Update dependency io.reactivex.rxjava2:rxjava to v2.2.21

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
io.reactivex.rxjava2:rxjava	2.2.9 → 2.2.21

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Release Notes

ReactiveX/RxJava (io.reactivex.rxjava2:rxjava)

v2.2.21: 2.2.21

Maven
JavaDocs

⚠️ This is the last planned update for the 2.x version line. After February 28, 2021, 2.x becomes End-of-Life (EoL); no further patches, bugfixes, enhancements, documentation or support will be provided by the project.

Enhancements

• Add a system parameter to allow scheduled worker release in the Io Scheduler. (#​7162)
• Add a system parameter to allow Schedulers to use System.nanoTime() for now(). (#​7170)

v2.2.20: 2.2.20

Maven
JavaDocs

⚠️ The 2.x version line is now in maintenance mode and will be supported only through bugfixes until February 28, 2021. No new features, behavior changes or documentation adjustments will be accepted or applied to 2.x. It is recommended to migrate to 3.x within this time period.

Bugfixes

• Fix Observable.flatMap with maxConcurrency hangs (#​6960)
• Fix Observable.toFlowable(ERROR) not cancelling upon MissingBackpressureException (#​7084)
• Fix Flowable.concatMap backpressure with scalars. (#​7091)

v2.2.19: 2.2.19

Maven
JavaDocs

⚠️ The 2.x version line is now in maintenance mode and will be supported only through bugfixes until February 28, 2021. No new features, behavior changes or documentation adjustments will be accepted or applied to 2.x. It is recommended to migrate to 3.x within this time period.

Bugfixes

• Commit 7980c85b: Fix switchMap not canceling properly during onNext-cancel races.

v2.2.18: 2.2.18

Maven

⚠️ The 2.x version line is now in maintenance mode and will be supported only through bugfixes until February 28, 2021. No new features, behavior changes or documentation adjustments will be accepted or applied to 2.x. It is recommended to migrate to 3.x within this time period.

Bugfixes

• Pull 6894: Fix groupBy not requesting more if a group is cancelled with buffered items.

v2.2.17: 2.2.17

Maven

Bugfixes

• Pull 6827: Fix Flowable.flatMap not canceling the inner sources on outer error.

v2.2.16: 2.2.16

Maven

Bugfixes

• Pull 6754: Fix amb, combineLatest and zip Iterable overloads throwing ArrayStoreException for ObservableSources.

Documentation changes

• Pull 6746: Fix self-see references, some comments.

v2.2.15: 2.2.15

Maven

Bugfixes

• Pull 6715: Fix MulticastProcessor not requesting more after limit is reached.
• Pull 6710: Fix concurrent clear in observeOn while output-fused.
• Pull 6720: Fix parallel() on grouped flowable not replenishing properly.

Documentation changes

• Pull 6722: Update javadoc for observeOn to mention its eagerness.

Other changes

• Pull 6704: Add ProGuard rule to avoid j.u.c.Flow warnings due to RS 1.0.3.

v2.2.14: 2.2.14

Maven

Bugfixes

• Pull 6677: Fix concurrent clear() calls when fused chains are canceled.
• Pull 6684: Fix window(time) possible interrupts while terminating.

Documentation changes

• Pull 6681: Backport marble diagrams for Single from 3.x.

v2.2.13: 2.2.13

Maven

Dependencies

• Commit cc690ff2: Upgrade to Reactive Streams 1.0.3.

Bugfixes

• Commit cc690ff2: Avoid using System.getProperties().
• Pull 6653: Fix takeLast(time) last events time window calculation.
• Pull 6657: Fix size+time bound window not creating windows properly.

v2.2.12: 2.2.12

Maven

Bugfixes

• Pull 6618: Fix switchMap incorrect sync-fusion & error management.
• Pull 6627: Fix blockingIterable hang when force-disposed.
• Pull 6629: Fix refCount not resetting when cross-canceled.

v2.2.11: 2.2.11

Maven

Bugfixes

• Pull 6560: Fix NPE when debouncing an empty source.
• Pull 6599: Fix mergeWith not canceling other when the main fails.
• Pull 6601: ObservableBlockingSubscribe compares with wrong object.
• Pull 6602: Fix truncation bugs in replay() and ReplaySubject/Processor.

Documentation changes

• Pull 6565: Fix JavaDocs of Single.doOnTerminate refer to onComplete notification.

v2.2.10: 2.2.10

Maven

Bugfixes

• Pull 6499: Add missing null check to BufferExactBoundedObserver.
• Pull 6505: Fix publish().refCount() hang due to race.
• Pull 6522: Fix concatMapDelayError not continuing on fused inner source crash.

Documentation changes

• Pull 6496: Fix outdated links in Additional-Reading.md.
• Pull 6497: Fix links in Alphabetical-List-of-Observable-Operators.md.
• Pull 6504: Fix various Javadocs & imports.
• Pull 6506: Expand the Javadoc of Flowable.
• Pull 6510: Correct "Reactive-Streams" to "Reactive Streams" in documentation.

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