Implement logging in a compiled Java application?

Question

I've a standalone compiled java application. I don't have source files for this application and I am facing an issue. I need to fix this issue and need to log some information. I have only .class files at my disposal. Is it possible to modify these files to enable logging of some information?

score 1 · Answer 1 · edited May 23 '17 at 11:50

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You can De-compile your class files , and can get the codes corresponding to your class files.

Then you can create new files with same name , with change in logging code .

Refer this for more details about De-compiler.

edited May 23 '17 at 11:50

Community

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answered Dec 24 '13 at 05:28

Sujith PS

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score 1 · Answer 2 · answered Dec 24 '13 at 05:32

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I believe you can use aspectj for this.. a quick google search gave me this link.. http://java.jiderhamn.se/2013/08/23/debugging-third-party-libraries-with-aspectj-and-maven/

see if this helps..

answered Dec 24 '13 at 05:32

Yogesh_D

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score 0 · Answer 3 · answered Dec 24 '13 at 05:24

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No, you won't. The only option left to you is, de-compile the class files and get the code.

answered Dec 24 '13 at 05:24

sachin garg

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Implement logging in a compiled Java application?

3 Answers3