How to instrument a Java class with ByteBuddy at build time?

[Paolo Di Tommaso]

The ByteBuddy docs mention that it allows manipulating Java bytecode build time, however, I was unable to find any description regarding that. 

Is that any example showing how ByteBuddy could be injected in a Gradle build? 

Thanks,
Paolo

[Rafael Winterhalter]

Hi Paolo,

did you have a look at the readme? (https://github.com/raphw/byte-buddy/tree/master/byte-buddy-gradle-plugin)

Cheers, Rafael

--
You received this message because you are subscribed to the Google Groups "Byte Buddy" group.
To unsubscribe from this group and stop receiving emails from it, send an email to byte-buddy+...@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/byte-buddy/c3f3f1a1-6d16-44c5-b2db-63e768fa723e%40googlegroups.com.

[Paolo Di Tommaso]

Awesome! didn't realise about that, I had only checked the (nice) docs in the ByteBuddy web site. 

Thanks!

p

[Paolo Di Tommaso]

I've managed to setup a minal build using the Bytebuddy gradle plugin.

https://github.com/pditommaso/bytebuddy-buildtime

However, I've realised that instrumentation is applied only to project class files. Instead, my goal is to modify a library class (actually groovy runtime).  

Is there any way to achieve that or I'm on the wrong path? 

Thanks,
Paolo

[Rafael Winterhalter]

Then you would need to directly use the Plugin.Engine.Default in the build package and transform the library's jar file. The location of this file is very build-dependent, therefore the plugin does not have a way for it. Alternatively, you can instrument the library at runtime using a Java agent.

--

You received this message because you are subscribed to the Google Groups "Byte Buddy" group.
To unsubscribe from this group and stop receiving emails from it, send an email to byte-buddy+...@googlegroups.com.

To view this discussion on the web visit https://groups.google.com/d/msgid/byte-buddy/7d40c49f-38bb-4d30-abe5-b0a406799a84%40googlegroups.com.

[Paolo Di Tommaso]

Likely a bit overkill on my side, thanks for the tips anyhow. 

Cheers,
Paolo