Upgrade to RxJava 2.2 [SPR-16388]

[spring-projects-issues]

Juergen Hoeller opened SPR-16388 and commented

RxJava 2.2 is currently scheduled for end of June, just in time for our 5.1 RC1.

https://github.com/ReactiveX/RxJava/milestones

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Issue Links:

• Deprecate RxJava 1 in favor of RxJava 2+3 [SPR-15062] #19628 Deprecate RxJava 1 in favor of RxJava 2
• Upgrade to RxJava 1.3 & 2.1 [SPR-15497] #20056 Upgrade to RxJava 1.3 & 2.1
• Upgrade to Reactor Core 3.2 [SPR-16386] #20932 Upgrade to Reactor Core 3.2

Referenced from: commits 821ab62