METHOD_NOW_FINAL false positive on private … to protected final … change

[chrisvest]

I had the following method:

    private boolean useIpv6(InetAddress address) {
        …
    }

and changed it to

    protected final boolean useIpv6(InetAddress address) {
        …
    }

which produced the following complaint from japicmp:

There is at least one incompatibility: io.netty.channel.unix.Socket.useIpv6(java.net.InetAddress):METHOD_NOW_FINAL

I worked around it by introducing a static method in netty/netty@2b70575 but I think that should not be necessary.

This is with using japicmp maven plug-in version 0.15.3.

[normanmaurer]

This might be a duplicate of #265