Dmitrii B questions

Dmitrii B answers

• Cannot connect to database through Intellij's Data Sources and Drivers
• How do I use @NotEmpty constraint to validate an HTTP request body in Spring Boot?
• Java8: How can I use Pair in Hashmap
• Java String.join but also add delimiter to the end
• Why does Java generics type inference break in chained method calls?
• How to add values in duplicated key Map in Java 8