[OpenJDK 2D-Dev] JDK9: RFR: 8034998: Fix raw and unchecked lint warnings in javax.imageio

[Henry Jen]

Hi,

Please review the webrev to clean up raw and unchecked warnings in 
javax.imageio packag at,

http://cr.openjdk.java.net/~henryjen/jdk9/8034998/0/webrev/

The webrev does not cover javax.imageio.spi, that will come in anoter 
webrev.

Cheers,
Henry