After reading the doc of cc, I still now get how CC can help tracking the Reference Counting problem.
In Netty, there is a pooled ByteBuf, which will report as Memory LEAK if the bytebuf get gced but with referenceCnt > 0.

Can CC helps here?

def useByteBuf() :Unit {
 withByteBuf {buf => 
 val bytes = ByteBufUtil.getBytes(buf)
 // some usage never call byteBuf.release
 }
}
def withByteBuf( op: ByteBuf^ => Unit):Unit = {
 val allocator = pooledByteBufAllocator
 val buf = allocator.byteBuf(1024)
 op(buf)
 //... never call byteBuf.release
}

Can CC help and reporting the byteBuf.release is not called?