing the friction associated with managing polyglot teams and maximizing the return on investment (ROI).

    Advantages of code-specialized models

    A unique, strategic advantage for the Java-centric enterprise resides in the quality of code generated by a modern, code-specialized large language model (LLM). A model is trained on vast amounts of public code, and there's a lot of Java code available. There are high quality examples of well-structured Java particularly when it's written within frameworks like Spring Boot and Quarkus, used for secure microservices. Compared to Python, Java's structured and type-safe body of work makes it significantly easier for code-specialized models, used for agentic code generation, to produce code that's accurate and useful.

    The power of strong typing further enhances the reliability of generated code. Java uses a strict and static typing that helps code-specialized models generate syntactically correct and structurally sound code. With dynamically typed languages, many errors only surface at runtime. When better code is generated by AI tooling, developers can focus on the validity, security, consistency, and integration of code.

    Java frameworks and AI

    The latest Java frameworks, including cloud-native solutions like Quarkus with Lang4j extension and established platforms like Spring with SpringAI, follow Java's core architectural principles of modularity, portability, and strong typing. This approach ensures that Java's AI tools are engineered as robust and governed solutions for enterprise integration, even though Python typically remains the dominant language for the initial model training and data science research phases.

    Spring AI for enterprise integration

    Frameworks like Spring AI are designed for AI engineering with established Spring ecosystem design principles, such as portability and the use of "plain old Java objects" (POJO). Its core focus is on integrating AI capabilities into existing Spring Boot applications, ensuring that AI features are managed components that sit seamlessly alongside regular microservices. This framework provides native support for core agentic tasks, such as:

    • Tools and function-calling: Spring AI allows an LLM to autonomously plan and request the execution of client-side Java methods. The tools are registered idiomatically as manageable Java components, often as function beans, and the framework automatically generates the necessary JSON schema.
    • Structured output: Spring AI maps a model's response to Java POJOs, ensuring reliable schema adherence for downstream application logic.
    • Observability and portability: Spring AI automatically inherits operational maturity, including native observability through Spring Actuator endpoints. It offers a portable API across all major model providers, including local models with Ollama, which is critical for vendor independence and data privacy.

    Quarkus and LangChain4j for cloud-native agents

    Quarkus is engineered for fast startup times and low memory usage, making it ideal for high-performance agent deployment. Quarkus provides built-in support for agents, retrieval-augmented generation (RAG), and tool-calling logic through its LangChain4j extension. This extension allows developers to create type-safe AI services, agents, and complex tool-calling logic in plain Java, leveraging Quarkus's cloud-native foundation for a model-driven orchestration pattern similar to the AWS Strands Agents SDK.

    Shift from prototyping to production

    The transition to agentic AI represents a fundamental shift in how applications are developed and managed. For Java-centric enterprises, the most successful path forward is not to adopt a fragmented, polyglot approach, but to strategically reinforce and extend their strongest existing foundation, the Java ecosystem.

    • Standardize on Java for AI: Designate mature Java frameworks, such as Spring Boot and Quarkus, as the primary platform for all generative AI applications, including RAG systems, chatbots, and intelligent agents, especially those requiring deep integration with existing microservices, data systems and enterprise applications. This strategic decision ensures that new AI features automatically benefit from established enterprise operational standards, existing security features, and centralized configuration management from day one.
    • Mitigate supply chain risk through consolidation: Enforce a mono-language stack built entirely around the JVM for application deployment. Protect your software supply chain by utilizing mature, existing security scanning, static code analysis, and CVE management tools already implemented for the Java codebase.
    • Invest in agent observability and auditing: Mandate the immediate use of native observability features, like Spring Actuator, and centralized tracing to ensure that all code-specialized model interactions, tool calls, and agent orchestration decisions are fully observable and auditable.
    • Maximize existing talent: Focus upskilling and training efforts on the standard Java approach to AI development. Convert experienced, enterprise-grade Java developers into proficient generative AI and agentic AI developers.

    Java for AI

    The emerging Java ecosystem provides sophisticated tools that minimize friction and maximize architectural cohesion for AI development. The idea that cutting-edge AI, including advanced agentic applications, exclusively requires Python for every stage is not true any more. The modern Java ecosystem, powered by rapid JDK releases and agile frameworks, is a viable, secure, and performant platform for enterprise generative AI deployment and integration.

    Related Posts

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    • Why some agentic AI developers are moving code from Python to Rust

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