Azul pitches Docker as alternative to virtualization for heavy-duty Java applications
Responding to 'significant interest' from its enterprise customer base, the Java runtime company Azul Systems has released a certified version of its Zulu OpenJDK Java development kit on Docker. It's also preparing a release of its full-featured Zing runtime for high-end customers, due to reach general availability shortly. The Zulu release, which is freely distributable and commercially supported, works with Java SE versions 8, 7 and 6. The combination of Java and Docker is interesting because many customers with enterprise Java applications have resisted virtualizing their applications due to the high resource overhead and performance tax imposed by hypervisors. Azul reports seeing many real-world deployments among its customers, with some even ripping out their existing virtualization layer and replacing it with Docker.