Code Quality · JetBrains plugin
RxJava Disposable Leak Companion
FreeCode Quality / Logging
Warning icon on an RxJava xxx.subscribe(...) call (Observable/Flowable/Single/Maybe/Completable, RxJava 2.x/3.x) written as a bare expression statement: the returned Disposable is discarded immediately, with no way to ever call .dispose() on it later. RxJava's own guidance is explicit: always dispose of subscriptions when no longer needed, or this is a well-documented source of memory/resou
The gap it fixes
orders.subscribe(order -> process(order)); compiles fine and starts the subscription — but the Disposable it returns is thrown away on the spot. There is no variable, no CompositeDisposable.add(...), nothing — the subscription can never be cancelled, and if the source never completes (a long-lived stream, a UI event source, a polling observable), it silently keeps the subscriber alive for the rest of the application's life.
Facts and pricing
- Category
- Code Quality
- Pricing
- Free
- Platform
- IntelliJ-family
- First published
- 2026-08-27
- Marketplace ID
- #33884
- Repository
rxjava-disposable-leak-companion- Growth
- New listing
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