Jan's Blog

Recently, Jersey 2.32 has been released. Jersey 2.x is a continuous evolution of Jersey implementing JAX-RS 2.1 Specification. While the successor Jakarta Restful Web Services 3.0 Specification, which is part of the Jakarta EE 9 initiative, will bring a lot of new features that will be implemented in Jersey 3.x… Read more

It has been a while since we have released Jersey 2.30. On the client-side, we introduced new PreInvocationInterceptor, PostInvocationInterceptor, and InvocationBuilderListener interfaces. We made the default Rx client using the AsyncInvoker (unlike the RxInvokerProvider). We worked hard to make the Apache HttpClient Connector working with the new Apache Http Client as fine as the old days.… Read more

Jersey 2.30 comes with multiple new features, and this post describes three new interfaces on the client. They are PreInvocationInterceptor, PostInvocationInterceptor, and InvocationBuilderListener.

Suppose a case that the start of the request is to be logged and even measured.… Read more

Jersey comes with various connectors to third-party HTTP clients. The way the connector is used is simple, put the connector and the third-party client to the classpath, and tell the client to use it. For Apache Connector, use:

ClientConfig clientConfig = new ClientConfig();
clientConfig.connectorProvider(new

It is a common issue, I am asked about every now and then, how to pass the user data to a user application? The user needs to change the code behavior depending on the configuration data. This is where the @Context Configuration comes in handy.… Read more

It is a pleasure to announce that Jersey 2.29 has been released. It is rather a large release. While Jersey 2.27 was the last non-Jakarta EE release and Jersey 2.28 was the first release of Jersey under a Jakarta EE umbrella, and both of them stayed compatible with Jersey 2.26 as much as possible (binary compatibility, no new API, only updated dependencies and fixes that did not change the Jersey API or behavior), Jersey 2.29 brings many fixes that stacked up since 2.26 and lot of new features, most notably:

• JDK 11 support
• Possibility to pass configuration properties through the environment variables
• Possibility to pass configuration properties using a Microprofile Config implementation
• Implementation of Microprofile REST Client specification
• Extension module for Spring 5
• Possibility to use HK2 Abstract Binder removed in 2.26 again for backward compatibility
• Enhanced Jetty connector configuration possibilities

Please let us know how you like it!… Read more

Jersey 2.28 has been released and is available in maven central! Jersey 2.28, the first Jakarta EE implementation of JAX-RS 2.1 has finally been released. Please let us know how you like it!

After whole Java EE has been contributed to the Eclipse Foundation, every project mainly focused on introducing the project and on bringing it closer to the community.… Read more