Sebastian Daschner

Sebastian Daschner is a self-employed Java consultant and trainer. He is the author of the book 'Architecting Modern Java EE Applications'. Sebastian is a Java Champion, Oracle Developer Champion and JavaOne Rockstar.

Enterprise Java
Sebastian DaschnerDecember 14th, 2017
0 22
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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Enterprise Java
Sebastian DaschnerDecember 12th, 2017
1 33
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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Enterprise Java
Sebastian DaschnerDecember 7th, 2017
0 48
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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Enterprise Java
Sebastian DaschnerDecember 7th, 2017
0 50
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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Software Development
Sebastian DaschnerDecember 4th, 2017
0 98
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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Enterprise Java
Sebastian DaschnerNovember 8th, 2017
0 92
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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Enterprise Java
Sebastian DaschnerNovember 8th, 2017
0 198
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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DevOps
Sebastian DaschnerNovember 7th, 2017
0 43
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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