The gap it fixes

CWE-843. The Servlet API predates Java 5 generics: getAttribute always returns Object, so nothing in the language stops a mismatch between what one part of the code stores under a key and what another part expects when it reads it back -- a real, documented pattern in technical forums (Coderanch, Experts Exchange), only discovered at runtime as a ClassCastException otherwise. Searched explicitly for a named competitor (FindBugs rule, CodeQL query, Datadog rule) for this exact angle and found none -- stated honestly, same as this catalog's other weaker-evidence Tier -3 entries.

Facts and pricing

Category: Security
Pricing: Free
Platform: IntelliJ-family
First published: —
Marketplace ID: #34081
Repository: session-attribute-type-confusion-companion
Growth: ▲ +2900.0% since 2026-09-05 (1→30)

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