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Memory access performance and the efficiency of 'boxed' value access are a major area to be addressed by these features. 'Value Type' features and 'Generic specialization' (when applied to lists or collections) reduce memory usage, but more importantly avoid pointer indirection which typically causes a cache miss.cite-ref-10[10]cite-ref-literatejava-11-0[11]

Instead of a list or array of object references, pointing to data values scattered throughout memory, Project Valhalla enhancements will enable list or array values to potentially be laid out linearly—without indirection—as a consecutive block of memory.

Value Types are envisaged as "Codes like a class, works like an int!"cite-ref-value-types-proposal-12-0[12] Synchronization and inheritance would be excluded for Value Types. These would no longer require object identity and associated memory/ pointer overheads, though would be able to assume a 'boxed' form for compatibility.cite-ref-literatejava-11-1[11]

• Generics in Java

• Generic programming

• Value type

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