See File Compressed source:rt.jar

/root/java

/home/barbar84/www/wp-conte.../plugins/sujqvwi/AnonR/smanonr..../lib/jvm/jre-1.8..../lib/rt.jar
...
applet
awt
beans
browser
io
lang
math
net
nio
rmi
security
sql
swing
text
time
util

Function