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Princeton Edu HotspotOverview PDF 下载
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VM Overview • Compiler focus on object-oriented optimizations > Deep inlining > Class hierarchy analysis > Virtual call inlining > Dynamic deoptimization • No handles: direct object references, aka oops > Exact GC: Root set in globals, thread stacks,
machine registers, VM data structures • Reflection metadata stored in Java heap > Class, method objects become garbage when class is unloaded
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