Java Pay Model:

Two out of three -

• Stable
• Secure
• Free

Oracle JDK can only be used in production with money

OpenJDK is the only free JDK but no security update until next release EVERY SIX MONTHS - which does NOT guarantee compatibility

Features:

JDK 8

• Last fully free version
• Interface default methods
• Interface status methods
• Mustache vol 2
• Method reference

JDK 9

• Modularity - very jar is a module
• Need to open package for reflection by Spring and Hibernate
• No more use of classpath
• 4.5K classes total
• jlinker
• OpenJDK jdk.java.net spun off
• Start deprecated removal

JDK 10

• var for variable

JDK 11

Significant Removals:

• java.corba
• java.transaction
• java.activation
• java.xml.bind
• java.xml.ws
• java.xml.ws.annotation
• Java EE
• Many J2EE features
• JavaFX
• AWTUtilities
• Unsafe
• Thread.destroy and Thread.stop

Deprecated

• ThreadPoolExecutor