Did you have a point? Yes, JSON really is the best format for serializing data from any of those; for Tcl/Lisp/ML you might get lazy and use the native object format, but doing so will bite you sooner or later. For C/asm you might prefer ASN.1 but in my experience human-readability is worth the effort, and you can and should use a library rather than your own code for serialization. For Java it really is crystal clear; how else would you do it?