Adapt c-family.kak define-commands for filetype/java.kak

Help
1

I’m trying to adapt c-family.kak define-commands for the java.kak filetype and running into a closing braces problem.

# c-family.kak#L124

define-command -hidden c-family-indent-on-closing-curly-brace %[
    # align to opening curly brace when alone on a line
    try %[
        # in case open curly brace follows a closing paren, align indent with opening paren
        execute-keys -itersel -draft <a-h><a-:><a-k>^\h+\}$<ret>hm <a-F>)M <a-k> \A\(.*\)\h\{.*\}\z <ret> <a-S>1<a-&>
    ] catch %[
        # otherwise align with open curly brace
        execute-keys -itersel -draft <a-h><a-:><a-k>^\h+\}$<ret>hm<a-S>1<a-&>
    ] catch %[]
]

here is where it is going right

# works correctly on parenthesis then closing brace
# execute-keys -itersel -draft <a-h><a-:><a-k>^\h+\}$<ret>hm <a-F>)M <a-k> \A\(.*\)\h\{.*\}\z <ret> <a-S>1<a-&>
#
public static void main(String[] args) {
    () {
    }
}

# when brace starts on newline
#
public static void main(String[] args) 
{
    {
    }
}

here is where it is going wrong

# produces incorrect indentation on closing brace
# execute-keys -itersel -draft <a-h><a-:><a-k>^\h+\}$<ret>hm<a-S>1<a-&>
#
public static void main(String[] args) {
    {
}
}

this should do the align job correctly hm<a-S>1<a-&> but doesn’t. What am I missing guys?