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Vaadin Framework 8.21.0
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@thevaadinman thevaadinman released this 28 Jul 09:18
· 13 commits to master since this release
8.21.0
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Starting with Vaadin 8.21.0, Vaadin Framework 8 releases will be made available through a private Maven repository. To gain access to this private repository, you can find instructions here. Vaadin Framework 8 releases will eventually be exclusively available through this private repository, but for the time being artifacts will also be released to Maven Central.

Changes in Vaadin 8.21.0:

  • Framework 8 builds are now made on Java 11. The resulting JARs are still fully compatible with Java 1.8 runtimes, but only Java 11 SDKs are supported for building Framework 8 for the 8.21 series.

    Build-time compatibility with Java 17 SDKs is being investigated, but is not yet available.

    If you wish to run Vaadin 8 on Java 9+ JREs, you must set the Java environment value java.locale.providers=COMPAT, otherwise locale dependent conversions (country code, currency, etc) WILL be inconsistent with Java 8 behavior, potentially leading to data loss.

    Minimum Maven version to build Vaadin 8 is now 3.6.2.

    Included new dependencies:

    • javassist version 3.29.2-GA
    • maven-enforcer-plugin 3.3.0

    Updated supporting Maven plugins:

    • maven-clean-plugin from 3.0.0 to 3.2.0
    • maven-compiler-plugin from 3.5.1 to 3.11.0
    • maven-site-plugin from 3.5 to 3.12.1
    • maven-jar-plugin from 2.6 to 3.2.2
    • maven-surefire-plugin from 2.19.1 to 2.22.2
    • maven-failsafe-plugin from 2.19.1 to 2.22.2
    • maven-dependency-plugin from 3.0.1 to 3.5.0
    • exec-maven-plugin from 1.6.0 to 3.1.0
    • versions-maven-plugin from 2.3 to 2.15.0
    • build-helper-maven-plugin 1.10 to 1.12
    • maven-source-plugin 3.0.1 to 3.2.1
    • maven-checkstyle-plugin from 3.2.0 to 3.2.2

  • Upgraded GWT dependency to 2.9.0 in order to make Framework 8 more compatible with other Vaadin products and modern build environments, as well as to improve compatibility with modern browsers.

  • Fixed all JavaDoc generation errors and cleaned up some API documentation along the way, resulting in better IDE compatibility and cleaner formatting of the resulting documentation.

  • Fixed a bug in the long polling push transport when the sync id check is disabled, leading to the server continuously pushing.
    This is a backported fix from Flow, see issue #17237 and pull request #17238.

  • Added new API in VaadinSession.java which allows setting priority of UIProviders. The function VaadinSession.addUIProvider now takes an extra integer parameter, which makes it possible to explicitly set priority of the UI providers as they're added.

    Additionally, the functions VaadinSession.getUIProviderPriority and VaadinSession.setUIProviderPriority were added, which can be used together with VaadinSession.getUIProviders to alter the ordering of all UI providers added to the Session.

    It is also possible to specify the priority of the default UI providers by setting the UIPriority value as part of the DeploymentConfiguration.

    This does not alter default behavior. The default UIProvider priority is 0; higher values get processed first. Providers with the same priority will be processed in the order they were added.

    See the VaadinSession JavaDoc for more information.

  • Updated internal Jetty depdency from version 9.4.48.v20220622 to version 9.4.51.v20230217 to avoid a false positive security alert. The internal Jetty server is only used for running tests at build time.

  • Updated plexus-archiver version in vaadin-maven-plugin to 4.8.0 in order to fix a potential security vulnerability.

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