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2.0.0-M2

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@barchetta barchetta released this 20 Mar 20:49
2.0.0-M2
d45ea3c

Notes

This is the second milestone release of Helidon 2.0. It contains significant new features, enhancements and fixes. It also contains backward incompatible changes (see section below). This milestone release is provided for customers that want early access to Helidon 2.0. It should be considered unstable and is not intended for production use. APIs and features might not be fully tested and are subject to change. Documentation is incomplete. Those looking for a stable release should use a 1.4 release.

Notable New Features

These features are preliminary and are snapshots of work-in-progress:

Changes

  • Config: Configuration changes 1357
  • Config: Default config now loads without duplicates for MP 1369
  • Config: Fix merging of value nodes in config 2.0 1488
  • Config: Removed null params and return types from Config API. 1345
  • Config: Resource from config refactoring. 1530
  • Config: Stopped executor service will not cause an error in polling strategy. 1484
  • Config: cache is not using SoftReference anymore. 1494
  • Config: change support refactoring 1417
  • DB Client: Mappers for database date/time/timestamps. 1485
  • Docker Image: Added libstdc++-6-dev to the image 1414
  • Examples: Remove MP quickstart GreetApplication#getClasses method for auto-discovery 1395
  • Examples: Gradle file cleanup. Fix deprecations. 1354
  • Examples: Add OpenAPI annotations to MP quickstart for input and responses on updateGreeting 1394
  • JAX-RS: Safeguard against JAX-RS app modifications after start. 1486
  • JAX-RS: Upgrade Jersey 1438
  • JPA: Resolves JTA/JPA transaction synchronization issues 1473
  • JPA: Ensures that JtaDataSource instances that are acquired when a transaction is already active have their Synchronizations registered appropriately 1497
  • JPA: Added further tests in TestJpaTransactionScopedSynchronizedEntityManager.java 1453
  • JPA: Added more JPA tests 1355
  • JPA: Added small test to verify database changes in existing JPA test 1471
  • Javadoc: Java 11 javadoc fixes. Turn on failOnError 1386
  • Media Support: New media support API. 1356
  • Media Support: Adds Config into MediaSupport#builder() method 1403
  • Messaging: MP Reactive Messaging impl 1287
  • Messaging: Fix completable queue and clean-up of messaging tests 1499
  • Metrics: Prometheus format problems (master) 1440
  • MicroProfile Server now properly fails when CDI is started externally. 1371
  • Native Image: JPA and JTA for native image 1478
  • OpenAPI: Openapi custom context root 2.x 1521
  • OpenAPI: Remove dependency on Jackson via SmallRye -2.x 1458
  • OpenAPI: Support multiple apps in OpenAPI document 1493
  • OpenAPI: Use CONFIG rather than FINE logging for jandex indexes used - 2.x 1405
  • OpenAPI: Use smallrye openapi 1.2.0 (in 2.x) 1422
  • Reactive: Add Helidon-Reactive Scrabble benchmark 1482
  • Reactive: Add JMH Benchmark baseline to reactive 1462
  • Reactive: Add Multi.range and Multi.rangeLong + TCK tests 1475
  • Reactive: Expand TestSubscriber's API, fix a bug in MultiFirstProcessor 1463
  • Reactive: Fix expected exception 1472
  • Reactive: Fix reactive mapper publisher tck test 1447
  • Reactive: Implement Multi.interval() + TCK tests 1526
  • Reactive: Implement Single.flatMapIterable + TCK tests 1517
  • Reactive: Implement defaultIfEmpty() + TCK tests 1520
  • Reactive: Implement defer() + TCK tests 1503
  • Reactive: Implement from(Stream) + TCK tests 1525
  • Reactive: Implement reduce() + TCK tests 1504
  • Reactive: Implement switchIfEmpty + TCK tests 1527
  • Reactive: Implement takeUntil + TCK tests 1502
  • Reactive: Implement timer() + TCK tests 1516
  • Reactive: Improve SingleJust + TCK 1410
  • Reactive: Move onXXX from Subscribable to Single + TCK 1477
  • Reactive: Reactive Streams impl 1282
  • Reactive: Reimplement ConcatPublisher + TCK tests 1452
  • Reactive: Reimplement Multi.dropWhile + TCK test 1464
  • Reactive: Reimplement Multi.first + TCK test 1466
  • Reactive: Reimplement Multi.flatMapIterable + TCK test 1467
  • Reactive: Reimplement Multi.just(T[]), add Multi.singleton(T) + TCK 1461
  • Reactive: Reimplement Single.flatMap(->Publisher) + TCK test 1465
  • Reactive: Reimplement Single.from + TCK tests 1481
  • Reactive: Reimplement Single.map + TCK test 1456
  • Reactive: Reimplement many operators + TCK tests 1442
  • Reactive: Reimplement onErrorResume[With] + TCK tests 1489
  • Reactive: Reimplement the Multi.map() operator + TCK test 1411
  • Reactive: Rewrite collect, add juc.Collector overload + TCK tests 1459
  • Security: public fields for IdcsMtRoleMapperProvider.MtCacheKey 1409
  • Security: Fail fast when policy validation fails because of setup/syntax. 1491
  • Security: PermitAll overridden by JWT 1359
  • WebClient: Webclient implementation (#1205) 1431
  • WebServer: Adds a default send(Throwable) method to ServerResponse.java as the first step in providing an easy facility for reporting exceptions during HTTP processing 1378
  • WebServer: SetCookie test for parse method 1529
  • WebSocket: Integration of WebSockets POC into Helidon 2.0 1280
  • jlink: jlink-image support. 1398
  • jlink: Update standalone quickstarts to support jlink-image. 1424

Thank You!

Thanks to community member David Karnok akarnokd for his
significant contributions to our reactive support.

Documentation

The 2.0.0-M2 documentation is available but is currently incomplete. We appreciate your patience as we continue to work on it.

Backward incompatible changes

This release contains some backwards incompatible changes. Please see the 2.0.0-M2 CHANGELOG for details.

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