Java has been a cornerstone of application development for its versatility and robustness, making it suitable for building scalable applications. However, as applications grow in complexity, challenges arise in maintaining performance and identifying issues, which can be overcome with the integration of observability tools like OpenTelemetry. This framework simplifies the collection and distribution of traces and metrics from deployed applications, providing a unified ecosystem for telemetry data that empowers developers to monitor, debug, and optimize their applications more effectively. OpenTelemetry enables the collection of rich insights into application performance and health, supporting various programming languages and frameworks, and its protocol, OTLP, is designed for high performance and scalability, facilitating efficient transmission of telemetry data between applications and backend analytics platforms. A minimal working Java demo using the OpenTelemetry OTLP exporter can be created to collect traces and send them to an observability backend that supports OTLP, providing a pathway to gain deep insights into application behavior and performance. The integration of OpenTelemetry with tools like Lumigo can significantly enhance observability, introducing features such as auto-instrumentation, which simplifies the process of collecting telemetry data without manual coding, providing enriched insights into system performance and behavior.