5
JVM Basics
The Overall Java Application Stack
JVM is built using OO design. Building
Block components providing higher
level function for simplified end user
development and runtime
JVM’s core runtimes are developed in C
or C++ and execute a large majority of
function in native code
9 Garbage collector, MMU, JIT, etc
9 IO subroutines, OS calls
The J2SE/J2EE APIs all exist at the
Java Code layer.
9 Makes data structures available
9 Gives users access to needed
function
9 Allow black box interactions with
system
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