Kevin questions

• How to use multiple property-placeholder in a Spring xml file
• What happens if I mistakenly push a local branch to master
• Oracle SQL trigger for automatically set a column value
• SLF4J version mismatch and duplicated binding
• How to save null value in Guava Optional
• Guice: How to do late binding?
• Class doesn't contain matching constructor for autowiring
• PropertyUtils failed to convert boolean if the getter uses "is" rather than "get"
• JUnit & Ant : How to show detailed error message on the screen?
• How to config Apache2 to redirect URL

Kevin answers