When I started to use Spring Boot I had some issues with the validation. The @Validated annotation triggered the validation as requested but the validation terminated with an org.springframework.validation.BindException instead of filling the BindingResult object.
Using the PostgreSQL JDBC driver since 42.2.5, the SSL behaviour changed which can cause FileNotFoundExceptions looking for .postgresql/root.crt.
On our default setup, we use Apache as proxy and load balancer for our applications. This usually works, but caused problems with Thumbor.
During learning Spring Boot I noticed attributes to methods in Spring Boot controllers can be automatically injected.
To migrate my blog from Grails to Spring Boot I created an implementation to inject the current blog instance based on an session attribute.
Using the asset pipline in Grails, the production CSS and Javascript files have been including with a digest appendix. This feature is not available in Spring Boot, therefore I started to create a simple Thymeleaf tag library.
I recently bought the 2.9″ ESPaper Plus Kit, WiFi ePaper display from ThingPulse.
To get this device working with my ansible configured SSL webproxy I had to get some additional debugging skills...
Sometimes if you do not properly delete objects in a Grails/GORM/Hibernate transaction the following error might occur:
deleted object would be re-saved by cascade (remove deleted object from associations)
This message is presented by the org.hibernate.ObjectDeletedException
After some hours of investigation I found a solution to find the cause!
On my new i3 setup I got no notifications of new MCabber events and messages.
Due to the decreasing performance of Android on my Nexus 10 and similar reports of other user I tried to install CyanogenMod 13. This caused some resolvable problems...
My Seafile instance is running on a dedicated webserver behind a reverse proxy which is handling the SSL encryption.
This setup with the protocol change on one of the webservers does not work out of the box / this case is not documented in the official server documentation.
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