class template, hoping that the template will make it clear to me what needs to be changed. class files, that why IвЂ™m using 010 EditorвЂ™s. IвЂ™m not familiar with the internal structure of. java files remain valid: for example, if there is something in that structure like a field length, I need to change the field length too. Into something like вЂњ1.2 (20210922a)вЂќ.Дoing so will make the string longer, thus I need to add a byte to the file (trivial), but I also need to make sure that the binary structure of. For example, the first field I selected here, u4 magic, is the magic header of a. Under the hex/ascii dump, the template results are displayed: a set of nested fields that match the internal structure of. Here is how you can apply a template manually, in case the file extension is not the original extension:ДЄnd this is how the template results look like: ThatвЂ™s what I wanted to know: is there a template for. class extension and installed and ran the template for. When opening the file, 010 Editor recognized the. Here is the file opened inside the editor:

Before going the route of decompiling / editing / recompiling, I tried with 010 Editor. class file: extend a string inside that class. ItвЂ™s a powerful binary editor with scripting and templates. 010 Editor is one of few commercial applications that I use daily.

010 editor edit as exe