Deep Dive into the .class File and the Class Loader
summary
Covers how Java class loading works in the JVM and ways to optimize it by examining .class files, bytecode, Multi-Release JARs, and Class Data Sharing (CDS). Discusses low-level details of class loading rather than cloud frameworks, with concrete exploration of bytecode and techniques to improve load performance.
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chapters (11)
- 0:00Introduction
- 4:44Java compilation and interpretation
- 10:03Structure of .class file
- 16:31Flags and attributes in .class
- 21:06Role of ClassLoader in Java
- 25:48Class loading phases
- 31:53Bytecode verification
- 36:29Class sharing between processes
- 40:23Securing packages in Java
- 42:28Class initialization and static blocks
- 44:57Summary
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