8027698: Platform specific jars are not being signed by the sign-jars target
Reviewed-by: ihse, tbell, wetmore
<?xml version="1.0" encoding="ISO-8859-1"?>
<excludeList>
<test id="JDK-8014647.js" />
<test id="javaclassoverrides.js" />
<test id="JDK-8020809.js" />
</excludeList>