Does, but extremely verbosely.

fn=("upload.abs.2025-09-15T20.06.37.564Z.e0f24926/1");
m1(String g){return fn+'/'+g;}
Arrays.asList(f.list()).stream().map(new java.util.function.Function(){Object apply(Object o){return m1((String)o);}}).collect(java.util.stream.Collectors.toList());