Delay the start of the "ticks" after the first request.

[cescoffier]

Delay the start of the ticks until we get the first initial request.

Related to smallrye/smallrye-reactive-messaging#1125.

[codecov]

Codecov Report

Merging #514 (2fb69f7) into main (23a3c74) will increase coverage by 0.26%.
The diff coverage is 100.00%.

❗ Current head 2fb69f7 differs from pull request most recent head 60dced0. Consider uploading reports for the commit 60dced0 to get more accurate results

@@             Coverage Diff              @@
##               main     #514      +/-   ##
============================================
+ Coverage     89.91%   90.17%   +0.26%     
- Complexity     3002     3012      +10     
============================================
  Files           382      382              
  Lines         11597    11600       +3     
  Branches       1446     1449       +3     
============================================
+ Hits          10427    10460      +33     
+ Misses          594      578      -16     
+ Partials        576      562      -14     

Impacted Files	Coverage Δ	Complexity Δ
...in/java/io/smallrye/mutiny/groups/MultiCreate.java	100.00% <ø> (ø)	44.00 <0.00> (ø)
...smallrye/mutiny/helpers/test/AssertSubscriber.java	93.62% <ø> (ø)	75.00 <0.00> (ø)
...mutiny/operators/multi/builders/IntervalMulti.java	92.00% <100.00%> (+0.51%)	3.00 <0.00> (ø)
...mallrye/mutiny/operators/multi/MultiFlatMapOp.java	85.98% <0.00%> (+0.31%)	3.00% <0.00%> (ø%)
...a/io/smallrye/mutiny/helpers/BlockingIterable.java	89.79% <0.00%> (+1.02%)	10.00% <0.00%> (ø%)
...erators/multi/builders/SerializedMultiEmitter.java	82.27% <0.00%> (+1.26%)	26.00% <0.00%> (+1.00%)
...tiny/operators/multi/MultiBufferWithTimeoutOp.java	74.57% <0.00%> (+1.69%)	4.00% <0.00%> (ø%)
...java/io/smallrye/mutiny/helpers/Subscriptions.java	80.11% <0.00%> (+2.76%)	48.00% <0.00%> (+2.00%)
...mallrye/mutiny/operators/multi/FlatMapManager.java	98.61% <0.00%> (+2.77%)	20.00% <0.00%> (+1.00%)
...perators/multi/processors/SerializedProcessor.java	90.09% <0.00%> (+2.97%)	24.00% <0.00%> (+1.00%)
... and 4 more

[jponge]

LGTM

Note that it becomes a hot stream after the first subscriber makes a request.

[cescoffier]

Good point @jponge, I've extended the javadoc.