{var%20f='http://v.t.sina.com.cn/share/share.php?appkey=1515056452',u=z||d.location,p=['&url=',e(u),'&title=',e(t||d.title),'&source=',e(r),'&sourceUrl=',e(l),'&content=',c||'gb2312','&pic=',e(p||'')].join('');function%20a(){if(!window.open([f,p].join(''),'mb',['toolbar=0,status=0,resizable=1,width=440,height=430,left=',(s.width-440)/2,',top=',(s.height-430)/2].join('')))u.href=[f,p].join('');};if(/Firefox/.test(navigator.userAgent))setTimeout(a,0);else%20a();})(screen,document,encodeURIComponent,'','','https://www.manongdao.com/data/attach/logo/logo.png', '推荐 ▲ chillily 的问题《Is it possible to set breakpoints at a specific by》','https://www.manongdao.com/q-973847.html','页面编码gb2312|utf-8默认gb2312'));){kind=link}
I'm using jdb to remotely debug a Java application of which I don't have the source code. Furthermore, the application jars are obfuscated.
I can set method breakpoints but, is it possible to set breakpoints at a specific bytecode instruction within a method? The idea I have is to use some disassembler like javap to identify the interesting instructions.
Can jdb or other Java debugger do this?
You need line numbers to breakpoint on (something I assume has been removed). You can artificially add line numbers to the file using instrumentation and you will be able to breakpoint at every instruction if you wish.