Question
What language is Sun's JVM
written in?
Solution
Sun actually has multiple JVMs. The HotSpot JVM is written largely in C++, because HotSpot is heavily based on the Animorphic Smalltalk VM which is written in C++.
More interesting than HotSpot is IMHO the Maxine Research VM, which is written (almost) completely in Java.
OTHER TIPS
Strictly speaking, C++ (the JVM code does make use of C++ OO facilities).
You can find out for yourself at: http://www.sun.com/software/opensource/java/.
C.
Sun's not a Java shop; it's a C shop. That's what Solaris is written in.
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