The Java Virtual Machine is the runtime environment that executes Java bytecode, the compiled form of the Java language and its modern descendants (Kotlin, Scala, Clojure). The JVM was introduced by Sun Microsystems in 1995 and has remained one of the most deployed pieces of enterprise software continuously for thirty years.
JVM-based systems underpin a large fraction of financial services, insurance, telecommunications, and retail enterprise backends. Kafka, Cassandra, Elasticsearch, Hadoop, and dozens of other critical distributed systems run on the JVM. The ecosystem's age is a strength (extensive battle-testing, massive library ecosystem) and a weakness (legacy codebases, memory footprint, startup time).
For AI integration, most production-grade enterprise systems integrate AI through API calls to external services (e.g., Claude, GPT, Gemini) rather than running models natively on the JVM. The exception is classical ML models — scikit-learn or ONNX models exported to Java — which remain common for low-latency inference inside JVM applications where cross-service calls would be too slow.