ntysdd questions

• Do newer versions of Kafka producers still have "producer.type"?
• In the context of APNs, does p8 and p12 mean token and certificate based authentication respectively?
• This piece of code breaks strict aliasing rule?
• Can I use kafka over Internet?
• Why StringBuffer has a toStringCache while StringBuilder not?
• Java Unsafe.storeFence() documentation wrong?
• Different results for idiv instruction

ntysdd answers