Hacking Java
summary
Collection of concrete hacks: Lombok (AST rewrite) alters the compiler internals and reduces boilerplate but breaks debuggers and needs per-compiler fixes; AutoValue (source generation) produces immutable value classes reliably; CGLIB dynamic beans create runtime classes and proxies that work but are slow and hard to maintain; AspectJ bytecode weaving and JavaParser patches enable runtime or source-level fixes — used to patch integer pooling and string-concatenation bugs and to produce a custom Maven build pipeline. Companion examples and tests live at the bitly hackingJava GitHub project.
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chapters (16)
- 0:00Introduction
- 1:48Value objects overview
- 9:13Annotation processing basics
- 10:58Lombok deep dive
- 14:55Auto Value alternative
- 17:23Bytecode generation
- 22:22Source code generation
- 30:37Patching third-party libraries
- 35:18AspectJ for patching
- 39:38Source code patching
- 42:54Compile-time defect analysis
- 46:06Google Error Prone
- 46:49Checker Framework
- 49:21AspectJ policy enforcement
- 51:09Production use cases summary
- 52:16Q&A
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