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//Java
https://docs.oracle.com/javase/tutorial/java/nutsandbolts/_keywords.html
example:
abstract
continue
for
new
switch
assert***
default goto*
package
synchronized
boolean
//Groovy
http://groovy-lang.org/syntax.html#_keywords
example:
as
assert
break
case
catch
class
const
continue
def
for
in
null