Handle custom exception types in JAX-RS

JAX-RS supports handling custom exceptions — thrown in either EJBs or CID beans — to custom HTTP responses. Assuming we have an “exceptional” EJB:…

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Continuous Delivery friendly Maven versions

A Continuous Delivery pipeline requires predictable software and dependency versions. Snapshot versions, which are common in Maven software projects, contradict…

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Using JAX-RS exceptions for status codes

One way to send specific HTTP (error) status codes from a JAX-RS resource is to use the javax.ws.rs.core.Response class with…

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JPA persistence.xml SQL script definitions

You can define and link to SQL scripts in a JPA persistence context definition that will be executed at runtime.…

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Access Git repositories with Java using SSH keys

For some use-cases you might access a git repository from a Java application. JGit offers a helpful integration with builder…

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WildFly Kubernetes exec probes

Liveness and readiness probes tell Kubernetes whether a pod is running and ready to do some work. An enterprise application…

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Jersey client dependencies for JAX-RS 2.1

Jersey is the reference implementation of JAX-RS 2.1. The following Jersey dependencies are required in order to run a JAX-RS…

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Dockerized Java EE 8 applications with GlassFish 5.0

GlassFish 5.0 represents the reference implementation of Java EE 8. We can dockerize Java EE 8 applications by using a…

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