HotSpot : Java Glossary

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HotSpot
Sun’s JIT part of the JDK. Code runs first in interpreted mode and is then analyzed and compiled optimized to target platform. It aggressively inlines frequently used methods, then uses traditional optimisation techniques on the larger code chunks. The HotSpot compiler builds heavily on work done in a PhD thesis by Henry Massalin. The thesis is the mother of all self-modifying code. You not only optimise, you continuously re-optimise.

Learning More

Sun’s Product Info on Hotspot White Paper
compiler
JASM: Java byte code assemblers
Java Class file format
javac.exe
JIT
optimiser
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