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21CTO
21CTO
Oct 23, 2019 · Mobile Development

How Android Supports Java 8 Lambda: From invokedynamic to RetroLambda & D8

This article explains the principles behind Java 8 lambda expressions and the invokedynamic bytecode instruction, then examines how Android indirectly supports these features through tools like RetroLambda, Jack & Jill, and the D8 dex compiler, detailing their desugaring processes and limitations.

AndroidD8Desugar
0 likes · 16 min read
How Android Supports Java 8 Lambda: From invokedynamic to RetroLambda & D8
Meituan Technology Team
Meituan Technology Team
Oct 17, 2019 · Mobile Development

Understanding Java 8 Lambda Support on Android: invokedynamic, RetroLambda, Jack & Jill, and D8

The article explains how Java 8 lambda expressions rely on the invokedynamic bytecode instruction, and how Android compensates for its absence by desugaring lambdas through RetroLambda, the now‑deprecated Jack & Jill toolchain, and the modern D8 compiler, each generating synthetic classes for runtime execution.

AndroidD8Desugar
0 likes · 14 min read
Understanding Java 8 Lambda Support on Android: invokedynamic, RetroLambda, Jack & Jill, and D8