Can run java programs without an OS?

Question

I know that all java programs are executed by the JVM. This makes java compatible with all operating systems (Write once, run anywhere). But can I run a java program without an OS? Maybe run just the JVM? And if it is possible, will the functionality be affected in any way?

Note: My main question is, can java programs be directly run on hardware (via a JVM)? Are there any low level JVMs that I could 'boot up' in my computer?

There was some company that had a board with a chip that ran Java code. Not sure if they still exist, it seemed a bit odd. — JRSofty
– JRSofty, Commented Feb 29, 2016 at 13:55
@JRSofty Azul still exists, and they still produce processors that are optimized for Java, but I believe there focus is now more on optimized JVM implementations. — Mark Rotteveel
– Mark Rotteveel, Commented Feb 29, 2016 at 14:53

FallAndLearn · Accepted Answer · 2016-02-29 13:52:36Z

7

Factually we can have jvm without OS. Heard about some work in going in that direction.

Gained with Oracle's acquisition of BEA Systems ... Oracle has resuscitated avant-garde virtualization technology: a Java Virtual Machine that runs directly on the hypervisor, without an operating system.

answered Feb 29, 2016 at 13:52

FallAndLearn

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