3.x: Merge in changes from 2.x since the initial branching

[akarnokd]

Version 2.2.9

Bugfixes

• 2.x: Fix zip not stopping the subscription upon eager error #6488: Fix zip not stopping the subscription upon eager error.

Documentation changes

• Fixed typos for comments #6453: Fixed wrong type referenced in Maybe and Single JavaDocs.
• Update the Javadoc of the retry operator #6458: Update the Javadoc of the retry operator.

Other

• Remove dependency of Schedulers from ObservableRefCount #6452: Remove dependency of Schedulers from ObservableRefCount.
• Change error message in ObservableFromArray #6461: Change error message in ObservableFromArray.
• Remove redundant methods from Sample(Observable) #6469: Remove redundant methods from sample(Observable).
• remove unused import in Flowable.java #6470: Remove unused import from Flowable.java.
• remove unused else from the Observable #6485: Remove unused else from the Observable.

Version 2.2.8 - March 26, 2019 (Maven)

Bugfixes

• Undeliverable error handling logic for Completable operators #6442: Add missing undeliverable error handling logic for Completable.fromRunnable & fromAction operators.

Documentation changes

• 2.x composite disposable docs #6432: Improve the docs of CompositeDisposable.
• 2.x: Improve subjects and processors package doc #6434: Improve subjects and processors package doc.
• refactor: improves Creating-Observables wiki doc #6436: Improve Creating-Observables wiki doc.

Other

• Make error messages of parameter checks consistent #6433: Make error messages of parameter checks consistent.

[codecov]

Codecov Report

Merging #6498 into 3.x will increase coverage by 0.02%.
The diff coverage is 100%.

@@             Coverage Diff              @@
##                3.x    #6498      +/-   ##
============================================
+ Coverage     98.23%   98.26%   +0.02%     
+ Complexity     6296     6292       -4     
============================================
  Files           675      675              
  Lines         45172    45163       -9     
  Branches       6246     6244       -2     
============================================
+ Hits          44374    44378       +4     
+ Misses          256      244      -12     
+ Partials        542      541       -1

Impacted Files	Coverage Δ	Complexity Δ
...internal/operators/flowable/FlowableFromArray.java	94.91% <100%> (ø)	3 <0> (ø)	⬇️
...x/internal/operators/observable/ObservableZip.java	100% <100%> (ø)	6 <0> (ø)	⬇️
src/main/java/io/reactivex/Completable.java	100% <100%> (ø)	120 <1> (ø)	⬇️
...l/operators/completable/CompletableFromAction.java	100% <100%> (ø)	4 <0> (ø)	⬇️
...ors/observable/ObservableSampleWithObservable.java	98.68% <100%> (-0.12%)	3 <0> (ø)
...al/operators/flowable/FlowableSamplePublisher.java	100% <100%> (ø)	3 <0> (ø)	⬇️
src/main/java/io/reactivex/Flowable.java	100% <100%> (ø)	567 <16> (ø)	⬇️
...rnal/operators/observable/ObservableFromArray.java	100% <100%> (ø)	3 <0> (ø)	⬇️
src/main/java/io/reactivex/Observable.java	100% <100%> (ø)	542 <20> (ø)	⬇️
src/main/java/io/reactivex/Single.java	100% <100%> (ø)	149 <5> (ø)	⬇️
... and 35 more

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 837ca6b...f4bef8c. Read the comment docs.