jezzmemo/JJException

Health v2 · maintenance only

Adoption not part of the score

1633 stars · 272 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

JJException is an Objective-C library that prevents common runtime crashes in iOS and macOS apps by hooking error-prone APIs such as unrecognized selectors, array/dictionary out-of-bounds access, KVO misuse, NSTimer, NSNotification, and string index errors. It intercepts these exceptions, keeps the app running, and forwards exception records to a custom handler for logging and later fixes.

Use cases

• prevent ios app from crashing on unrecognized selector
• protect against nsarray out of bounds crash
• avoid kvo crash when observer not removed
• fix nstimer memory leak crash
• catch nsnull crashes in objective-c app
• log runtime exceptions instead of crashing the app

When to choose

• you maintain a legacy Objective-C iOS app prone to runtime crashes
• you want a stopgap crash shield while preparing a proper fix or hot-patch
• you need configurable, category-based crash protection with custom logging

When to avoid

• you are building a new Swift-only project with modern safe APIs
• you want a full crash reporting/analytics solution rather than crash prevention
• the project needs actively maintained dependencies - last release was 2022

Facets

library · maturity maintenance

error-handling logging middleware mobile-development developer-tools cross-platform crash-protection objective-c method-swizzling exception-handling cocoapods ios-sdk ios macos mobile

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