ThinkerQAQ

类加载

Java · 6 notes

  1. JVM Class Lifecyclehistorical

    Loading, linking, initialization, use, unloading, and class-loader identity in the JVM.

  2. Java Class and Object Initialization Orderhistorical

    Static initialization, superclass initialization, instance field initializers, initializer blocks, and constructors in Java.

  3. Custom Java Class Loadershistorical

    How custom class loaders define classes, delegation, namespace isolation, and the operational risks of loader leaks.

  4. JVM Object Creationhistorical

    From bytecode allocation through class readiness, heap allocation, zero initialization, object headers, and Java constructor execution.

  5. Java Object Memory Layouthistorical

    Conceptual object layout in HotSpot: headers, instance fields, alignment, compressed references, and why byte offsets are implementation-specific.

  6. How JVM References Locate Objectshistorical

    Direct-pointer and handle-based object-reference models, and why Java code should not depend on a particular physical object-address representation.