js-javadump is a JavaScript library for reading .class Java files.
1) Retrieve your .class file from the web, as usual:
function retrieve(url){
var request = new XMLHttpRequest();
request.open("GET", url, false);
request.overrideMimeType("text/plain; charset=x-user-defined");
request.send();
if ( (200 !== request.status) && (0 !== request.status) ){
throw new Error(request.status " Retrieving " url);
}
return request;
};
var filename = "<your .class filename url here>";
var file = retrieve(filename).responseText;
2) Create a JD.Stream object from the retrieved file:
var stream = new JD.Stream(file);
3) Create a JD.ClassFile object from the stream:
var classFile = new JD.ClassFile(stream);
One JD.ClassFile object having all the .class file components according current JSR-202 specification.