langtools/src/jdk.compiler/share/classes/com/sun/tools/javac/resources/ct.properties

@@ -1,8 +1,7 @@
 apple.laf.*: hidden
 apple.security.*: hidden
-com.apple.concurrent.*: hidden
 com.apple.eawt.*: hidden
 com.apple.eawt.event.*: hidden
 com.apple.eio.*: hidden
 com.apple.laf.*: hidden
 com.oracle.webservices.internal.api.*: hidden