Source level debugging of generated code in IntelliJ

Question

I want to debug into code generated by Dagger in IntelliJ. The source files generated by Dagger are put into /target/generated-test-sources/test-annotations and /target/generated-sources/annotations.

I've looked at the Run/Debug Configurations dialog, and didn't see anything obvious. I've also checked the Module Settings and both of these are listed as Source Folders so IntelliJ definitely knows they're source, but for some reason won't hit on any breakpoints I put in generated code.

Heath Borders · Accepted Answer · 2014-10-01 21:00:01Z

2

For IntelliJ 13.1.5:

If /target/generated-sources/annotations is marked as a generated source root, IntelliJ never triggers breakpoints. If /target/generated-sources/annotations isn't marked as generated source root, IntelliJ will trigger the breakpoints, but it won't jump to the associated source.

Unmark /target/generated-sources/annotations as a generated sources root
Set your breakpoints in the generated source
Run your code to trigger the breakpoint
Mark /target/generated-sources/annotations as a generated sources root

IntelliJ now behaves as expected. You'll probably need to remove /target/generated-sources/annotations after you're done for breakpoints to be triggered again.

I've created an IntelliJ bug for this issue. Please upvote it.

edited Oct 1, 2014 at 21:00

answered Oct 1, 2014 at 20:36

Heath Borders

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Tobb · Accepted Answer · 2014-03-14 21:23:53Z

0

All you need is the source files somewhere available to IDEA, then you should be able to debug. Make sure the folders containing the files is included in the project structure settings, then you should be able to open the files with ctrl+n and set breakpoints.

answered Mar 14, 2014 at 21:23

Tobb

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2 Comments

Christopher Perry Over a year ago

They are listed as source folders in module settings already.

Tobb Over a year ago

Can you open them? Perhaps you need to mark the folders they are in as source root. This can be done by right-clicking the folder and selecting "Mark as". Are the breakpoints indicated with a "v" or an "x"?

Antonio Petricca · Accepted Answer · 2020-02-18 10:27:21Z

0

My working warkaround is:

expand the generated artifact (jar, war, ear, ...)
open (and decompile) the class file
put here the breakpoint

At this point IntelliJ fires breakpoints as expected.

answered Feb 18, 2020 at 10:27

Antonio Petricca

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