ngosangns Knowledge Base

#virtual-threads

  • JVM Anatomy
    How a .class file becomes a running application: loading and class identity, linking and verification, initialization, interpreter/JIT/AOT, threads and happens-before, heap allocation and GC roots, and JVMTI/JMX/JFR monitoring.
  • Structured Concurrency In Java
    Why ExecutorService fan-out leaks threads and waits too long, and how StructuredTaskScope models subtasks as one unit: fork, join and close, joiner policies, timeout semantics, interrupt-based cancellation, JSON thread dumps, and the JDK 27 preview / JDK 28 final status.