He-Pin opened a new pull request, #3193:
URL: https://github.com/apache/pekko/pull/3193
## Summary
- `String.isBlank()` replacing `trim().isEmpty()`
- `Collection.toArray(IntFunction)` replacing `toArray(new X[0])`
- `Map.forEach` replacing entrySet iteration loops
- Text blocks `"""..."""` replacing multi-line string concatenation
- Records replacing simple data holder classes
## Changes
### String.isBlank() (Java 11+)
- `ShardingEventSourcedEntityWithEnforcedRepliesCompileOnlyTest.java`
### Collection.toArray(IntFunction) (Java 11+)
- `GraphDslTest.java` — `toArray(new String[] {})` → `toArray(String[]::new)`
- `BidiFlowDocTest.java` — `toArray(new Message[0])` →
`toArray(Message[]::new)`
### Map.forEach (Java 8+)
- `ReplicatedShoppingCartExample.java` — entrySet loop → `cart.forEach((k,
v) -> ...)`
- `DeviceGroupQuery.java` — entrySet loop → `deviceIdToActor.forEach((k, v)
-> ...)`
### Text blocks (Java 15+)
- `SubstreamDocTest.java` — 3-line string concat → text block
- `TestConfigExample.java` — config string concatenations → text blocks
### Records (Java 16+)
- `ImmutableMessage.java` → `record ImmutableMessage(int sequenceNumber,
List<String> values)`
- `Messages.java` inner class → record
- `Message.Person` → `record Person(String first, String last)`
- `Bid.java` → `record Bid(UUID bidder, Instant bidTime, int bidPrice, int
maximumBid)`
- Updated callers in `AuctionEntity.java` and `AuctionState.java` (getter
names adjusted)
## Notes
- All changes in test/doc/example code only, no production API modifications
- `javafmtAll` verified — no formatting changes needed
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