Vert.x 5 Roadmap

Development of Vert.x 5

5.1.0

• HTTP/3
• gRPC improvements
  • gRPC event bus bridge

5.0.0

• Async result callback removals
• Codegen improvements
  • Modularization (Maven)
  • Extract api in a vertx-codegen-api project
  • Repackage vertx-codegen-processor classes in io.vertx.codegen.processor package
• JDK 11 based build: Vert.x 5 should switch to JDK 11 as as minimum version, and builds/CI updated accordingly
  • Vert.x pom parents allow deploy with JDK 11 for Vert.x 5
• Legacy Java feature cleanup: a couple of Java features are fading away with recent JDK versions, those should be migrated to replacement in Vert.x 5
  • Java finalization
  • Biased locking
    • synchronized usage analysis to find un-necessary usage in particular with respect to biased locking
    • define biased locking removal strategies for each of the various usage
• CLI cleanup: the Vert.x CLI will be removed from Vert.x 5 and the references to the CLI should be removed in Vert.x 4 as much as possible
  • remove CLI usage in Vert.x examples (Vert.x 4 branch) Cli cleanup vertx-examples#450
  • remove vertx-unit's CLI command Remove CLI command vertx-unit#77
  • Implement Launcher equivalent with Picocli: Prototype
  • Remove CLI usage in Vert.x Core (examples and code) Remove CLI usage in Vert.x Core (examples and code) eclipse-vertx/vert.x#4769
  • new repository in Vert.x 5 Initial work eclipse-vertx/vertx-launcher#1
    • move the CLI framework to separate JAR (legacy)
    • integrate implementation with Picocli
  • Udpate vertx-dependencies Add new modules from vertx-launcher repo vertx-dependencies#141
  • vertx-stack CLI cleanup CLI Cleanup vertx-stack#140
    • command part and deployment to central of the packaged zip
    • add new modules to the stack
  • Vert.x Shell update (use the new JAR) Add dependency on vertx-launcher-legacy-cli vertx-shell#55
  • Website update Vert.x 5 branch vertx-web-site/vertx-web-site.github.io#147
  • Starter update (add vertx-application-launcher to Vert.x 5 projects)
  • Implement redeployment in the Vert.x Maven Plugin
  • Update deprecations and breaking changes doc
  • Update Migration guide tsegismont/vertx-5-migration-guide@78d3e4e
• Undocumented system properties analysis and cleanup
• Core API improvements
  • CompositeFuture methods should use generic Future<?> type instead of Future raw type
  • Remove obsolete stream implementations (timer stream, request/connect/ws streams, UDP socket stream)
  • Logging API removal, the internal logging API is preserved
  • Replace HTTP client host/port properties by an authority property
  • A few HTTP stream writeXXX API are fluent and instead should return a future signaling the success or failure of the write operation
  • executeBlocking(Handler<Promise>) ➡ executeBlocking(Callable)
  • Replace Future eventually function argument by a supplier argument
  • Connect options / per connection SSL options
  • ClientWebSocket
  • HttpServerResponse close method removal
  • Simplified lock API
  • Vertx builder
  • HTTP client builder
  • Timer task as a Vert.x future
  • Periodic task duplicates the context
  • Local context data SPI
  • Inbound read/message queue
  • Outbound write/message queue
  • TCP shutdown including WebSocket/HTTP
  • Buffer fromJson/toJson
  • ReadStream collector API
  • Deployment API
  • Future expectations
  • HTTP response expectations
  • HTTP client connection
  • HTTP stream reset should be asynchronous
  • Rename WebsocketVersion to WebSocketVersion
  • Integrate io_uring as a transport
  • void start(Handler<Future<Void>>) ➡ Future<T> start()
  • WriteStream#write(...) returns a result extending Future allowing the result to signal back-pressure
    • avoids the write then writeQueueFull potentially racy (non event-loop) pattern
  • Future<T> should not extend anymore AsyncResult<T>
  • Remove SelfSignedCertificate that does not work after Java 8 du to JDK changes
  • Harmonize getter/setter naming convention across the API
  • Consider removing NoStackTraceThrowable Consider removing NoStackTraceThrowable and NoStackTraceException eclipse-vertx/vert.x#5012
• More data object conversion
  • vertx-core
• gRPC improvements
  • JSON wire format
  • gRPC Web
  • Timeout and deadline
• Service proxies improvements
  • data object protobuf support
  • protofile generation
• Usability improvements
  • Shared client configuration
  • Builders
    • Builder style API guidelines
    • Vertx builder
    • HTTP client builder
    • SQL client builder
    • Builders for GraphQL handlers
    • Introduce dataobjects and or builders for Vert.x Web handlers
  • Transform GraphiQL setup into subrouter creation
• RabbitMQ client
• SQL client improvements
  • remove Pool sub interfaces
  • remove map of NetClient
  • SqlConnectOptions should not extend anymore NetClientOptions
  • remove Pool#connectionProvider that is replaced by Supplier<Future<SqlConnectOptions>>
  • JDBC implementation use SQL common connection pool
  • removal of deprecated legacy SQL client API
• Micrometer
  • Micrometer improvements
  • Enable pool name tag by default
• Service Discovery and load balancing for Vert.x clients
  • Address resolver SPI
  • Service discovery and load balancing integrating with address resolver SPI
  • More load balancing policies More load balancing policies eclipse-vertx/vert.x#5154
    • Random
    • Power of two choices
    • Hash based load-balancing (incl. sticky session) Hash based load balancing policy eclipse-vertx/vert.x#5165
  • Generic service lookup
• Health checks dependencies cleanup
• Circuit breaker improvements
• Json Schema deprecated classes cleanup
  • Update vertx-web
• Release process
• Netty 4 decoupling
  • Remove Netty from API usage
• Infinispan 14 update
• Hazelcast 5 update
• Support request forwarding to Web API Service in OpenAPI Router
• Context
  • Resource segregation
  • Event executor SPI
• JPMS support
  • codegen split package removal
    • vertx-codegen split package removal
    • vertx-service-proxy
    • vertx-sql-client
    • vertx-rx
    • vertx-lang-kotlin
  • vertx-auth split package removal
  • Netty JPMS support
  • vertx-codegen JPMS support
  • vertx-core JPMS preparation alternative 1
  • vertx-core JPMS preparation alternative 2
  • vertx-core JPMS support
  • vertx-sql-client JPMS support
  • vertx-jdbc-client JPMS support
  • vertx-auth JPMS support
  • vertx-uri-template JPMS support
  • vertx-json-schema JPMS support
  • vertx-openapi JPMS support
  • vertx-service-resolver JPMS support
  • vertx-grpc JPMS support
  • vertx-http-proxy JPMS support
  • vertx-grpc io.grpc decoupling
  • vertx-redis-client JPMS support
  • vertx-mail-client JPMS support
  • vertx-cassandra-client JPMS support
  • vertx-mongo-client JPMS support
  • vertx-bridge-common
  • vertx-web
    • common + client
    • other components
  • vertx metrics
    • vertx-dropwizard-metrics
    • vertx-micrometer-metrics
  • vertx-tracing
  • vertx-clustering
    • vertx-hazelcast
    • others
  • vertx-unit/junit
  • vertx-jdbc-client
  • vertx-mqtt
  • vertx-stomp
  • vertx-service-proxy
  • vertx-proton
  • vertx-amqp-client
  • vertx-consul-client
  • vertx-health-checks
  • vertx-config
  • vertx-circuit-breaker
  • cleanup / review assigned module names
• Vert.x Tracing
  • Use names specified by OpenTelemetry for tags
• Vertx Metrics
  • client metrics consistency and documentation
    • redis
    • sql client
    • ...
  • metrics implementation should avoid specify a registry (micrometer) and instead it should be set on the vertx builder with a specific VertxMetricsFactory, deprecations in Vert.x 4.x should be applied
• Review Vert.x 5 backlog
• Release prep
  • Ensure we use VerticleBase everywhere
  • Example improvements
  • Migration guide
  • Modular guide
  • Investigate GitHub dev container for how-to / example
  • Improve generation of release notes / breaking change
  • Blog post

5.x

• SQL client
  • possibly improve Query collector/mapping that are not composable
  • stored procedure API
  • HA support for PostgreSQL or more
• CouchDB client
• Non racy HTTP client methods when called outside event-loop
• Extra service resolver registry integration
• Core API improvements
  • Vertx shutdown / restart
• Service proxies improvements
  • service proxy using protobuf transport
  • service proxy streaming
    • event bus streaming is required #643

Components deprecation

• Service Discovery
• Vert.x gRPC Netty

Components sunset

• RxJava 1
• WebAuthn
• Sync
• Maven Service Factory
• HTTP Service Factory
• Service Factory
• Docker base image generation