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Recommended order is metadata, not a lock. Every listed chapter is directly available.

Java Foundations

J00availableJava from zero J01availableValues & flow J02availableEquality & hash J03availablePolymorphism J04availableGenerics & collections

JVM & Concurrency

J05availableExceptions & resources J06availableClassloading & bytecode J07availableHeap & GC evidence J08availableThreads & the JMM

Spring request to database

S00availableRequest system atlas S01availableRequest cost X-ray S02availableJava objects & Spring DI S03availableContainer internals S04availableWeb boundary S05availablePersistence S06availableConcurrency

J05·JVM & Concurrency·implemented

Exceptions & resources

실패가 call stack과 resource owner를 지나갈 때 무엇을 보존해야 하는가?

CAPTUREDJLS_CONTRACTBUILD_CONTRACTNOT_OBSERVED

Outcomes

• checked / unchecked
• stack unwinding
• cause chain
• finally
• try-with-resources
• suppressed exception
• catch-and-ignore 병신 코드

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Endpoint family / fixed variants

• /api/labs/java-runtime-deep?chapter=j05-exceptions-resources&scenario=catch-ignore
• /api/labs/java-runtime-deep?chapter=j05-exceptions-resources&scenario=wrap-with-cause
• /api/labs/java-runtime-deep?chapter=j05-exceptions-resources&scenario=try-with-resources

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Exceptions & resources available.