[Java] Custom hibernate SQL queries

Sprint Data JpaRepository makes it easy to have simple custom queries. But more complex queries with custom output, grouping, aggregation and more are partly not possible and need the usage of other utilities.

Java + Vim: Annotation Processing for Lombok, QueryDsl and such

Getting Java working with Vim is quickly done with vim-lsp and vim-lsp-settings.

But using generated classes, like those from Lombok or QueryDsl or MapStruct, needs a little more work.

Java on the command line; and its errors in the vim-quickfix-error-window

Create a code coverage report with jacoco, which can then be found in target/site/jacoco/index.html:

 ./mvnw clean jacoco:prepare-agent install jacoco:report

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Debugging Java with JDB or Vim

 Debugging Java with IntelliJ IDEA or VSCodium and its Java plugins (Debugger for Java, Language Support for Java(TM) by Red Hat) is kind of easy. But doing it without those tools is tricky.