Because you don't have a steady stream of carbs to fuel your brain. Protein at meals helps time-release the carbs for steady energy rather than up and down spikes. If you're relying only on fleeting foods, such as crackers or bread, you'll only experience short bursts of mental energy, followed by the fog.
About SonarQube SonarQube is an open source platform to perform automatic reviews with static analysis of code to detect bugs, code smells and security vulnerabilities on 20+ programming languages including Java, C#, JavaScript, TypeScript, C/C++, COBOL and more.
So back to basics and let me tell you what SonarQube is NOT. SonarQube is NOT a build tool. Period. There are several tools out there like Maven, Ant, Gradle etc. that do a perfect job on that field. SonarQube expects that before you analyze a project it has been already compiled and built by your favorite build tool.