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Endpoint activation monitoring and more now available on Open Liberty 21.0.0.9-beta

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Ryan Storey on Aug 6, 2021

Open Liberty 21.0.0.9-beta offers exciting new enhancements for Liberty embedders such as endpoint activation monitoring to determine when endpoints are available to use.

We have two beta packages for Open Liberty:

  • All Beta Features: a larger package that contains all Open Liberty beta features (including Jakarta EE 9 beta features) and GA features and functions.

  • Jakarta EE 9 Beta Features: a lightweight package that contains only the Jakarta EE 9 features.

This means that you can now try out our in-development Open Liberty features by just adding the relevant coordinates to your build tools.

If you try either package, let us know what you think.

All Beta Features package

The All Beta Features package includes the following beta features:

New method to determine active endpoints

The ServerEndpointControlMBean can currently be used to pause and resume endpoints, including HTTP and messaging ports. It can also determine if an endpoint is currently paused. However, there is no way to determine programmatically if an endpoint exists and is active. This update provides a new method on the mbean, isActive, that will determine if an endpoint exists, has started, and is not paused. A new method was added to the ServerEndpointControlMBean:

public boolean isActive(String targets);

The targets parameter is a comma separated list of endpoint names.

This mirrors the existing isPaused method. It will return true only if all of the endpoints listed exist, are started, and are not paused.

// Check if the defaultHttpEndpoint is active
boolean isEndpointActive = mbean.isActive("defaultHttpEndpoint");

For more information about ServerEndpointControlMBean methods, refer to the API documentation.

Try it now

To try out these features, just update your build tools to pull the Open Liberty All Beta Features package instead of the main release. The beta works with Java SE 15, Java SE 11, or Java SE 8.

If you’re using Maven, here are the coordinates:

<dependency>
  <groupId>io.openliberty.beta</groupId>
  <artifactId>openliberty-runtime</artifactId>
  <version>21.0.0.9-beta</version>
  <type>pom</type>
</dependency>

Or for Gradle:

dependencies {
    libertyRuntime group: 'io.openliberty.beta', name: 'openliberty-runtime', version: '[21.0.0.9-beta,)'
}

Or take a look at our Downloads page.

MicroProfile 4.1 Beta Features

MicroProfile 4.1 was originally released in the Open Liberty Beta 21.0.0.8-beta and it is also in this beta. More information on MicroProfile 4.1 is available here.

Jakarta EE 9 Beta Features package

Open Liberty is the first vendor product to be Jakarta EE Web Profile 9.0 compatible since the 21.0.0.2-beta release. Open Liberty is also the first vendor product to be added to the Jakarta EE Platform 9.0 compatability list, with the release of 21.0.0.3-beta. Open Liberty 21.0.0.6-beta further expanded on this compatability by including new Jakarta EE9 supporting features, and 21.0.0.9-beta offers the same compatability with Jakarta EE9 with performance enhancements.

Enable the Jakarta EE 9 beta features in your app’s server.xml. You can enable the individual features you want or you can just add the Jakarta EE 9 convenience feature to enable all of the Jakarta EE 9 beta features at once:

  <featureManager>
    <feature>jakartaee-9.0</feature>
  </featureManager>

Or you can add the Web Profile convenience feature to enable all of the Jakarta EE 9 Web Profile beta features at once:

  <featureManager>
    <feature>webProfile-9.0</feature>
  </featureManager>

Try it now

To try out these Jakarta EE 9 features on Open Liberty in a lightweight package, just update your build tools to pull the Open Liberty Jakarta EE 9 Beta Features package instead of the main release. The beta works with Java SE 15, Java SE 11, or Java SE 8.

If you’re using Maven, here are the coordinates:

<dependency>
    <groupId>io.openliberty.beta</groupId>
    <artifactId>openliberty-jakartaee9</artifactId>
    <version>21.0.0.9-beta</version>
    <type>zip</type>
</dependency>

Or for Gradle:

dependencies {
    libertyRuntime group: 'io.openliberty.beta', name: 'openliberty-jakartaee9', version: '[20.0.0.9-beta,)'
}

Or take a look at our Downloads page.

Your feedback is welcomed

Let us know what you think on our mailing list. If you hit a problem, post a question on StackOverflow. If you hit a bug, please raise an issue.

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