Spring Security 6.1.2 requestMatchers error.
Upgrading our application to Spring 6 with Spring Security 6.1.2 and Tomcat 10.1 resulted in the following UnsupportedOperationException:
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2023
2021
Java 8/11 disabled TLS 1.0/1.1 by default.
OpenJDK has backported disabling TLS 1.0 and 1.1 by default.
Raspberry PI pass NTP config with DHCP.
Configure NTP on a Raspberry PI with DHCP option 42 NTP Servers. DHCP allows to send a whole list of options along with the IP address for the Raspberry PI.
2020
Configure the Spring ThreadPoolTaskExecutor.
Exploring the configuration options of the Spring ThreadPoolTaskExecutor.
How to enable Java SSL revocation checking.
Revocation checking is disabled by default in Java but it can be enabled by setting the correct properties.
2019
Forward requests from nginx to an AWS Load Balancer.
AWS Load Balancers are given a default DNS name. When resolving this DNS name one or more IP addresses will be included in the response. However these IP ad...
2018
Writing tests for Spring WebClient with MockWebServer.
Spring WebFlux includes a reactive, non-blocking WebClient for HTTP requests. It supersedes the AsyncRestTemplate, which was deprecated in Spring 5.
2017
Using the Iterator pattern to query for data.
Everyone knows the Iterator interface in Java but outside the Collections of java the pattern is not often used.
2016
Validating constructor arguments.
When instantiating an object how, and when, should we validate that the arguments given are valid?
Elastic 2.x integration testing.
Moving from elastic search 1 to elastic 2 comes with some breaking changes. One of those changes is the setup of an in-memory node.
Refactoring to components.
This code bugged me for some time now and I finally had some time to come up with a better solution. The code comes from one of the projects I work on but I ...