When building JDK the CDropTarget.m produces the following warning:

/ws/8-2-dndInterprocInterop-RT-34283/jdk/src/macosx/native/sun/awt/CDropTarget.m: In function '-[CDropTarget init:component:peer:control:]':
/ws/8-2-dndInterprocInterop-RT-34283/jdk/src/macosx/native/sun/awt/CDropTarget.m:85: warning: 'NSView' may not respond to '-setDropTarget:'
/ws/8-2-dndInterprocInterop-RT-34283/jdk/src/macosx/native/sun/awt/CDropTarget.m:85: warning: (Messages without a matching method signature
/ws/8-2-dndInterprocInterop-RT-34283/jdk/src/macosx/native/sun/awt/CDropTarget.m:85: warning: will be assumed to return 'id' and accept
/ws/8-2-dndInterprocInterop-RT-34283/jdk/src/macosx/native/sun/awt/CDropTarget.m:85: warning: '...' as arguments.)