Rolintocour questions

• Logback: test if property is defined
• Thymeleaf: validation error by field
• Angular material: loose focus with clicking out an input
• Kafka Consumer needs a long poll duration
• egnos positionning in an android device
• Spark: UDF executed many times
• Lombok not working in a Netbeans project
• Is it good practice to try-with-resource a file writer
• Symfony2: choice without empty value

Rolintocour answers