4.x: Streamable + range, fromArray, take, error, defer

[akarnokd]

Also

• Fix missing onAssembly calls
• Update RxJavaPlugins to support Streamable onAssembly calls
• Inlined a few TestHelper.withXXX into RxJavaTest.
• Added missing extends RxJavaTests.
• Introduce ThrowableWrapper as a special class indicating it holds some exception that needs to be propagated.
• Make sure Streamable unwraps the ThrowableWrappers the right time

[github-actions]

🐷 TruffleHog + Entropy Beauty Scan

Average entropy of changed code: 4.601 bits/char
Verdict: ✅ Mid-4 beauty detected (thoughtful human code!)

Changed files entropy:

src/main/java/io/reactivex/rxjava4/internal/schedulers/SchedulerToExecutorService.java: 4.453
src/test/java/io/reactivex/rxjava4/internal/schedulers/SchedulerToExecutorServiceTest.java: 4.749

✅ No secrets or suspicious high-entropy strings found.

Mid-4 beauty heuristic in action — powered by our entropy chats! 😊

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 98.50%. Comparing base (e8ec405) to head (8a53562).

Additional details and impacted files

@@             Coverage Diff              @@
##                4.x    #8206      +/-   ##
============================================
+ Coverage     98.44%   98.50%   +0.06%     
- Complexity     6808     6854      +46     
============================================
  Files           777      782       +5     
  Lines         48556    48661     +105     
  Branches       6569     6579      +10     
============================================
+ Hits          47799    47933     +134     
+ Misses          561      534      -27     
+ Partials        196      194       -2     

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[hiSandog]

The ThrowableWrapper part is the one I would want especially well covered. It would be useful to have tests showing Streamable.error, defer, and plugin onAssembly paths unwrap exactly once and do not double-wrap fatal exceptions. That keeps the new API promotion from subtly changing error identity or plugin hooks compared with the existing reactive types.

[github-actions]

🐷 TruffleHog + Entropy Beauty Scan

Average entropy of changed code: 4.601 bits/char
Verdict: ✅ Mid-4 beauty detected (thoughtful human code!)

Changed files entropy:

src/main/java/io/reactivex/rxjava4/internal/schedulers/SchedulerToExecutorService.java: 4.453
src/test/java/io/reactivex/rxjava4/internal/schedulers/SchedulerToExecutorServiceTest.java: 4.749

✅ No secrets or suspicious high-entropy strings found.

Mid-4 beauty heuristic in action — powered by our entropy chats! 😊

[akarnokd]

The ThrowableWrapper part is the one I would want especially well covered. It would be useful to have tests showing Streamable.error, defer, and plugin onAssembly paths unwrap exactly once and do not double-wrap fatal exceptions. That keeps the new API promotion from subtly changing error identity or plugin hooks compared with the existing reactive types.

How are you using RxJava?

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[github-actions]

🐷 TruffleHog + Entropy Beauty Scan

Average entropy of changed code: 4.601 bits/char
Verdict: ✅ Mid-4 beauty detected (thoughtful human code!)

Changed files entropy:

src/main/java/io/reactivex/rxjava4/internal/schedulers/SchedulerToExecutorService.java: 4.453
src/test/java/io/reactivex/rxjava4/internal/schedulers/SchedulerToExecutorServiceTest.java: 4.749

✅ No secrets or suspicious high-entropy strings found.

Mid-4 beauty heuristic in action — powered by our entropy chats! 😊

[github-actions]

🐷 TruffleHog + Entropy Beauty Scan

Average entropy of changed code: 4.601 bits/char
Verdict: ✅ Mid-4 beauty detected (thoughtful human code!)

Changed files entropy:

src/main/java/io/reactivex/rxjava4/internal/schedulers/SchedulerToExecutorService.java: 4.453
src/test/java/io/reactivex/rxjava4/internal/schedulers/SchedulerToExecutorServiceTest.java: 4.749

✅ No secrets or suspicious high-entropy strings found.

Mid-4 beauty heuristic in action — powered by our entropy chats! 😊

[github-actions]

🐷 TruffleHog + Entropy Beauty Scan

Average entropy of changed code: 4.601 bits/char
Verdict: ✅ Mid-4 beauty detected (thoughtful human code!)

Changed files entropy:

src/main/java/io/reactivex/rxjava4/internal/schedulers/SchedulerToExecutorService.java: 4.453
src/test/java/io/reactivex/rxjava4/internal/schedulers/SchedulerToExecutorServiceTest.java: 4.749

✅ No secrets or suspicious high-entropy strings found.

Mid-4 beauty heuristic in action — powered by our entropy chats! 😊

[github-actions]

🐷 TruffleHog + Entropy Beauty Scan

Average entropy of changed code: 4.601 bits/char
Verdict: ✅ Mid-4 beauty detected (thoughtful human code!)

Changed files entropy:

src/main/java/io/reactivex/rxjava4/internal/schedulers/SchedulerToExecutorService.java: 4.453
src/test/java/io/reactivex/rxjava4/internal/schedulers/SchedulerToExecutorServiceTest.java: 4.749

✅ No secrets or suspicious high-entropy strings found.

Mid-4 beauty heuristic in action — powered by our entropy chats! 😊

[github-actions]

🐷 TruffleHog + Entropy Beauty Scan

Average entropy of changed code: 4.601 bits/char
Verdict: ✅ Mid-4 beauty detected (thoughtful human code!)

Changed files entropy:

src/main/java/io/reactivex/rxjava4/internal/schedulers/SchedulerToExecutorService.java: 4.453
src/test/java/io/reactivex/rxjava4/internal/schedulers/SchedulerToExecutorServiceTest.java: 4.749

✅ No secrets or suspicious high-entropy strings found.

Mid-4 beauty heuristic in action — powered by our entropy chats! 😊