Jon McPherson questions

• Save HashMap properties to a properties file, and load those properties back to the HashMap
• Hibernate does wrong insertion order for child entities with composite keys
• Web Workers in Chrome v54 run twice as slow when running in an inactive tab
• Best way to maximize code reuse while avoiding implementation inheritance and maintaining internalization
• SQL select entries in other table linked by foreign keys
• odd SQLException - Could not retrieve transation read-only status server
• CSS: How can I set image size relative to parent height?

Jon McPherson answers