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Spring Boot 1.3.0 M1 Release Notes

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Phillip Webb edited this page Jun 8, 2020 · 1 revision

Spring Boot 1.3.0 M1 Release Notes

Upgrading from Spring Boot 1.2

Gradle plugin

Dependency management

Spring Boot’s gradle plugin has been updated in this release to use the dependency management plugin. Most users should be unaffected by this change, however those who were using the versionManagement configuration to apply their own blessed versions will have to update their build scripts.

Rather than requiring a properties file to configure version management, the new plugin allows you to use a Maven bom. For example:

dependencyManagement {
    imports {
        mavenBom 'com.example:example-bom:1.0'
    }
}

Deprecations from Spring Boot 1.2

Classes, methods and properties that were deprecated in Spring Boot 1.2 have been removed in this release. Please ensure that you aren’t calling deprecated methods before upgrading.

Jackson

Spring Boot 1.2 registered any Jackson Module beans with every ObjectMapper in the application context. This made it impossible to take complete control of an ObjectMapper bean’s modules. Spring Boot 1.3 will only register Jackson Module beans with ObjectMappers that are created or configured with the auto-configured Jackson2ObjectMapperBuilder. This brings the behaviour of module configuration into line with Boot’s other Jackson configuration.

Jetty JSPs

The spring-boot-starter-jetty "Starter POM" no longer includes org.eclipse.jetty:jetty-jsp. If you are using Jetty with JSPs you will now need to directly add this dependency yourself.

Spring Security

Spring Boot 1.3 uses Spring Security 4.0. See the Spring Security documentation for information on migrating from 3.2.

Thymeleaf’s Spring Security integration

Due to the upgrade to Spring Security 4, Spring Boot 1.3 has also upgraded the dependency management and auto-configuration of Thymeleaf’s Spring Security support. The coordinates of the new artifact are org.thymeleaf.extras:thymeleaf-extras-springsecurity4. Please update your pom.xml or build.gradle accordingly.

CLI dependency management

Spring Boot 1.3 now supports the use of Maven boms to configure its dependency management in place of the properties file-based metadata. @DependencyManagementBom should be used in place of @GrabMetadata to provide the coordinates of a bom, for example @DependencyManagementBom("io.spring.platform:platform-bom:1.1.2.RELEASE").

Spring 4.2

Spring Boot 1.3 requires Spring Framework 4.2 or later and is not compatible with earlier versions.

Deprecations in Spring Boot 1.3.0 M1

  • The ConfigurableEmbeddedServletContainer setJspServletClassName and setRegisterJspServlet methods have been replaced by setJspServlet.

  • The EndpointMBean class (and subclasses) now expect an ObjectMapper to be provided to the constructor.

  • The DropwizardMetricWriter had been replaced by DropwizardMetricService.

  • @ConditionalOnMissingClass now expects the class name to be provided using the value attribute rather than name.

New and Noteworthy

Tip
 Check the configuration changelog for a complete overview of the changes in configuration.

Version Updates

Spring Boot 1.3 builds on and requires Spring Framework 4.2. Several 3rd party dependencies have been upgraded with this release. No major upgrades have been made to the Tomcat or Jetty versions with this release.

Developer Tools

Spring Boot 1.3 includes a new spring-boot-devtools module which aims to improve the development-time experience. The module provides:

  • Sensible property defaults (for example disabling template caches)

  • Automatic application restarts

  • LiveReload support

  • Remote development support (including remote updates and remote debug via an HTTP tunnel).

See the updated documentation for more information.

Caching Auto-configuration

Auto-configuration is now provided for the following cache technologies:

  • EhCache

  • Hazelcast

  • Infinispan

  • Any compliant JCache (JSR 107) implementation

  • Redis

  • Guava

In addition, simple Map based in-memory caching is also supported. Caching is automatically configured when your application @Configuration is annotated with @EnableCaching. Cache statistics are now also exposed as an actuator endpoint (when the underlying technology allows).

For complete details see the updated documentation.

Actuator Metrics

The spring-boot-actuator metrics support has been extended to support export and aggregation. In addition, Java 8 specific GaugeService CounterService and implementations are now provided (and used when possible) which offer improved performance.

See the extended metrics documentation for details.

Fully executable JARs and service support

The Spring Boot Maven and Gradle plugins can now generate full executable archives for Linux/Unix operating systems. Furthermore you can now easily install these JARs as init.d or systemd services. Running a fully executable JAR is as easy as typing:

$ ./myapp.jar

and to install it as an init.d service:

$ sudo link -s /var/myapp/myapp.jar /etc/init.d/myapp

Additional information is available in the reference documentation.

OAuth2 Support

You can now use @EnableAuthorizationServer and @EnableResourceServer to quickly create OAuth2 authorization and resource servers. In addition, @EnableOAuth2Client allows your application to act as an OAuth2 client. For details see the overhauled security section of the reference guide.

Additional Health Indicators

Additional HealthIndicators are now provided and auto-configured for:

  • Elasticsearch

  • Email

  • JMS

CORS support for actuator endpoints

The Actuator’s endpoint now support CORS. Support is disabled by default but can be enabled by configuring endpoints.cors.allowed-origins.

Auto-configuration excludes report

The auto-configuration report (logged at the DEBUG level or available via the /autoconfig actuator endpoint) now explicitly lists configurations that have been manually excluded via @SpringBootApplication(exclude=…​) or @EnableAutoConfiguration(exclude=…​).

Validation "Starter POM"

A new spring-boot-starter-validation "starter POM" is now available to provide bean validation (JSR 303) support.

Regex support for /env and /metrics

You can now use regular expression to filter the /env and /metrics actuator endpoints. For example http://localhost:8080/metrics/.root..

SendGrid

Auto-configuration is now provided for the SendGrid email delivery service.

Maven start/stop support and admin features

The Maven plugin now include start and stop goals. These enable applications to be started without blocking Maven (allowing other goals to operate on the application). This technique is often used to launch intergration tests from Maven.

A byproduct of this work is that a new SpringApplicationAdminMXBean interface has been added which (when enabled) allows a Spring Boot application to be controlled via JMX.

Miscellaneous

The following miscellaneous updates are also include with Spring Boot 1.3:

  • Jackson’s Java 8 module will be automatically registered when using Java 8.

  • A TransactionTemplate bean is now included as part of TransactionAutoConfiguration.

  • A MailServer bean can now be obtained via JNDI by using the spring.mail.jndi-name property.

  • You can now configure the servlet name (when using an embedded servlet container) via the server.display-name property.

  • Flyway migration strategies can now be configured via a FlywayMigrationStrategy bean.

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