CuriousMind questions

• Lock.java and LockSupport.java: what purpose we have LockSupport?
• java Generic wildcard "?"
• How JavaEE and Spring are related / unrelated? [closed]
• Difference between Bean, Java Bean and Enterprise Java Beans [duplicate]
• HDFS file system namespace
• Difference between J2EE design patterns and Patterns of Enterprise application architecture [closed]
• Difference between library, platform and framework?
• Does a load-balancer need a load balancer?
• How to know the condition at which a thread is "waiting" for?
• Not able to install hadoop using Cloudera Manager

CuriousMind answers