Dissecting HelloWorld: Kotlin & Java
summary
Uses javap on JDK class files to show concrete differences: Java HelloWorld bytecode shows major version 55 vs 52, a constant pool of ~30 entries, a default constructor and an explicit object.<init>, while Kotlin-generated class files have constant pool: ~30 vs >50 entries with a giant runtime-visible kotlin.Metadata annotation, no constructor, and an aload_0 that loads the String[] (not this) plus Kotlin intrinsics for null-checks; also a mysterious ldc 0 appearing before println.
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