KB

Abstract This article contains information about Concurrency applied to the world of Java in a compact format. Concurrency basics Parallelism in von-Neumann based machine architectures is actually just an emulated behaviour by process schedulers and needs further process synchronisation to work. As software engineer you usually have to coordinate thread Read more

Abstract This article contains information about the Wildfly Java Application Server in a compact format. Enable SSL/HTTPS communication Precondition Provided: A PKCS12 Truststore file named truststore.pkcs12 with a domain certificate (you actually can use JKS as well) within the {$WILDFLY}/standalone/configuration directory. Procedure Using Wildfly 18 (and before) you can and Read more

Abstract This article contains informations about the Oracle DBMS in a compact format. Problem & Solution PL/SQL Script Drop Table If Exists Regretfully a simple mechanism like DROP TABLE IF EXISTS known from PostgreSQL or MariaDB/MySQL still doesn’t exists in Oracle SQL. However you can use PL/SQL and Dynamic SQL Read more

Abstract This article contains information about Docker for Developers in a compact format. The following solutions have been tested on POSIX compatible OS machines running MacOS, CentOS and Ubuntu. They should work on Windows in a PowerShell as well. Problem & Solution Clean & Reset Docker docker system prune -a Read more